View Automotive Passenger Car Catalog

CIRCUIT
PROTECTION
SOLUTIONS FOR
AUTOMOTIVE
APPLICATIONS
Passenger Car Solutions
Our offering of automotive circuit protection solutions encompasses a wide range of applications:
Powertrain
Safety
Comfort
Infotainment
Fuse Box
Power Supply
Lighting
Engine Management
Transmission Control
Cooling Fan
Water Pump
ABS
EPAS
Air Bag
Chassis Control
Window Lift
Sun Roof
Door Lock
Power Seat
HVAC
Dashboard
Navigation
In-Car Entertainment
Wire Harness
Generator
HID Headlight
Headlight Leveling
Directional Lighting
portfolio of Littelfuse automotive
technologies, products & services
Passenger Automobiles Aftermarket
SERVICES
Product Technologies Plus Application Design Evaluation Services
Littelfuse is the world leader in circuit protection. We offer an
extensive selection of circuit protection technologies for Automotive
applications. Littelfuse circuit protection expert staff can assist you in
designing circuit protection for your most demanding
applications. Solutions for over-current applications as well as
over-voltage applications are available from Littelfuse.
CIRCUIT PROTECTION TECHNOLOGIES (1-8)
1
5
2
6
3
7
4
8
1. Fuses/Footprint Reduction
MICRO2™, MICRO3™ fuses
2. Medium Current Cartridge Fuses
MCASE+™ cartridge fuses; considerably smaller
than JCASE® and Low Profile JCASE® fuses
3. Discrete High Current Fuses
High Current Bolt Down fuses and fuse arrays
4. ZCase Masterfuse Smallest high current distribution product in the
industry
5. Masterfuse High current distribution array
6. ZCase Single MEGA Minimal Footprint Bolt Down fuse
7. High Voltage Fuses
Low-current fuses for Electric and Hybrid Electric
Vehicles
8. Battery Cable Protection
CABLE PRO ® protectors for mounting directly
inline as part of a high power cable assembly
Table of Contents
Blade Fuses
1
Cartridge Fuses
10
High Current Fuses
16
Cable & PAL Fuses
38
High Voltage Fuses
42
Specialty Products
47
Fuseology51
Helping to make the World a Cleaner Place to Live
Littelfuse and the Environment
As members of the global community, we at Littelfuse
have always strived to understand the impact of what
we do, and of what we create, on the world around us.
Because of this, our concern for the environment has
always been an integral and fundamental part of our
business. We continually work to balance our business
objectives with the need to protect and improve the local
and global environment.
Our Strategy for the Design of
Eco-friendly Products
Littelfuse has established a focused program committed to
developing high-performance eco-friendly products along
with a comprehensive set of processing/reliability data and
technical process expertise. This includes processes for
eliminating, detecting and documenting the presence of
hazardous materials such as
• Lead
• Cadmium
• Hexavalent Chromium
• Mercury
• Brominated flame-retardants
(PBBs and PBDEs)
littelfuse.com
The Littelfuse strategy for eco-friendly products is
specifically designed to help support our worldwide
customers in their transition to Lead-Free processing.
All products considered to be lead-free are marked with
this symbol.
Littelfuse defines lead-free as products which contain less
than 1000ppm (0.1%) Lead, measured by weight of the
entire product.
All RoHS compliant products are marked with this symbol.
Littelfuse follows the requirement set by the European
Union for all RoHS compliant products. The European Union
Directive 2002/95/EC RoHS restricts the use of Lead,
Mercury, Hexavalent Chromium, Cadmium and Brominated
flame-retardants (PBBs and PBDEs)
Visit www.littelfuse.com/lead-free
for further information.
Blade Fuses
MICRO2 ™ Blade Fuse 32V 2
MICRO3 ™ Blade Fuse 32V
3
Low Profile MINI® Fuses Rated 58V 4
MINI ® Blade Fuse Rated 32V
5
MINI ® Blade Fuse Rated 58V
6
ATOF ® Blade Fuse Rated 32V
7
MAXI® Blade Fuse Rated 32V
8
MAXI® Blade Fuse Rated 58V
9
1
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Blade Fuses
MICRO2™ Blade Fuses Rated 32V
The MICRO2™ Fuse is the new standard for vehicle circuit protection. Its sub-miniature
design meets the need for more circuits to be protected while utilizing less space and its
ability to cope with high temperatures in adverse environments makes the MICRO2™ Fuse of
recommended choice for protection.
Black amperage stamps are used on the 20A & 25A / light colored housings to improve
contrast for vision system inspection.
Specifications MICRO2 TM Blade Fuses
Voltage Rating:
MICRO2
(Silver Plated)
32 VDC
MICRO2 Sn
(Tin Plated)
32 VDC
Interrupting Ratings:
1000A @ 32 VDC
1000A @ 32 VDC
*Component Level Temperature Range:
**System Level Temperature Range:
-40˚C to +125˚C
-40˚C to +105˚C
-40˚C to +105˚C
-40˚C to +85˚C
105°C and 85°C are typical system level temperature requirements.
Terminals:
Ag plated zinc alloy
Housing Material:
Conforms to: PA66
PA66
SAE 2741 and ISO 8820-4 in reference to electrical, mechanical and environmental performance requirements
Ordering Information
MICRO2 Sn
(Tin plated) Blade Fuses
Sn plated zinc alloy
Time-Current Characteristics
TM
Part Number
Package Size
% of Rating
Opening Time Min / Max
0327xxx.YX2S
4000
110
100 h / –
0327xxx.UXS
500
135
0.75 sec / 120 sec
0327xxx.LXS
50
160
0.30 sec / 50 sec
MICRO2 Sn Fuse
0327xxx.YX2T
Dimensions
Dimensions in mm
4000
Ratings
Part Number
Current Rating
Housing
(A)
Material Color
200
0.15 sec / 5 sec
350
0.04 sec / 0.50 sec
600
0.02 sec / 0.100 sec
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A2s)
0327005._
5
116
17.4
17
032707.5_
7.5
106
10.8
47
0327010._
10
102
7.7
89
0327015._
15
94
4.9
189
0327020._
20
91
3.5
397
0327025._
25
90
2.6
585
0327030._
30
88
2.1
1028
MICRO2 Fuse Preliminary Time-Current Characteristics
Time-Current Characteristic Curves
Temperature Rerating Curve
July 2008
100.00
5
10.00
7.5
Time (s)
10
15
20
25
1.00
30
0.10
*Component Level Temperature =
the maximum ambient temperature
that a single fuse will survive. This
does not factor-in the heat from a
populated fuse box, but does include
the heat from the current load with
the proper rerating. **System Level
Temperature represents the ambient
temperature of the fuse box at a
location within the vehicle. The
temperature within a populated fuse
box (in a given location) will be
higher. The limiting factor is the
plating. Sn-plating’s temperature
limit is ≈130°C, and Ag-plating
allows up to 150°C at the terminal
interface.
0.01
1
10
100
1000
Current (A)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
littelfuse.com
2
Blade Fuses
MICRO3™ Blade Fuses Rated 32V
The MICRO3™ Fuse has 3 terminals and 2 fuse elements with a common center terminal.
Its sub-miniature design meets the need for more circuits to be protected while utilizing less
space and its ability to cope with high temperatures in adverse environments makes the
MICRO3™ Fuse of recommended choice for protection.
Specifications
Voltage Rating:
32 VDC
Interrupting Ratings:
1000A @ 32 VDC
*Component Level Temperature Range: -40˚C to +125˚C
**System Level Temperature Range:
-40˚C to +105˚C
105°C is a typical system level temperature requirement.
Terminals:
Ag plated zinc alloy
Housing Material:PA66
Conforms to: SAE 2741 and ISO 8820-4 in reference to electrical, mechanical and environmental performance requirements
Ordering Information
Part Number
Dimensions
Dimensions in mm
Time-Current Characteristics
Package Size
% of Rating
0337xxx.PX2S
2000
110
100 h / –
0337xxx.LXS
50
135
0.75 sec / 120 sec
160
0.30 sec / 50 sec
Ratings
Opening Time (Min / Max)
200
0.15 sec / 5 sec
350
0.04 sec / 0.50 sec
600
0.02 sec / 0.100 sec
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A2s)
5
116
17.4
17
033707.5_
7.5
106
10.8
47
0337010._
10
102
7.8
89
0337015._
15
94
4.9
189
Part Number
Current Rating
(A)
0337005._
Housing
Material Color
Temperature Rerating Curve
Time-Current Characteristic Curves
*Component Level Temperature = the maximum ambient temperature that a
single fuse will survive. This does not factor-in the heat from a populated fuse
box, but does include the heat from the current load with the proper rerating.
**System Level Temperature represents the ambient temperature of the fuse
box at a location within the vehicle. The temperature within a populated fuse
box (in a given location) will be higher. The limiting factor is the plating.
Sn-plating’s temperature limit is ≈130°C, and Ag-plating allows up to 150°C at
the terminal interface.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
3
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Blade Fuses
Low Profile MINI® Blade Fuses Rated 32V
The Low Profile MINI® fuse has similar performance characteristics as the standard MINI®
fuse. The lower overall height allows for more space and weight savings. The Low Profile
MINI® fuse is designed to mate with tuning-fork terminals, which provides additional weight
and material savings in fuse box designs by eliminating the need for female box terminals.
Specifications
Low Profile MINI ®
Blade Fuses
Voltage Rating:
Interrupting Rating:
*Component Level Temperature Range:
**System Level Temperature Range:
58 VDC
1000A @ 58 VDC
-40˚C to +125˚C
-40˚C to +105˚C
105°C is a typical system level temperature requirement.
Terminals:
Housing Material:
Complies with:
Ag plated zinc
PA66
ISO 8820-9
Ordering Information
Plating
% of Rating
0891xxx.NXS
5000
Ag
110
360,000 s / –
0891xxx.U
500
Ag
135
0.750 s / 120 s
100
Ag
200
0.150 s / 5 s
350
0.080 s / 0.250 s
600
0.030 s / 0.100 s
0891xxx.H
Low Profile MINI 10.9mm Fuse
®
0891xxx.NXWS
Dimensions
Dimensions in mm
Time-Current Characteristics
Package
Size
Part Number
Low Profile MINI ® 10.9mm
Blade Fuses
Low Profile MINI ®
10.9mm
5000
Ag
Opening Time Min / Max (s)
Ratings
Part Number
Current Rating
(A)
0891005._
089107.5_
0891010._
0891015._
0891020._
0891025._
0891030._
5
7.5
10
15
20
25
30
Time-Current
Characteristic Curves
Housing
Material Color
Cold Resistance
(mΩ)
I2t
(A2s)
17.21
10.65
7.59
4.70
3.35
2.56
2.06
22
53
102
198
420
613
1110
Temperature Rerating Curve
Low Profile MINI ® 10.9mm
*Component Level Temperature = the maximum ambient temperature that a single fuse will
survive. This does not factor-in the heat from a populated fuse box, but does include the
heat from the current load with the proper rerating. **System Level Temperature represents
the ambient temperature of the fuse box at a location within the vehicle. The temperature
within a populated fuse box (in a given location) will be higher. The limiting factor is the
plating. Sn-plating’s temperature limit is ≈130°C, and Ag-plating allows up to 150°C at the
terminal interface.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
littelfuse.com
4
Blade Fuses
MINI® Blade Fuses Rated 32V
The MINI® Fuse is the standard for vehicle circuit protection. Its miniature design meets the
need for more circuits to be protected while utilizing less space, and its ability to cope with
high temperatures in adverse environments makes the MINI® Fuse of recommended choice
for protection.
MINI ® Blade Fuses
MINI ® Sn (Tin plated)
Blade Fuses
Specification
MINI
(Silver Plated)
Interrupting Rating:
1000A @ 32 VDC
Voltage Rating:
32 VDC
*Component Level Temperature Range:
-40˚C to +125˚C
**System Level Temperature Range:
-40˚C to +105˚C
105°C and 85°C are typical system level temperature requirements.
Terminals:
Ag plated zinc alloy
Housing Material:
PA66
Complies with:
SAE J2077, ISO 8820-3,
UL 248 Special Purpose Fuses
Ordering Information
Part Number
Time-Current
Characteristic Curves
MINI Sn
(Tin Plated)
1000A @ 32 VDC
32 VDC
-40˚C to +105˚C
-40˚C to +85˚C
Sn plated zinc alloy
PA66
SAE J2077, ISO 8820-3
not UL recognized
Time-Current Characteristics
Package Size
% of Rating
0297xxx.WXNV
3000
110
360,000 s / –
0297xxx.U
500
135
0.75 s / 600 s
0297xxx.H
100
200
0.15 s / 5 s
0297xxx.L
50
350
0.080 s / 0.500 s
600
0.030 s / 0.100 s
MINI ® Sn Fuse
0297xxx.WXT
Opening Time Min / Max (s)
3000
Ratings
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A²s)
2
171
55.60
2.8
3
153
33.75
9.4
4
121
23.48
17
0297005._
5
129
17.75
25
029707.5_
7.5
135
10.85
68
0297010._
10
108
7.42
93
0297015._
15
98
4.58
270
0297020._
20
96
3.21
380
0297025._
25
86
2.36
625
0297030._
30
87
1.85
1130
Part Number
Current Rating
(A)
0297002._
0297003._
0297004._
Housing
Material Color
Dimensions
Temperature Rerating Curve
Dimensions in mm
*Component Level Temperature = the maximum ambient temperature that a
single fuse will survive. This does not factor-in the heat from a populated
fuse box, but does include the heat from the current load with the proper
rerating. **System Level Temperature represents the ambient temperature of
the fuse box at a location within the vehicle. The temperature within a
populated fuse box (in a given location) will be higher. The limiting factor is
the plating. Sn-plating’s temperature limit is ≈130°C, and Ag-plating allows up
to 150°C at the terminal interface.
0.825
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
5
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Blade Fuses
MINI® Blade Fuses Rated 58V
MINI® style fuse for use in 42V Systems. Same Time-Current characteristic as the 32V MINI®
fuse. Fits into standard MINI® fuse sockets. Has a rejection feature to prevent fuses with
lower voltage rating from being wrongfully inserted into the circuit. Current rating 2A - 30A
@58 VDC max.
Specifications
MINI ® Blade Fuses
Interrupting Rating:
Voltage Rating:
*Component Level Temperature Range:
**System Level Temperature Range:
1000A @ 58 VDC
58 VDC
-40˚C to +125˚C
-40˚C to +105˚C
105°C is a typical system level temperature requirement.
Terminals:
Housing Materials:
Complies with:
Ag plated zinc alloy
PA66
SAE J2077, SAE 2576
ISO 8820
UL 248 Special Purpose Fuses
Ordering Information
Time-Current
Characteristic Curves
Part Number
Time-Current Characteristics
Package Size
% of Rating
3000
110
360,000 s / –
135
0.75 s / 600 s
0997xxx.WXN
Opening Time Min / Max (s)
200
0.15 s / 5 s
350
0.080 s / 0.500 s
600
0.030 s / 0.100 s
Ratings
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A²s)
2
171
55.60
2.8
3
153
33.75
9.4
0997004_
4
121
23.48
17
0997005_
5
129
17.75
25
099707.5_
7.5
135
10.85
68
0997010_
10
108
7.42
93
0997015_
15
98
4.58
270
0997020_
20
96
3.21
380
0997025_
25
86
2.36
625
0997030_
30
87
1.85
1130
Part Number
Current Rating
(A)
0997002_
0997003_
Housing
Material Color
Dimensions
Temperature Rerating Curve
Dimensions in mm
*Component Level Temperature = the maximum ambient
temperature that a single fuse will survive. This does not factor-in
the heat from a populated fuse box, but does include the heat from
the current load with the proper rerating. **System Level
Temperature represents the ambient temperature of the fuse box
at a location within the vehicle. The temperature within a populated
fuse box (in a given location) will be higher. The limiting factor is
the plating. Sn-plating’s temperature limit is ≈130°C, and Ag-plating
allows up to 150°C at the terminal interface.
0.825
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
littelfuse.com
6
Blade Fuses
ATOF ® Blade Fuses Rated 32V
Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original
equipment circuit protection standard for foreign and domestic automobiles and trucks.
Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage
electronic applications.
Specification
ATOF ® Blade Fuses
ATOF ®
(Tin Plated)
Voltage Rating:
32 VDC
Interrupting Rating:
1000A @ 32 VDC
*Component Level Temperature Range:
-40˚C to +105˚C **System Level Temperature Range:
-40˚C to +85˚C 105°C and 85°C are typical system level temperature requirements.
Terminals:
Sn plated zinc alloy
Housing Material:
PA66
Complies with: SAE J1284,ISO 8820-3
UL Listed:
File AU1410 CSA Certified:
File No. 29862
ATO ® Ag (Silver plated)
Blade Fuses
Ag plated zinc alloy
PA66
SAE J1284,ISO 8820-3
File AU1410
File No. 29862
Time-Current Characteristics
% of Rating
Package Size
Current
Rating
Opening Time
Min / Max (s)
100
35A & 40A
360,000 s / –
0287xxx.PXCN
2000
110
1A-30A
360,000 s / –
0287xxx.U
500
0287xxx.H
100
135
1A & 2A
3A-40A
350 ms / 600 s
0.750 s / 600 s
0287xxx.L
50
Ordering Information
Time-Current
Characteristic Curves
ATO Ag
(Silver Plated)
32 VDC
1000A @ 32 VDC
-40˚C to +125˚C
-40˚C to +105˚C
Part Number
ATO ® Ag Fuse
0287xxx.PXS
2000
160
1A-40A
250 ms / 50 s
200
1A & 2A
3A-40A
100 ms / 5.0 s
0.150 s / 5.0 s
350
1A & 2A
3A-40A
20 ms / 500 ms
80 ms / 500 ms
600
1A-30A
35A & 40A
– / 100 ms
– / 150 ms
Ratings
Part Number
Temperature Rerating Curve
Current Rating
(A)
Housing
Material Color
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A2s)
0.4
0287001._
1
176
123
0287002._
2
141
53.5
1.4
0287003._
3
137
31.1
7.4
0287004._
4
136
22.8
14
0287005._
5
128
17.85
26
028707.5_
7.5
116
10.91
60
0287010._
10
109
7.70
115
0287015._
15
102
4.80
340
0287020._
20
98
3.38
520
0287025._
25
92
2.52
1080
0287030._
30
84
1.97
1510
0287035._
35
87
1.61
2280
0287040._
40
96
1.44
3310
Dimensions
Dimensions in mm
*Component Level Temperature = the maximum ambient temperature that a
single fuse will survive. This does not factor-in the heat from a populated
fuse box, but does include the heat from the current load with the proper
rerating. **System Level Temperature represents the ambient temperature of
the fuse box at a location within the vehicle. The temperature within a
populated fuse box (in a given location) will be higher. The limiting factor is
the plating. Sn-plating’s temperature limit is ≈130°C, and Ag-plating allows up
to 150°C at the terminal interface.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
7
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Blade Fuses
MAXI Blade Fuses Rated 32V
The MAXI® fuse uses “Diffusion Pill Technology” to provide predictable time delay
characteristics and low heat dissipation.
MAXI Blade Fuses
Specification
MAXI
MAXI Sn
(Silver Plated)
(Tin Plated)
Voltage Rating:
32 VDC32 VDC
Interrupting Ratings:
1000A @ 32 VDC
1000A @ 32 VDC
*Component Level Temperature Range: -40˚C to +125˚C
-40˚C to +105˚C
**System Level Temperature Range:
-40˚C to +105˚C
-40˚C to +85˚C
105°C and 85°C are typical system level temperature requirements.
Terminals:
Ag plated zinc alloy Sn plated zinc alloy
Housing Material:
PA66 PA66
Complies with: SAE J 1888, SAE 2576, SAE J 1888, SAE 2576,
ISO 8820-3:2002(E)
ISO 8820-3:2002(E)
Ordering Information
Package Size
% of Rating
Opening Time Min / Max (s)
0299xxx.ZXNV
1200
100
360,000 s / –
0299xxx.L
50
135
60 s / 1,800 s
0299xxx.TXN
10
200
2 s / 60 s
350
0.20 s / 7 s
600
0.040 s / 1 s
Part Number
MAXI Sn Fuse (tin plated)
Time-Current Characteristics
MAXI Sn Fuse
Time-Current
Characteristic Curves
0299xxx.ZXT
1200
Ratings
Part Number
Current Rating
(A)
Housing
Material Color
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A2s)
0299020._
20
76
3.10
1100
0299025._
25
75
2.39
2087
0299030._
30
77
1.95
4070
0299035._
35
75
1.71
6032
0299040._
40
75
1.42
8450
0299050._
50
73
1.10
11300
0299060._
60
77
0.89
15300
0299070._
70
61
0.64
21200
0299080._
80
62
0.54
43600
Dimensions
Temperature Rerating Curve
Dimensions in mm
*Component Level Temperature = the maximum ambient
temperature that a single fuse will survive. This does not factor-in
the heat from a populated fuse box, but does include the heat from
the current load with the proper rerating. **System Level
Temperature represents the ambient temperature of the fuse box
at a location within the vehicle. The temperature within a populated
fuse box (in a given location) will be higher. The limiting factor is
the plating. Sn-plating’s temperature limit is ≈130°C, and Ag-plating
allows up to 150°C at the terminal interface.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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8
Blade Fuses
MAXI Blade Fuses Rated 58V
The MAXI® style fuse for use in 42V Systems. Same Time-Current characteristic as the 32V
MAXI fuse using “Diffusion Pill Technology” to provide predictable time delay characteristics
and low heat dissipation. Fits into standard MAXI® fuse sockets. Has a rejection feature to
prevent fuses with lower voltage rating from being wrongfully inserted into the circuit. Current
rating 20A - 80A @58 VDC max.
Specifications
Voltage Rating:
58 VDC
Interrupting Ratings:
1000A @ 58 VDC
*Component Level Temperature Range: -40˚C to +125˚C
**System Level Temperature Range:
-40˚C to +105˚C
MAXI Blade Fuses
105°C is a typical system level temperature requirement.
Terminals:
Ag plated zinc alloy
Housing Material:PA66
Complies with: SAE J 1888, SAE 2576
ISO 8820-3:2002(E)
Ordering Information
Part Number
Time-Current
Characteristic Curves
Time-Current Characteristics
Package Size
% of Rating
Opening Time Min / Max (s)
1200
100
360,000 s / –
135
60 s / 1,800 s
0999xxx.ZXN
Ratings
Part Number
Current Rating
(A)
Housing
Material Color
200
2 s / 60 s
350
0.20 s / 7 s
600
0.040 s / 1 s
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A2s)
0999020._
20
76
3.10
1100
0999025._
25
75
2.39
2087
0999030._
30
77
1.95
4070
0999035._
35
75
1.71
6032
0999040._
40
75
1.42
8450
0999050._
50
73
1.10
11300
0999060._
60
77
0.89
15300
0999070._
70
61
0.64
21200
0999080._
80
62
0.54
43600
Dimensions
Temperature Rerating Curve
Dimensions in mm
*Component Level Temperature = the maximum ambient
temperature that a single fuse will survive. This does not
factor-in the heat from a populated fuse box, but does include
the heat from the current load with the proper rerating.
**System Level Temperature represents the ambient
temperature of the fuse box at a location within the vehicle.
The temperature within a populated fuse box (in a given
location) will be higher. The limiting factor is the plating.
Sn-plating’s temperature limit is ≈130°C, and Ag-plating allows
up to 150°C at the terminal interface.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
9
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Cartridge Fuses
littelfuse.com
MCASE+ Cartridge Fuses Rated 32V
11
MCASE™ Cartridge Fuses Rated 32V
13
Low Profile JCASE® Fuse Rated 58V
14
JCASE® Fuse Rated 32V
15
10
Cartridge Fuses
MCASE+™ Cartridge Fuses Rated 32V
The Unslotted MCASE+™ Fuse is a cartridge style fuse up to 40A with female terminals
for 2.8 mm male terminals. The Slotted MCASE+™ Fuse is available in amperages up to
60A and can mate with larger male terminals (e.g., 6.3mm) or even mount directly to onto a
busbar. It has a miniaturized footprint for optimal usage of space. It is a time delayed fuse and
can handle inrush currents.
Specifications
MCASE+™ Cartridge Fuses
Voltage Rating:
Interrupting Ratings:
Operating Temperature Range:
Housing Material:
Cover Material:
Fuse Insertion Force:
Extraction Force:
Conforms to:
32 VDC
1000A @ 32 VDC
-40˚C to +125˚C
PPA-GF33
PA66
50N (11.2lbf) Typical
4N Min. (0.9 lb). | 24.5N Max. (5.5 lb)
SAE 2741 and ISO 8820-4 in reference to electrical, mechanical and environmental performance requirements
Time-Current Characteristics
Ordering Information
Package Size
% of Rating
0695xxx.PXPS Slotted
2000
110
100hrs / –
0695xxx.PXP Unslotted
2000
135
60s / 1800s
Part Number
Ratings
Part Number
Time-Current Characteristic Curves
50A
60A
40A
30A
15A
25A
1000
20A
MCASE FUSE TIME‐CURRENT CHARACTERISTIC CURVES
100
Current Rating*
Housing
(A)
Material Color
Type
0695015.PXP
Unslotted
15
0695020.PXP
Unslotted
20
0695025.PXP
Unslotted
25
0695030.PXP
Unslotted
30
0695040.PXP
Unslotted
40
0695015.PXPS
Slotted
15
0695020.PXPS
Slotted
20
0695025.PXPS
Slotted
25
0695030.PXPS
Slotted
30
0695040.PXPS
Slotted
40
0695050.PXPS
Slotted
50
0695060.PXPS
Slotted
60
Temperature Rerating Curve
TIME IN SECONDS
10
Opening Time Min / Max
200
2s / 60s
350
0.2s / 7s
600
0.04s / 1s
Max. Voltage
Drop (mV)
Cold Resistance
(mΩ)
I2t
(A2s)
125
125
125
120
120
125
125
125
120
120
120
120
5.1
3.4
2.5
1.8
1
310
1300
5.1
310
750
970
1550
3.4
750
2.5
1300
1.8
970
1.1
1550
0.8
4000
0.6
8500
* The performance of the male terminal is critical to ensuring the fuse will function as
designed. The current-carrying capability of the mating terminal must be verified to
ensure proper system operation.
Rerating
Factor
110 %
105 %
1
100 %
0.1
95 %
90 %
0.01
10
100
1000
CURRENT IN AMPERES
CURRENT IN AMPERES
10000
85 %
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
Temperature [oC]
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
11
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Cartridge Fuses
MCASE+™ Cartridge Fuses Rated 32V
Dimensions
Dimensions in mm
Slotted
JCASE®
Fuse
LP JCASE®
Fuse
MCASE+™
Fuse
Unslotted
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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12
Cartridge Fuses
MCASE™ Cartridge Fuses Rated 32V
The MCASE™ is a cartridge style fuse with female terminals for 2.8 mm male terminals. It has
a miniaturized footprint for optimal usage of space. It is a time delayed fuse and can handle in
rush currents.
Specifications
Voltage Rating:
Interrupting Ratings:
Operating Temperature Range:
Housing Material:
Cover Material:
Insertion Force:
Extraction Force:
Conforms to: MCASE™ Cartridge
Fuses
32 VDC
1000A @ 32 VDC
-40˚C to +125˚C
PPA-GF33
PA66
50N (11.2lbf) Typical
4N Min. (0.9 lb). | 24.5N Max. (5.5 lb)
SAE 2741 and ISO 8820-4 in reference to electrical, mechanical and environmental performance requirements
Ordering Information
Part Number
JCASE
LP JCASE
MCASE™
Time-Current Characteristics
Package Size
% of Rating
0695xxx.PX4
2000
110
100 hrs / –
0695xxx.U
500
135
60 s / 1800 s
0695xxx.L
50
200
2 s / 60 s
350
0.2 s / 7 s
600
0.04 s / 1 s
Ratings
Dimensions
Current Rating
(A)
Part Number
Dimensions in mm
Housing
Material Color
Opening Time Min / Max (s)
Max. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A2s)
0695015._
15
125
4.9
160
0695020._
20
125
3.5
530
0695025._
25
125
2.3
1140
0695030._
30
120
1.8
970
0695040._
40
120
1.3
2950
Time-Current
Characteristic Curves
Temperature Rerating Curve
Rerating
Factor
110 %
105 %
100.0
100 %
95 %
10.0
15
90 %
20
Time (s)
25
30
40
85 %
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
Temperature [oC]
1.0
0.1
0.0
1
10
100
1000
Current (A)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
13
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Cartridge Fuses
Low Profile JCASE ® Cartridge Fuses Rated 58V
The Low Profile JCASE® fuse has similar performance characteristics as the standard JCASE®
fuse. The lower overall height reduction allows for more space and weight savings and also
allows for a shorter male blade terminal, saving additional weight and material savings in fuse
box designs.
Specifications
Voltage Rating:
Interrupting Rating:
Operating Temperature Range:
Housing Material:
Cover Material:
Insertion Force:
Extraction Force:
Conforms to: Low Profile JCASE ®
Cartridge Fuses
Time-Current
Characteristic Curves
Part Number
50A
40A
60A
30A
25A
20A
Time-Current Characteristics
Ordering Information
LOW PROFILE (LP) JCASE FUSE TIME-CURRENT CHARACTERISTIC CURVES
1000
58 VDC
1000A @ 58 VDC
-40˚C to + 125˚C
PPA-GF13
PA66
53N Max. (12 lb.)
9N Min (2 lb.)
SAE 2741 and ISO 8820-4 except for the life test – LF specification is 100-hours at 100% of rated current
Package Size
% of Rating
Opening Time Min / Max (s)
0895xxx.Z
2000
100
360,000 s / –
0895xxx.U
500
135
60 s / 1800 s
0895xxx.T
10
200
4 s / 60 s
350
0.200 s / 7 s
600
0.040 s / 1 s
100
Ratings
Part Number
TIME IN SECONDS
10
1
0.1
Current Rating
(A)
Housing
Material Color
Max. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A²s)
0895020_
20
125
4.48
400
0895025_
25
125
3.39
680
0895030_
30
125
2.68
1780
0895040_
40
125
1.89
5470
0895050_
50
125
1.08
4880
0895060_
60
125
0.83
9600
Corresponding holder see Section “Fuse Holders.”
0.01
10
100
1000
10000
CURRENT IN AMPERES
Littelfuse, Inc.
Dimensions
Confidential
October 2013
Temperature Rerating Curve
Dimensions in mm
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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14
Cartridge Fuses
JCASE ® Cartridge Fuses Rated 32V
The JCASE® is a cartridge style fuse with female terminal design. JCASE® provides both
increased time delay and low voltage drop to protect high current circuits. JCASE® has the
ability to handle inrush currents.
Specifications
Voltage Rating:
Interrupting Rating:
Operating Temperature Range:
Housing Material:
Housing Material (60A): Cover Material:
Insertion Force:
Extraction Force:
Complies with: JCASE ®
Cartridge Fuses
40A
Time-Current Characteristics
Ordering Information
Package Size
% of Rating
Opening Time Min / Max (s)
0495xxx.ZXA
2200
110
360,000 s / –
0495xxx.UXA
500
135
60 s / 1800 s
0495xxx.TXA
10
200
4 s / 60 s
350
0.200 s / 7 s
600
0.040 s / 1 s
Part Number
50A
60A
25A
30A
20A
Time-Current
Characteristic Curves
1000
32 VDC
1000A @ 32 VDC
-40˚C to + 125˚C
PA-GF13HS
PA-GF13
PC
53N max. (12 lb.)
9N min. (2 lb.)
SAE 2741, ISO 8820-4
100
Ratings
Part Number
10
1
Current Rating
(A)
Housing
Material Color
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A²s)
1750
0495020_
20
106
4.29
0495025_
25
101
3.28
3220
0495030_
30
91
2.12
1480
0495040_
40
87
1.30
3650
0495050_
50
88
0.99
8750
0495060_
60
87
0.76
19500
0.1
Dimensions
0.01
Dimensions in mm
10
100
1000
10000
Temperature Rerating Curve
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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High Current Fuses
littelfuse.com
ZCase Masterfuse
17
Masterfuse18
ZCase Single Starter
19
MEGA® Fuse Rated 32V
21
MEGA® Low Temperature Fuse Rated 32V
22
UL Recognized Mega® Fuse Rated 32V
24
MIDI® Style Bolt-down Fuse Rated 32V
25
BF1 Fuse Rated 32V
27
BF1 Fuse Rated 58V
29
BF2 Fuse Rated 32V
30
BF2 Fuse Rated 58V
31
CF Fuse Rated 58V
32
Fuse Strips
33
16
High Current Fuses
ZCASE Masterfuse
The ZCASE Masterfuse product is the smallest high current distribution product in the industry.
It utilizes the Z-Axis effectively to create a compact design which takes one third the footprint
of a traditional solution. This package allows the user to replace multiple discrete fuses in a
power distribution box with a single component, thus eliminating additional bolts, bus bars and
interconnects. The output bolt is integrated into the fuse creating a reliable interface to the
mating terminal due to its high torque withstandablity. Keying features are available on each
bolt position to ensure the correct mating ring terminal is used during assembly. The solution
can also be connectorized to mate to high current terminals. This compact design enables the
integration of the high current distribution into the main junction box due to its small footprint.
This eliminates the need for a separate fuse box for high current distribution. By reducing the
number of components required, overall system costs are reduced.
ZCASE Masterfuses
The ZCASE Masterfuse product is available as a standard design with customized fuse ratings.
The modular manufacturing approach enables a wide range of configurations within a product
family. In addition, the form factor can be fully customized for specific applications to further
optimize the system. Contact Littelfuse to review your application needs.
Features and Benefits:
Miniaturization: Compact design enables a 2/3 footprint reduction when compared to a
traditional solution.
Integration: Enables the integration of the prefuse function into the main junction box due to
its small footprint.
Specifications
Mating Terminal Options:M10, M8, M6, M5 bolt-down connections or female terminals
Operating Temperature Range:-40°C to 125°C
Housing Material: PPA-GF33HS
Fuse Ratings Available:30-500A
Voltage Rating: 32Vdc
Materials:Copper terminals (silver or tin plating options available)
Complies with: ISO 8820-5
Ordering Information
Part Number
Description
Package Size
05980015Z-CN
MFUSE ZCASE 32V 2-Way 125A - 200A
200
05980016Z-CN
MFUSE ZCASE 32V 2-Way 125A - 125A
200
05980017Z-CN
MFUSE ZCASE 32V 2-Way 275A - 200A
200
05980019Z
MFUSE ZCASE 32V 1-MEGA + 4-MIDI
100
05980020Z
MFUSE ZCASE 32V 2-MEGA + 2-MIDI
50
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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High Current Fuses
MASTERFUSE
The MASTERFUSE product is a configurable fuse solution combining several different fuse
types (i.e. MEGA and MIDI) and ratings in one compact package. This fuse package allows the
user to replace multiple discrete fuses in a power distribution box with a single component,
thus eliminating additional bolts, bus bars, and interconnects that are currently used. By
reducing the number of connections required, overall system reliability is increased while cost
is decreased.
Each MASTERFUSE is customized to the user’s application creating an optimized circuit
protection package. Contact Littelfuse to review your application needs.
Features and Benefits:
Masterfuses
Increased Reliability: due to reduced number of terminal interfaces
System Cost Savings: Material savings due to reduced number of components required. Assembly cost savings due to reduced number of operations required for installation.
Fuse Array Customization: Ability to mix different fuse types (i.e. MEGA, MIDI, etc.)
in one compact package
Termination Options: Ability to mate to female terminals to enable “bolt-less” design
Marking:
Custom marking options available
Specifications
Mating Terminal Options:M10, M8, M6, M5 bolt-down connections or female terminals
Operating Temperature Range:-40°C to 125°C
Housing Material: PPA-GF33HS
Fuse Ratings Available:30A-250A Full Range
300A-600A Short Circuit
Voltage Rating: 32Vdc
Materials:Copper terminals (silver or tin plating options available)
Complies with: ISO 8820-5
Note: Short circuit protected fuses have a limited continious current.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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18
High Current Fuses
ZCASE Single MEGA/Starter Fuse
The Single ZCASE is a Minimal Footprint Bolt Down Fuse with a wide rating range up to
600A in the same packaging size. The Time Current characteristic is similar to the well known
MEGA Design and can used as full wire protection until 250A. Higher ratings mostly used for
typically Starter Fuse application as a protector fuse. The fuse design is optimized for a one
bolt connection M6 (40A - 250A) or M8 (300A - 600A) and can used directly on a battery post
or busbar connection. Littelfuse is offering a complete solution for the necessary stud and
different busbar connections including some battery clamps.
Specifications
ZCASE Single Mega/Starter
Fuse
Operating temperature:
Housing Material:
Insulating Tube: Terminal: Voltage Rating:
Interrupting Rating:
Mounting Torque M6: Mounting Torque M8: -40 to 125°C
PPA-GF33HS
Out of ceramic
Tin plated Copper
32V DC
2000A @ 32V VDC
9.8Nm±1.4Nm
14Nm±2Nm
Ordering Information
Part Number
Time-Current Characteristics
Package Size
3298XXX.ZXSTA
480
3298XXX.Z
480
3298XXX.H
100
Opening Time Min / Max (s)
% of Rating
40A - 250A
300A - 600A
50
–/–
14,400 / –
100
14,400 / –
–/–
135
120 / 1800
–/–
200
1 / 15
1 / 40
350
0.300 / 5
0.300 / 5
500
–/–
0.100 / 1 (only for 500A)
600
0.100 / 1
0.100 / 1 (except 600A)
Ratings
Part number
Current Rating Wire size
(A)
(mm2)
Max. Voltage Drop
(mV)
Average Cold Resistance
(mΩ)
I²t
(A2s)
3298040._
40
4
110
1.53
5000
3298060._
60
6
110
0.98
18000
3298080._
80
10
110
0.715
15500
3298100._
100
16
110
0.57
31000
3298125._
125
16
110
0.39
45000
3298150._
150
25
110
0.32
75000
3298175._
175
25
110
0.26
140000
3298200._
200
35
110
0.231
235000
3298225._
225
35
110
0.175
95000
3298250._
250
50
110
0.167
160000
3298300.ZXSTA
300
35
70
0.128
310000
3298350.ZXSTA
350
35
70
0.103
570000
3298400.ZXSTA
400
50
70
0.084
870000
3298500.ZXSTA
500
50
70
0.065
1550000
3298600.ZXSTA
600
50
70
0.049
3000000
3298900._
SHUNT
50
-
-
-
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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High Current Fuses
ZCASE Single Mega/Starter Fuse
Dimensions
Examples of Single ZCASE Applications
Dimensions in mm
1
2
3
No.
1
2
3
Please contact your Littelfuse representative
for application support and information on
mating hardware.
Time-Current Characteristic Curves
Reference Time-Current Characteristic Curves (Recorded@23˚)
Description
Single ZCASE Mega
Busbar PN: 3298002ZXBB
Insulting Bolt M8 PN: 3298001ZXM8
Reference Time-Current Characteristic Curves (Recorded@23˚)
All ZCASE Starters T/C curves were
performed on the left or right side of
the metal bar as shown in pictures
above. A 50mm² Cu wire was mounted
at the mid hole (M8) of the metal bar
as current feed.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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20
High Current Fuses
MEGA® Low Temperature Fuse Rated 32V
The MEGA® Fuse is designed for high current circuit protection up to 275A with “Diffusion
Pill Technology.” The MEGA® Fuse also provides time delay characteristics. Designed
and patented by Littelfuse, the MEGA® Fuse is ideal for battery and alternator protection
application and other heavy gauge cables requiring ultra-high current protection.
Specifications
Interrupting Rating:
2000A @ 32 VDC
Voltage Rating:
32 VDC
Operating Temperature Range: -40˚C to + 125˚C
Housing Material: PPA-GF33HS
Terminals:Copper (Silver plated copper available)
M8 bolts
Mounting Torque:
12-18 Nm M8
MEGA ® Low Temperature Fuses
Ordering Information
Time-Current Characteristics
Part Number
Package Size
Plating
Rating
0298125.ZXBLT
500
Ag
125
0298xxx.ZXEH-LT
500
none
150 - 275
% of Rating
Opening Time Min / Max (s)
125
150-275
100
4 hrs / –
4 hrs / –
135
120 s / 1800 s
120 s / 1800 s
200
1 s / 50 s
1 s / 150 s
350
0.300 s / 5 s
0.300 s / 5 s
600
0.100 s / 1 s
0.100 s / 1 s
Ratings
Time-Current Characteristic Curves
1000
125
150
175
200
225
100
250
Part Number
Current Rating
(A)
Font Color
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A2s)
57000 A
0298125.ZXBLT
125
67
0.330
0298150.ZXEH-LT
150
62
0.258
59000 A
0298175.ZXEH-LT
175
65
0.232
123000 A
0298200.ZXEH-LT
200
61
0.214
140000 A
0298225.ZXEH-LT
225
57
0.177
317000 A
0298250.ZXEH-LT
250
54
0.144
637000 A
0298275.ZXEH-LT
275
53
0.122
800000 A
275
TIME IN SECONDS
Dimensions
Temperature Rerating Curve
Dimensions in mm
10
29.2 (1.15")
1
9.9 (.39")
0.1
100
1000
10000
CURRENT IN AMPERES
Last figure of article no. = packaging code
Corresponding holder see Section “Fuse Holders.”
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
21
littelfuse.com
High Current Fuses
MEGA® and MEGA® Clear Top Fuse Rated 32V
The MEGA® Fuse is designed for high current circuit protection up to 500A with “Diffusion
Pill Technology.” The MEGA® Fuse also provides time delay characteristics. Designed
and patented by Littelfuse, the MEGA® Fuse is ideal for battery and alternator protection
application and other heavy gauge cables requiring ultra-high current protection.
Specifications
MEGA ® Fuses
Interrupting Rating: 2000A @ 32 VDC
Voltage Rating: 32 VDC
Operating Temperature Range: -40˚C to + 125˚C
Housing Material: PPA-GF33HS
Clear Top Housing Material: PES (top) PPA-GF33HS (bottom)
Terminals:Copper (Silver plated copper available)
M6 or M8 bolts available
Mounting Torque: 8-14 Nm M6
12-18 Nm M8
Complies with: ISO 8820-5
Time-Current Characteristics
Ordering Information
Part Number
MEGA Clear Top Housing Fuse
®
Package
Bolt
Plating
Size
Size
Rating
0298xxx.ZXH
500
none
M8
300 - 500
0298xxx.ZXEH
500
none
M8
80 - 250
0298xxx.ZXB
500
Ag
M8
40 - 250
0298xxx.ZXA
500
none
M6
80 - 500
M8
40 - 250
% of Rating
0298xxx.UXT
500
none
40-250
300-500
–/–
14,400 s / –
100
14,400 s / –
–/–
135
120 s / 1800 s
–/–
200
1 s / 15 s
1 s / 15 s
350
0.300 s / 5 s
0.500 s / 5 s
600
0.100 s / 1 s
0.100 s / 1 s
75
MEGA Clear Top Housing Material Fuse
Opening Time Min / Max (s)
Ratings
Part Number
Current Rating
(A)
Font Color*
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2t
(A2s)
0298040._1
40
–
132
2.510
8700
1
0298060._
60
–
119
1.504
21000
0298080._
80
87
0.720
21500
0298100._
100
87
0.562
31100
0298125._
125
80
0.423
57800
0298150._
150
92
0.352
100000
0298175._
175
86
0.294
168000
0298200._
200
83
0.257
204000
0298225._
225
82
0.222
257000
0298250._
250
82
0.201
389000
2
0298300._
300
74 **
0.167
315000
0298350._2
350
68 **
0.138
500000
0298400._2
400
64 **
0.126
610000
0298450._2
450
60 **
0.112
1050000
0298500._2
500
58 **
0.092
2050000
Note 1: Not mentioned in ISO standards Note 2: Short Circuit Protector only
* 0298xxx.ZXB has white font color on all ratings.
** Voltage Drop measurements for short circuit protectors taken at 75% of rated current.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
littelfuse.com
22
High Current Fuses
MEGA® Fuse Rated 32V
Time-Current Characteristic Curves
Dimensions
Dimensions in mm
M6: 6.60 (.26")
M8: 8.64 (.34")
29.2 (1.15")
9.9 (.39") 40-250A
10.72 (.422") 300-500A
40-250A
1.83 (.072 ) 300-500A
Temperature Rerating Curve
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
23
littelfuse.com
High Current Fuses
UL Recognized MEGA® Fuses Rated 32V
The MEGA® Fuse is designed for high current circuit protection with “Diffusion Pill
Technology.” The MEGA® Fuse also provides time delay characteristics. Designed and
patented by Littelfuse, the MEGA® Fuse is ideal for battery and alternator protection
application and other heavy gauge cables requiring ultra-high current protection.
Specifications
Interrupting Rating:
2000A @ 32 VDC
Voltage Rating:
32 VDC
Operating Temperature Range: -40˚C to + 125˚C
Housing Material:
PPA-GF30FR
Terminals:Copper
M8 bolts holes
Mounting Torque:
12-18 Nm M8
Complies with:
ISO 8820-5 ,UL 248 Special Purpose Fuses
UL Recognized MEGA ® Fuses
Ordering Information
7
Time-Current
Characteristic Curves
Time-Current Characteristics
Part Number
Package Size
0298xxx.ZXEH-UL
500
Opening Time Min / Max (s)
% of Rating
80A-175A
75
–/–
100
14,400 s / –
135
120 s / 1800 s
200
1 s / 15 s
350
0.300 s / 5 s
500
–/–
600
0.100 s / 1 s
Ratings
Typ. Voltage Drop
(mV)
I2t
(A2s)
80
87
21500
0298100.ZXEH-UL
100
87
31100
0298125.ZXEH-UL
125
80
57800
0298150.ZXEH-UL
150
92
100000
0298175.ZXEH-UL
175
62
168000
Part Number
Current Rating
(A)
0298080.ZXEH-UL
Dimensions
Font Color
Temperature Rerating Curve
Dimensions in mm
29.2 (1.15")
9.9 (.39")
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
littelfuse.com
24
High Current Fuses
MIDI®, Clear MIDI®, and One Hole MIDI® Style Bolt-down Fuse
Rated 32V
This MIDI® style fuse offers a bolt-on space saving fuse for high current wiring protection
and provides time delay characteristics with “Diffusion Pill Technology”. The MIDI® was
designed and patented by Littelfuse.
Specifications
Interrupting Rating:
Voltage Rating:
Operating Temperature Range: Black Housing Material:
Clear Housing Material:
Terminal: Mounting Torque M5:
Mounting Torque M6:
Complies with:
MIDI ® Fuses
Clear MIDI ® Fuses
1000A @ 32 VDC
32 VDC
-40˚C to + 125˚C
PA-GF25FR
PA-6/66
Tin plated Copper
4.5 Nm +/- 1Nm
6.0 Nm +/- 1Nm
ISO 8820-5, UL 248 Special Purpose Fuses
One Hole MIDI ® Fuses
(transparent nylon
composite cover)
Time-Current Characteristics
Ordering Information
Package
Size
Housing
Color
Bolt
Size
Bolt Hole
Qty
Mfg Location
0498xxx.M
1000
Black
M5
2
Mexico
Part Number
% of Rating
Opening Time Min / Max (s)
30-125A
150-200A
0498xxx.M-CN
1000
Black
M5
2
China
75
–/–
360,000 s / –
0498xxx.H
100
Black
M5
2
Mexico
100
360,000 s / –
–/–
0498xxx.MXM6
1000
Black
M6
2
Mexico
110
14,400 s / –
–/–
0498xxx.MXM6-CN
1000
Black
M6
2
China
0498xxx.MX1M5
1000
Black
M5
1
Mexico
150
90 s / 3,600 s
–/–
0498xxx.MX1M5-CN
1000
Black
M5
1
China
200
3 s / 100 s
1 s / 15 s
0498xxx.MX1M6
1000
Black
M6
1
China
300
350
0.3 s / 3 s
–/–
–/–
0.3 s / 5 s
0498xxx.MX1M6-CN
1000
Black
M6
1
China
500
0.1 s / 1 s
0.1 s / 1 s
0498xxx.MXT
1000
Clear
M5
2
Mexico
0498xxx.MXT-CN
1000
Clear
M5
2
China
0498xxx.MXTM6
1000
Clear
M6
2
Mexico
0498xxx.MXTM6-CN
1000
Clear
M6
2
China
* Materials manufactured in Asia are produced to the same specifications as materials manufactured in North America, and
meets the same test requirements. Multiple production locations are for capacity expanison only.
Ratings
Part Number
0498023._2
0498030._2
0498040._
0498050._
0498060._
0498070._
0498080._
0498100._
0498125._2
0498150._1,2
0498175._1,2
0498200._1,2
Current
Rating
(A)
23
30
40
50
60
70
80
100
125
150
175
200
Font
Color
Typ. Voltage Drop
max. (mV)
90
65
65
65
68
70
58
60
71
77
77
77
Cold
Resistance
(mΩ)
3.43
2.06
1.398
1.025
0.865
0.72
0.541
0.457
0.394
0.323
0.285
0.261
I2t
(A2s)
1,800
4,200
10,000
13,000
21,700
24,000
24,600
51,300
73,200
81,900
100,000
125,000
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
25
littelfuse.com
High Current Fuses
MIDI®, Clear MIDI®, and One Hole MIDI® Style Bolt-down Fuse Rated 32V
Dimensions
Dimensions in mm
Temperature Rerating Curve
MIDI Rerating Curve
115
Rerating Factor (% Rated Current)
110
105
100
95
90
85
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
Ambient Temperature (C)
“B”
mm (inch)
“C”
mm (inch)
0498030._
0.41 (0.016)
4.0 (0.157)
8.0 (0.315)
0498040._
0.41 (0.016)
4.0 (0.157)
8.0 (0.315)
0498050._
0.41 (0.016)
4.0 (0.157)
8.0 (0.315)
0498060._
0.41 (0.016)
4.0 (0.157)
8.0 (0.315)
0498070._
0.41 (0.016)
4.0 (0.157)
8.0 (0.315)
0498080._
0.41 (0.016)
4.0 (0.157)
8.0 (0.315)
0498100._
0.63 (0.025)
4.3 (0.169)
8.3 (0.327)
0498125._
0.63 (0.025)
4.3 (0.169)
8.3 (0.327)
0498150._
0.63 (0.025)
4.3 (0.169)
8.3 (0.327)
0498175._
0.63 (0.025)
4.3 (0.169)
8.3 (0.327)
0498200._
0.63 (0.025)
4.3 (0.169)
8.3 (0.327)
Time-Current Characteristic Curves
30A
40A
50A
60A
70A
80A
100A
125A
150A
175A
200A
“A”
mm (inch)
1000
100
TIME IN SECONDS
Part
Number
10
1
0.1
0.01
10
100
1000
10000
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
littelfuse.com
26
High Current Fuses
BF1 and One-Hole BF1 Fuse Rated 32V
This BF1 fuse is rated at 32V and offers a bolt-on fuse for high current wiring
protection. Current rating 23A - 200A; with transparent housing material for easy
detection of blown fuses. One-Hole BF1 fuses have a current rating 60-125A.
Specifications
BF1 Fuses
Operating Temperature:
-40 to 125 degrees C
Housing Material: PET-GF30
Clear Housing Material:
PES
Terminals: Copper alloy, gal. Sn
2 x M5 or M6 bolts, distance 30 mm
Mounting Torque M5:
4.5 Nm +/- 1Nm
Mounting Torque M6:
6.0 Nm +/- 1Nm
Interrupting Rating:
23A & 30A:
1000A @32 VDC
40A - 150A:
2000A @32 VDC
200A:
1500A @32 VDC
Complies with:
ISO 8820-5, UL 248 Special Purpose Fuses
Time-Current Characteristics
Ordering Information
One Hole BF1 Fuses
Part Number
Package
Size
153.5631.xxx2
1000
Bolt Bolt Hole
Size
Qty
Ratings
M5
2
30A-200A
% of
Rating
Opening Time Min / Max (s)
23-150A Fuses
150-200A Short
Circuit Protectors
153.5631.xxx1
10
M5
2
30A-200A
75
–/–
360,000 s / –
153.7010.xxx2
1000
M6
2
30A-150A
100
360,000 s / –
–/–
153.7000.xxx2
500
M6
2
200A
110
14,400 s / –
–/–
153.0010.xxx2
1000
M6
1
60A-125A
150
90 s / 3,600 s
–/–
153.0020.xxx2
500
--
0
30A-200A
200
3 s / 100 s
1 s / 15 s
300
0.300 s / 3 s
–/–
350
–/–
0.300 s / 5 s
500
0.100 s / 1 s
–/–
600
–/–
0.100 s / 1 s
Ratings
M6
-
23
105
3.50
1,400
153.7010.530_
30
105
2.70
5,100
6,800
M5
153.5631.523_
1,2
153.5631.530_
Typ. Voltage
Cold Resistance
Drop
(mΩ)
(mV)
Current
Rating
(A)
Part Number
Housing
Material Color
I2t
(A2s)
153.5631.540_
153.7010.540_
40
90
1.56
153.5631.550_
153.7010.550_
50
80
1.03
6,900
153.5631.560_
153.7010.560_
60
75
0.75
16,200
153.5631.570_
153.7010.570_
70
70
0.64
22,000
153.5631.580_
153.7010.580_
80
70
0.55
25,600
153.5631.610_
153.7010.610_
100
70
0.44
42,500
153.5631.612_
153.7010.612_
125
70
0.34
62,500
153.5631.615_1
153.7010.615_1
150
70
0.29
83,400
153.5631.620__
153.7000.620__
200
70
0.24
126,000
3
3
Corresponding holder see Section “Fuse Holders.”
Note 1: not mentioned in ISO standard Note 2: Not UL rated Note 3: Short Circuit Protector only Note 4: For
1-Hole and No-Hole values, refer to 2-Hole version values
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
27
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High Current Fuses
BF1 and One-Hole BF1 Fuse Rated 32V
Dimensions
Pre-Arcing Time-Limits
Dimensions in mm
Derating
Individual derating curves by rating can be ordered through
your Littelfuse contact person.
23 A - 150 A: FI = 1.25 (max. operating current: 0.8 x Irat at 23°C)
200 A: FI = 2.00 (max. operating current: 0.5 x Irat at 23°C)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
littelfuse.com
28
High Current Fuses
BF1 Fuses Rated 58V
This BF1 fuse is rated at 58V and offers a bolt-on fuse for high current wiring
protection. Current rating 30A - 200A; with transparent housing material for easy
detection of blown fuses.
Specifications
Operating temperature:
Housing Material:
Clear Housing Material:
Terminals:
Mounting Torque M5:
Mounting Torque M6:
Interrupting Rating:
Complies with:
Dimensions
Dimensions in mm
-40 to 125 degrees C
PET-GF30
PES
Copper alloy, gal. Sn
2 x M5 or M6 bolts, distance 30 mm
4.5 Nm +/- 1Nm
6.0 Nm +/- 1Nm
1000A @ 58 VDC
ISO 8820-5, UL 248 Special Purpose Fuses
Ordering Information
Time-Current Characteristics
Part Number
Package
Size
142.5631.xxx2
500
M5
2
142.7010.xxx2
500
M6
1
0
142.7020.xxx2
500
Bolt Bolt Hole
Size
Qty
M6
% of
Rating
Pre-Arcing Time-Limits
Opening Time Min / Max (s)
30-150A Fuses
200A Short Circuit Protectors
75
–/–
360,000 s / –
100
360,000 s / –
–/–
110
14,400 s / –
–/–
150
90 s / 3,600 s
–/–
200
3 s / 100 s
1 s / 15 s
300
0.300 s / 3 s
–/–
350
–/–
0.300 s / 5 s
500
0.100 s / 1 s
–/–
600
–/–
0.100 s / 1 s
Ratings
Cold
Typ. Voltage
Resistance
Drop
(mΩ)
(mV)
Part Number M5
Part Number M6
Current
Rating
(A)
142.5631.53021
142.70xx.53021
30
105
2.70
5,100
142.5631.5402
142.70xx.5402
40
90
1.56
6,800
142.5631.5502
142.70xx.5502
50
80
1.03
6,900
142.5631.5602
142.70xx.5602
60
75
0.75
16,200
142.5631.5702
142.70xx.5702
70
70
0.64
22,000
142.5631.5802
142.70xx.5802
80
70
0.55
25,600
142.5631.6102
142.70xx.6002
100
70
0.44
42,500
142.5631.6122
142.70xx.6122
125
70
0.34
62,500
142.5631.6152
142.70xx.6152
150
70
0.29
83,400
142.5631.6202
142.70xx.6202
200
70
0.24
126,000
2
Housing
Material Color
I2t
(A2s)
Note 1: Not UL rated Note 2: Short Circuit Protector only
Derating
30 A - 150 A: FI = 1.25
(max. operating current:0.8 x Irat at 23°C)
200 A: FI = 2.00
(max.operating current: 0.5 x Irat at 23°C)
Individual derating curves by rating can be ordered through your Littelfuse contact person.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
29
littelfuse.com
High Current Fuses
BF2 Fuses Rated 32V
This BF2 fuse is rated at 32V and offers a bolt-on fuse for high current wiring protection.
Current rating 100A - 500A; with transparent housing material for easy detection of
blown fuses.
Specifications
Housing Material:
Clear Housing Material:
Terminal: Mounting Torque:
Breaking Capacity: Complies with:
PET-GF30
PES
Copper alloy, gal. Sn
2 x M8 bolts, Distance 51 mm
12.0 Nm +/- 1Nm
100 A - 300 A: 2.000 A, 32V, DC
400 A - 500 A: 1.500 A, 32V, DC
ISO 8820-5, UL 248 Special Purpose Fuses
BF2 Fuses
Ordering Information
Part Number
Time Current Characteristics
Package Size
% of Rating
Standard M8 Holes
153.5395.xxxx
200
M6 Holes
153.7011.xxxx
200
Ratings
Time-Current Characteristic Curves
TIME-CURRENT CHARACTERISTIC CURVES (RECORDED@23°C)
Part Number
M8 Holes
100A
125A
150A
175A
200A
225A
250A
300A
400A
500A
1000
TIME [s]
100
10
100A - 250A
300A - 500A
75
–/–
4h/–
100
4h/–
–/–
135
120 s / 1,800 s
–/–
200
1 s / 15 s
1 s / 15 s
350
0.300 s / 5 s
0.500 s / 5 s
600
0.100 s / 1 s
0.100 s / 1 s
Current
Rating
(A)
Part Number
M6 Holes
Opening Time Min / Max (s)
Housing
Color
Typ. Voltage Drop Cold Resistance
(mV)
(mΩ)
I2t
(A2s)
153.5395.610_
153.7011.610_
100
110
0.70
46,800
153.5395.612_
153.7011.612_
125
110
0.52
118,100
153.5395.615_
153.7011.615_
150
110
0.42
113,400
153.5395.617_
153.7011.617_
175
110
0.36
154,400
153.5395.620_
153.7011.620_
200
110
0.34
288,000
153.5395.622_
153.7011.622_
225
110
0.29
236,000
153.5395.625_
153.7011.625_
250
110
0.25
292,500
153.5395.630_*
153.7011.630_*
300
110
0.21
486,000
153.5395.640_*
153.7011.640_*
400
110
0.13
964,000
153.5395.650_*
153.7011.650_*
500
110
0.12
1,449,000
Last figure of article no. = packaging code
Corresponding holder see Section “Fuse Holders.”
* Parts with asterisk are short circuit protectors only.
1
Dimensions
Dimensions in mm
0,1
10
100
1000
10000
CURRENT [A]
100A-300A: FL=1,25 (max. operating current: 0,8 x Irat at 23°C)
400A-500A: FL=2,00 (max. operating current: 0,5 x Irat at 23°C)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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30
High Current Fuses
BF2 Fuses Rated 58V
This BF2 fuse is rated at 58V and offers a bolt-on fuse for high current wiring protection.
Current rating 100A - 300A; with transparent housing material for easy detection of
blown fuses.
Specifications
Housing Material:
Clear Housing Material:
Terminal: Mounting Torque:
Breaking Capacity: Complies with:
PET-GF30
PES
Copper alloy, gal. Sn
2 x M8 bolts, Distance 51 mm
12.0 Nm +/- 1Nm
1000A, 58V DC
ISO 8820-5, UL 248 Special Purpose Fuses
BF2 Fuses
Time Current Characteristics
Ordering Information
Package Size
142.5395.xxxx
200
Ratings
100A
125A
150A
175A
200A
225A
250A
300A
400A
500A
Time-Current
Characteristic Curves
TIME-CURRENT CHARACTERISTIC CURVES (RECORDED@23°C)
1000
100
TIME [s]
Part Number
10
Part Number
Current Rating
(A)
142.5395.6102
142.5395.6122
% of Rating
Opening Time Min / Max (s)
100A - 250A
300A
75
–/–
–/–
100
4h/–
4h/–
135
120 s / 1,800 s
–/–
200
1 s / 15 s
1 s / 15 s
350
0.300 s / 5 s
0.500 s / 5 s
600
0.100 s / 1 s
0.100 s / 1 s
I2t
(A2s)
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
100
110
0.70
46,800
125
110
0.52
118,100
142.5395.6152
150
110
0.42
113,400
142.5395.6172
175
110
0.36
154,400
142.5395.6202
200
110
0.34
288,000
142.5395.6222
225
110
0.29
236,000
142.5395.6252
250
110
0.25
292,500
142.5395.6302¹
300
110
0.21
486,000
Housing Color
Dimensions
Dimensions in mm
1
0,1
10
100
1000
10000
CURRENT [A]
100A-300A: FL=1,25 (max. operating current: 0,8 x Irat at 23°C)
400A-500A: FL=2,00 (max. operating current: 0,5 x Irat at 23°C)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
31
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High Current Fuses
CF Fuses Rated 58V
Main Fuse for mounting with battery clamp on the battery pole. Voltage rating 58
VDC, Current rating 50A - 300A. With transparent cover material for visual inspection of
melting element.
Specifications
Insulating Body Material:
Ceramic
Cover Material: PES
Visible melting-element
Interrupting Rating:
2,000A @58 VDC
Complies with:
ISO 8820-6, DIN 72581-5, UL 248 Special Purpose Fuses
cULus Recognized:File No. E211637
CF Fuses
Time-Current Characteristics
Ordering Information
Part Number
Package Size
% of Rating
Opening Time Min / Max (s)
155.0892.xxx1
100
100
360,000 s / –
135
– / 3,600 s
Ratings
Dimensions
150
1 s / 600 s
200
0.200 s / 60 s
300
0.050 s / 1.5 s
400
0.020 s / 0.50 s
600
– / 0.20 s
Part Number
Current Rating
(A)
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I2 t
(A2s)
155.0892.5501
50
100
1.20
1,900
Dimensions in mm
155.0892.5751
75
90
0.60
12,000
155.0892.6101
100
80
0.60
14,000
155.0892.6121
125
75
0.45
51,000
155.0892.6151
150
70
0.35
63,800
155.0892.6171
175
70
0.25
120,000
155.0892.6201
200
65
0.25
172,800
155.0892.6251
250
70
0.20
330,000
155.0892.6301
300
70
0.15
372,000
Insert CF8-Fuse links only in conjunction with the insulating nuts, see Section “Fuse Holders.”
Corresponding battery clamp see Section “Fuse Holders.”
Pre-Arcing Time-Limits
FI = 1.25 (max. operating current:
0.8 x Irat at 23°C)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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32
High Current Fuses
Fuse Strips with Housing Rated 36V - SPECIAL PURPOSE FUSES
(NOT INTENDED FOR AUTOMOTIVE or TRUCK APPLICATIONS)
Housed fuse strips with window for visual inspection of melting element. Current rating 30A 150A, 36 VDC. 90° fork type lugs.
Specifications
Voltage Rating: Interrupt Ratings:
Operating Temperature Range: Insulating Body:
Metal Parts:
Complies with:
36 VDC
up to 375A
-40° to 125°C
Out of ceramic
Zinc-alloy
DIN 72581/2
Time-Current Characteristics
Ordering Information
Part Number
156.5611.xxx1
Package Size
% of Rating
Opening Time Min / Max (s)
50
130
3,600 s / –
250
– / 60 s
Ratings
Pre-Arcing Time-Limits
Part Number
Current Rating
(A)*
Typ. Voltage Drop
(mV)
Material Thickness “S”
(mm)
156.5611.5301
30
70
0.25
156.5611.5401
40
70
0.20
156.5611.5501
50
70
0.25
156.5611.5601
60
70
0.40
156.5611.5701
70
70
0.45
156.5611.5801
80
70
0.50
156.5611.6101
100
70
0.70
156.5611.6111
120
70
0.70
156.5611.6121
125
70
0.70
156.5611.6151
150
70
1.00
Corresponding holder see Section “Fuse Holders.”
*Metal parts in compliance with DIN 72581/2. Fuses with housings not mentioned in the standards.
Dimensions
Dimensions in mm
S
FI = 1.00 (max. operating current : 1.0 x Irat at 23°C)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
33
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High Current Fuses
Fuse Strips Rated 48V - SPECIAL PURPOSE FUSES
(NOT INTENDED FOR AUTOMOTIVE OR TRUCK APPLICATIONS)
Non-housed fuse strips for battery powered fuses rated at 48VDC. 90º and
straight fork type lugs.
Specifications
Voltage Rating: Interrupt Ratings:
Operating Temperature Range: -
Metal Parts:
Complies with:
48 VDC
up to 3000A
-40° to 125°C
35 A - 80 A: Zinc-alloy
100A - 500 A: Copper Cu, gal. Sn
DIN 43560-1
Time-Current Characteristics
Ordering Information
Part Number
Dimensions
Package Size
157.5700.xxx1
50
157.5916.xxx1
50
% of Rating
Dimensions in mm
a
S
a
Pre-Arcing Time-Limits
FI = 1.00 (max. operating
current:1.0 x Irat at 23°C)
Opening Time Min / Max (s)
35-200
225 - 500
150
3,600 s / –
–/–
160
–/–
60 s / –
220
– / 60 s
250
0.8 s / 10 s
400
0.20 / 2 s
Ratings
Part Number
a = 11 mm
a = 9 mm*
157.5700.5351
157.5700.5401
157.5700.5501
157.5700.5631
157.5700.5801
157.5700.6101
157.5700.6121
157.5700.6131
157.5700.6141
157.5700.6151
157.5700.6161
157.5700.6171
157.5700.6201
157.5700.6231
157.5700.6251
157.5700.6271
157.5700.6301
157.5700.6331
157.5700.6351
157.5700.6401
157.5700.6421
157.5700.6501
157.5916.5351
–
157.5916.5501
157.5916.5631
157.5916.5801
157.5916.6101
157.5916.6121
157.5916.6131
–
–
157.5916.6161
–
157.5916.6201
–
157.5916.6251
–
–
–
–
–
–
–
Current Typ. Voltage
Drop
Rating
(A)
(mV)
35
40
50
63
80
100
125
130
135
150
160
175
200
225
250
275
300
325
355
400
425
500
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
Breaking Capacity
(VDC/A)
Material
Thickness “S”
(mm)
48/210
48/240
48/300
48/378
48/480
48/600
48/750
48/780
48/810
48/900
48/960
48/1050
48/1200
48/1350
48/1500
48/1650
48/1800
48/1950
48/2130
48/2400
48/2550
48/3000
0.6
0.6
0.6
0.6
0.6
0.5
0.8
0.8
0.8
0.8
1.0
1.0
0.8
0.5
0.5
0.8
0.8
0.8
0.8
0.8
1.0
1.0
Corresponding holders = 177.5701.0001 and 177.5702.0001.”
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
littelfuse.com
34
High Current Fuses
Fuse Strips with Housing Rated 48V - SPECIAL PURPOSE FUSES
(NOT INTENDED FOR AUTOMOTIVE OR TRUCK APPLICATIONS)
Housed fuse strips for battery-powered vehicles. Current rating 35A - 500A, 48 VDC. 90°
and straight fork type lugs. With window for visual inspection of melting element.
Specifications
Voltage Rating: Interrupt Ratings:
Operating Temperature Range: Metal Parts:
Complies with:
cULus Recognized:
48 VDC
up to 3000A
-40° to 125°C
35A - 80A: Zinc-alloy
100A - 500A: Copper Cu, gal. Sn
UL 248 Special Purpose Fuses
File No. E211637
Time-Current Characteristics
Ordering Information
Part Number
Package Size
Dimensions
157.5701.xxx1
50
Dimensions in mm
157.5917.xxx1
50
% of Rating
a
S
Ratings
a
Part Number
Glass Cover
Pre-Arcing Time-Limits
FI = 1.00 (max. operating
current: 1.0 x Irat at 23°C)
a = 11 mm
157.5701.5351
157.5701.5401
157.5701.5501
157.5701.5631
157.5701.5801
157.5701.6101
157.5701.6121
157.5701.6131
157.5701.6141
157.5701.6151
157.5701.6161
157.5701.6171
157.5701.6201
157.5701.6231
157.5701.6251
157.5701.6271
157.5701.6301
157.5701.6331
157.5701.6351
157.5701.6401
157.5701.6421
157.5701.6501
a = 9 mm*
157.5917.5351
–
157.5917.5501
157.5917.5631
157.5917.5801
157.5917.6101
157.5917.6121
–
–
157.5917.6151
157.5917.6161
157.5917.6171
157.5917.6201
157.5917.6231
157.5917.6251
157.5917.6281
–
157.5917.6331
157.5917.6351
157.5917.6421
157.5917.6501
Opening Time Min / Max (s)
35-200
225 - 500
150
3,600 s / –
–/–
160
–/–
60 s / –
220
– / 60 s
250
0.8 s / 10 s
400
0.20 / 2 s
Current
Rating
(A)
Typ. Voltage
Drop
(mV)
Breaking
Capacity
(VDC/A)
Material
Thickness “S”
(mm)
35
40
50
63
80
100
125
130
135
150
160
175
200
225
250
275
300
325
355
400
425
500
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
48/210
48/240
48/300
48/378
48/480
48/600
48/750
48/780
48/810
48/900
48/960
48/1050
48/1200
48/1350
48/1500
48/1650
48/1800
48/1950
48/2130
48/2400
48/2550
48/3000
0.6
0.6
0.6
0.6
0.6
0.5
0.8
0.8
0.8
0.8
1.0
1.0
0.8
0.5
0.5
0.8
0.8
0.8
0.8
0.8
1.0
1.0
Corresponding holder see Section “Fuse Holders.”
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
35
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High Current Fuses
HSB Fuses Rated 32V
Non-housed fuse strips for rated voltage up to 32 VDC. Current rating 30 A -175 A.
Ring type lugs.
Specifications
Voltage Rating: 32 VDC
Interrupt Ratings: 1000A
Operating Temperature Range: -40° to 125°C
Material:Zinc-alloy
Connections:Zinc-alloy
2 x M6 bolts, distance 30 mm
Torque:
4 Nm +/- 1 Nm
Ordering Information
Part Number
Time-Current Characteristics
Package Size
% of Rating
156.5677.xxx1
100
100
∞/–
156.5677.xxx2
10000
125
360,000 s / –
300
0.100 s / 10 s
Opening Time Min / Max (s)
600
0.020 s / 1 s
1000
0.010 s / 0.300 s
Ratings
Part Number
Pre-Arcing Time-Limits
Current Rating Typ. Voltage Drop
(A)
(mV)
Cold Resistance
(mΩ)
I2t
(A²s)
Material Thickness “S”
(mm)
156.5677.530_
30
44
1.33
3800
0.4
156.5677.540_
40
40
0.89
11200
0.4
156.5677.550_
50
44
0.72
21300
0.4
156.5677.560_
60
38
0.58
41400
0.4
156.5677.580_
80
40
0.43
44800
0.8
156.5677.611_
110
40
0.31
139000
0.8
156.5677.615_
150
52
0.23
465000
0.8
156.5677.617_
175
46
0.22
560000
0.8
Dimensions
Dimensions in mm
S
FI = 1.00 (max. operating current:
1.0 x Irat at 23°C)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
littelfuse.com
36
High Current Fuses
Fuse Strips with Rated 36V - SPECIAL PURPOSE FUSES
(NOT INTENDED FOR AUTOMOTIVE OR TRUCK APPLICATIONS)
Non-housed fuse strips for Diesel vehicles. Current rating 25A - 150A, 36 VDC. 90° fork
type lugs.
Specifications
Voltage Rating: 36 VDC
Interrupt Ratings
up to 625A
Operating Temperature Range: -40° to 125°C
Material:Zinc-alloy
Complies with:
DIN 72581/2
Time-Current Characteristics
Ordering Information
Package Size
% of Rating
Opening Time Min / Max (s)
156.5610.xxx1
100
130
3,600 s / –
156.5610.xxx2
2000
250
– / 60 s
Part Number
Ratings
Pre-arcing Time-limits
Part Number
Current Rating
(A)
Typ. Voltage Drop
(mV)
Material Thickness “S” (mm)
156.5610.525_
25*
70
0.20
156.5610.530_
30
70
0.25
156.5610.540_
40*
70
0.20
156.5610.550_
50
70
0.25
156.5610.560_
60*
70
0.40
156.5610.570_
70*
70
0.45
156.5610.580_
80
70
0.50
156.5610.610_
100
70
0.70
156.5610.611_
120*
70
0.70
156.5610.612_
125*
70
0.70
156.5610.615_
150*
70
1.00
156.5610.625_
250*
70
2.00
*Not mentioned in the standards
Corresponding holder see Section “Fuse Holders.”
Dimensions
Dimensions in mm
S
FI = 1.00 (max. operating current: 1.0 x Irat at 23°C)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
37
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Cable/PAL Fuses
littelfuse.com
BF-Inline Fuses Rated 32V
39
CABLEPRO® Cable Protector Fuses Rated 32V
40
PAL Fuses
41
38
Cable Fuses
BF-Inline Fuse Rated 32V
Inline fuse to protect specific cable cross-sections and insulations; Cross-section 10mm²
to 35mm². For rated voltage up to 32 VDC.
Assembly notes: The wire integrated fuse has to be insulated by using a self-adhesive
shrinking tube. The wire has to be fixed on both sides of the fuse to minimize the wire
forces. Recommended shrinking tube: DERAY(R)-IAKT 4:1, 24mm
Specifications
Voltage Rating:
Housing Material:
Insulating Housing Matierial:
Terminals: Interrupting Rating:
32 VDC
PETGF30
PAGF30
Crimp, Copper alloy, tinned
2000A @32VDC
Ordering Information
Part Number
Package Size
153.0000
300
Time-Current Characteristics 100A-190A
% of Rating
100
150
200
300
500
Opening Time Min / Max (s)
360,000 s
90 s
3s
0.3 s
0.1 s
–
1800 s
240 s
60 s
10 s
Time-Current Characteristics 300A
% of Rating
75
165
200
350
500
Opening Time Min / Max (s)
360,000 s
10 s
1s
0.3 s
0.1 s
–
100 s
15 s
5s
1s
Ratings
Time-Current Characteristics Curve
100000 10000 Part Number
Current Rating
(A)
Wire Size/Type/
Marking
153.1002
153.1012
153.1602
153.1612
153.2502
153.2512
153.3502
100
125
125
170
170
190
300
10mm²/FLY/P
10mm²/FL2G/S
16mm²/FLY/P
16mm²/FL2G/S
25mm²/FLY/P
25mm²/FL2G/S
35mm²/FLY/P
Typ. Voltage Drop Cold Resistance
(mV)
(mΩ)
60
70
75
60
70
52
70
0.42
0.32
0.41
0.22
0.29
0.22
0.20
I2t
(A2s)
27,000
87,500
29,600
248,000
78,500
248,000
373.000
153.1002(100A) 1000 153.1012 (125A) 153.1602(125A) Time (s)
153.1612(170A) 100 153.2502(170A) 153.2512(190A) 153.3502(300A) 10 1 0.1 10 100 1000 Current (A)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
39
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Cable Fuses
CABLEPRO® Cable Protector Fuses Rated 32V
Available in AWG and metric cables
The CABLEPRO® fuse is designed to replace conventional wire fusible links in high
current automotive applications. The slim package of the CABLEPRO® and the predictable
and reliable performance characteristics (similar to MEGA® fuse) make this far superior
over wire fusible links. Interrupting rating 2000A @ 32 VDC.CablePro is not a sealed
product. To seal it a shrink tube should be used.
Specifications
Voltage Rating:
32V
Interrupting rating:
2000A @ 32 VDC
Housing Material:
PPAGF33HS
Operating Temperature Range: -40°C to +125°C
Cable Types Available: SAE J1127 SXT, SAE J1128 TXL, ISO 6722: Type FL2G
Operating Temperature Range: -40°C to +150°C ­- Optional for 150A, 175A and 200A ratings
Cable Type: Thin wall irradiated XLPE (SAE 4GA)
Available with UL recognized in 60, 100, 150 & 200 at 32V
(UL not available with the thin wall irradiated XLPE SAE 4GA cable)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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40
PAL Fuses
293 Series
2935 Series
2938 Series
Auto Link PAL 293 Series Fuse
Amps (A): 20, 30, 40, 50, 60, 70, 80, 100
Auto Link PAL 2935 Series Fuse
Amps (A): 25, 30, 45, 65, 75
Auto Link PAL 2938 Series Fuse
Amps (A): 20, 30, 40, 50, 60, 70, 80
294 Series
294C Series
295 Series
Auto Link PAL 294 Series Fuse
Amps (A): 30, 40, 50, 60, 70, 80, 100, 120
Auto Link PAL 294C Series Fuse
Amps (A): 20, 30, 40, 50, 60, 70, 80, 100, 120
Auto Link PAL 295 Series Fuse
Amps (A): 20, 30, 40, 50, 60, 70, 80, 100, 120,
140
283B Series
283 Series
Auto Link PAL 283B Series Fuse
Amps (A): 20, 30, 40, 50, 60, 70, 80, 100,
120, 140
Auto Link PAL 283 Series Fuse
Amps (A): 20, 30, 40, 50, 60, 70, 80, 100,
120, 140
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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High Voltage Fuses
littelfuse.com
LC High Voltage Fuse43
LC High Voltage 50A Fuse
42
45
High Voltage Fuses
Low Current HEV Fuse
The LC HEV fuse is designed for protection of high-voltage accessory circuits in electric
and hybrid electric vehicles.
Specifications
Low Current HEV Fuses
Voltage Rating (10A, 15A, 20A, 30A):
Voltage Rating (40A):
Note: The 0HEV040.ZXBD is rated at 450 VDC
Interrupting Rating (10A, 15A, 20A, 30A):
Interrupting Rating (40A):
Operating Temperature Range:
450 VDC
425 VDC
10kA @ 450 VDC
10kA @ 425 VDC
-40ºC to +125ºC
Ordering Information
0HEV040.ZXBD
Time-Current Characteristics
Part Number
Termination
Package
Size
0HEVxxx.ZXC
Cartridge
240
0HEVxxx.ZXISO
Bolt Down (ISO)
240
0HEVxxx.ZXPY
Blade
240
0HEVxxx.ZXBD
Bolt Down (Axial)
240
0HEVxxx.ZXPCB
PCB Mount
240
0HEVxxx.ZXPCBL PCB Mount (Long)
240
% of
Rating
Opening Time
Min / Max (s)
10A
Opening Time
Min / Max (s)
15A, 20A, 30A
Opening Time
Min / Max (s)
40A
100
110
135
150
200
300
500
100 hrs / 4 hrs / 100 / 3600
10 / 1000
0.5 / 100
0.1 / 15
0.05 / 1
100 hrs / 4 hrs / 150 / 3600
10 / 1000
0.5 / 100
0.1 / 15
0.05 / 1
100 hrs / 150 / 3600
10 / 1000
0.5 / 100
0.1 / 15
0.05 / 1
Ratings
Part Number
0HEV010.xxx
0HEV015.xxx
0HEV020.xxx
0HEV030.xxx
0HEV040.xxx
Current
Rating
(A)
10
15
20
30
40
Typical Voltage
Drop at 70% IR
(mV)
114
96
79
67
69
Color
Code
Maximum Voltage
Drop Spec at 100% IR
(mV)
300
200
200
200
200
Typical Cold
Resistance
(mΩ)
12.8
7.9
5.0
2.7
2.0
Minimum
Melting I²t
(A2s)
255
133
268
993
1495
(Average Initial Measurements)
Time-Current Characteristic Curves
Temperature Rerating Curve
20A
30A
40A
15A
10A
LC HEV FUSE
1000
100
TIME IN SECO
ONDS
10
1
0.1
0.01
1
10
100
1000
CURRENT IN AMPERES
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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High Voltage Fuses
Low Current HEV Fuse
Dimensions
Dimensions in mm
ZXC Cartridge
ZXBD Bolt Down (Axial)
ZXISO Bolt Down (ISO)
ZXPCB PCB Mount
ZXPY Blade
ZXPCBL PCB Mount (Long)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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44
High Voltage Fuses
Low Current High Voltage 50A Fuse
The LC HEV fuse is designed for protection of high-voltage accessory circuits in electric
and hybrid electric vehicles.
Specifications
Voltage Rating (50A):
Interrupting Rating (50A):
Operating Temperature Range:
275 VAC
10,000A @ 275 VAC
-40˚C to +125˚C
Ordering Information
Low Current
High Voltage 50A Fuses
Time-Current Characteristics
Package
Size
% of Rating
Opening Time Min / Max (s)
Part Number
Termination
0HEVxxx.ZXISO2
Bolt Down (ISO)
240
100
100 hrs / -
0HEVxxx.ZXP2Y
Blade
240
110
4 hrs / -
0HEVxxx.ZXPCB2
PCB Mount
240
135
-
0HEVxxx.ZXPCBL2
PCB Mount (Long)
240
150
-
0HEVxxx.ZXBD2
Bolt Down (Axial)
240
200
0.5 / 100
300
0.1 / 15
500
0.05 / 1
Ratings
Part
Number
Current
Rating
(A)
Voltage
Rating
(VAC)
0HEV050.XXX
50
275
Color
Code
Typical Voltage
Drop at 70% IR
(mV)
57
Maximum Voltage Typical Cold
Drop Spec at 100% IR Resistance
(mΩ)
(mV)
200
1.2
Minimum
Melting I²t
(A2s)
1495
Temperature Rerating Curve
Time-Current Characteristic Curves
50A
275 VAC LC HEV FUSE
1000
100
TIME IN SECONDS
10
1
0.1
0.01
1
10
40 50
100
CURRENT IN AMPERES
Littelfuse, Inc.
1000
May 2012
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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High Voltage Fuses
Low Current High Voltage 50A Fuse
Dimensions
Dimensions in mm
ZXISO2 Bolt Down (ISO)
ZXPCB2 PCB Mount
ZXP2Y Blade
ZXPCBL PCB Mount (Long)
ZXBD2 Bolt Down (Axial)
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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46
Specialty Products
Shunts
48
Fuseholders49
47
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Specialty Products
SHUNTS
ATO® Shunt
MINI® Shunt
MICRO2 ® Shunt
Operating Temp.:
-40˚C to +125˚C
Maximum Continuous Load Rating: 35A*
Housing Material:
Thermoplastic
(UL 94V0 Rated)
Terminal Material:
Brass Tin Plated
Operating Temp.:
-40˚C to +125˚C
Maximum Continuous Load Rating: 20A*
Housing Material:
Thermoplastic
(UL 94V0 Rated)
Terminal Material:
Zinc Silver Plated
Operating Temp.:
-40˚C to +125˚C
Maximum Continuous Load Rating: 20A*
Housing Material:
PA66
Terminal Material:
Ag plated zinc alloy
MICRO3 ® Shunt
JCASE ® Shunt
MCASE+ ® Shunt
Operating Temp.:
-40˚C to +125˚C
Maximum Continuous Load Rating: 15A*
Housing Material:
PA66
Terminal Material:
Ag plated zinc alloy
Operating Temp.:
-40˚C to +125˚C
Maximum Continuous Load Rating: 50A*
Housing Material:
PA66
Terminal Material:
Copper
Operating Temp.:
-40˚C to +125˚C
Maximum Continuous Load Rating Unslotted: 30A*
Maximum Continuous Load Rating Slotted: 50A*
Housing Material:
PPA (33% / 35% GF)
Terminal Material:
Copper
Part Number
Type
Max Continuous
Load Rating*
(A)
Housing Material
Terminal Material
Part Quantity
2000
02400094P
ATO
35
Thermoplastic (UL 94V0)
Brass Tin Plated
0297900.WXNV
MINI
20
Thermoplastic (UL 94V0)
Zinc Silver Plated
3000
0327900.YX2S
MICRO2
20
PA66
Zinc Silver Plated
4000
0337900.PX2S
MICRO3
15
PA66
Zinc Silver Plated
2000
0495900_
JCASE
50
PA66
Copper
Z=2200 pcs/X=1 pc
0695900.PXP
MCASE+ Unslotted
30
PPA (33%/35% GF)
Copper
2000
0695900.PXPS
MCASE+ Slotted
50
PPA (33%/35% GF)
Copper
2000
*Rating varies based on mating terminal performance
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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48
Fuseology
I. Introduction
The purpose of this Fuseology section is to promote a better
understanding of fuses and some of the more common
application details. The fuses to be considered are currentsensitive devices which are designed as the intentional weak
link in the electrical circuit. The function of a fuse is to provide
discrete component or complete circuit protection by reliably
melting under overcurrent conditions and thus safely
interrupting the flow of current.
II. Types of Overcurrents
An overcurrent is any current which exceeds the ampere
rating of wiring, equipment or devices under conditions of
use. The term “overcurrent” includes both overloads and
short circuits.
A.Overloads
An overload is an overcurrent which is confined to normal
current paths. An overload occurs when the current
exceeds the value for which the wires or equipment are
rated. This can happen when too many devices are
connected to the circuit, or when a device connected to the
circuit malfunctions in a way that causes it to draw higher
than normal current, usually in the range of one to six times
normal current. Sustained overloads eventually overheat
circuit components. Therefore, fuses must open circuits
experiencing sustained overloads before damage occurs.
B.Short Circuits
A short circuit is current out of its normal path. It occurs
when accident or malfunction creates an unintended path
for the electricity to flow from the battery or alternator to
ground. This shorter, more direct path to ground bypasses
the resistance normally offered by the wiring and devices
connected to the circuit. With virtually no resistance left to
impede current flow, the voltage forces higher and higher
current to flow through the wires to the point of the short.
Under such a condition, the current will quickly build to
such a high level that the heat generated can cause
insulation to burn and equipment to be damaged unless
the circuit is opened through the use of a fuse.
B.Interrupting Rating
The interrupting rating (also known as breaking capacity or
short circuit rating) is the maximum current, as stated by
the manufacturer, which the fuse can safely interrupt at
rated voltage. During a fault or short circuit condition, a
fuse may receive an instantaneous current many times
greater than its normal operating current. Safe operation
requires that the fuse remain intact (no body rupture) and
clear the circuit. The interrupting rating is 1000A @ 32 volts
DC for the MINI®, MAXI ®, ATO ®, JCASE®, and MIDI®
Fuses, and 2000A @ 32 volts DC for the MEGA® and
CABLEPRO ® Fuses.
C.Time-Current Characteristics
A fuse’s time-current characteristics determine how fast it
responds to different overcurrents. All fuses have inverse
time-current characteristics, so opening time decreases as
overcurrents increase. Time-current characteristics are
presented graphically on standardized “log-log” paper.
Figure 1 is a sample time-current curve for the MAXI Fuse
series for fuses rated 20-60A. Current values increase
from left to right, and time increases from bottom to top.
The average melting time for any current can be determined
from the curve. For example, from Figure 1 it can be
determined that a 20A MAXI Fuse experiencing an overload
of 100A will open in about 0.5 seconds. At 40A, the same
20A MAXI Fuse would open in about 9 seconds.
Time-current curves are also used to compare fuses of the
same series but of different current ratings. Suppose it
was desired to compare the opening times of 20A and 60A
MAXI Fuses at an overload of 100A. From the curve in
Figure 1, one can see that the 20A fuse opens in about 0.5
seconds at 100 amps, whereas the 60A fuse does not
open until about 50 seconds.
Figure 1: Average MeltingCurrent Curve for the MAXI
Fuse Series (20-60A)
III.Fuse Selection Parameters
Since overcurrent protection is crucial to reliable electrical
system operation and safety, fuse selection and application
should be carefully considered. When selecting fuses, the
following parameters should be evaluated:
A.Voltage Rating
The voltage rating, as marked on a fuse, indicates the maximum voltage of the circuit for which the fuse is designed to operate safely in the event of an overcurrent. Therefore, the fuse’s voltage rating must equal or exceed
the available circuit voltage where the fuse will be installed. System voltage exceeding the fuse’s rated voltage may
result in fuse damage. The voltage rating is 32 volts DC
for the MINI®, MAXI ®, ATO ®, MIDI®, MEGA®, and
CABLEPRO ® Fuses.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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Fuseology
It is important to note that time-current curves give only
average melting times and are presented as a design aid
but are not considered as part of the fuse specifications.
The term used in fuse design that describes how rapidly
a fuse responds to various overcurrents is the fuse’s
“characteristics.” Automotive fuse characteristics are
determined by the fuse’s degree of time delay. Initial or
start-up pulses are normal for many automotive applications
and require fuses to have a time delay designed in to enable
them to survive these pulses and still provide protection
against prolonged overloads. Fuses such as the MINI®
Fuse and ATO® Fuse have a moderate degree of time delay,
whereas fuses like the MAXI® Fuse and MEGA® Fuse have
a high degree of time delay which enables them to handle
high inrush currents like those caused by motor start-ups.
Figure 2 compares sample time-current curves of a 30A
MINI Fuse to a 30A MAXI Fuse. To see that the MAXI Fuse
has more time delay than the MINI Fuse, compare their
opening times at an overload of 100A. Despite the fact that
the fuses are the same rating, the MINI Fuse opens in about
0.1 seconds while the MAXI Fuse opens in about 2.2 seconds.
usually recommended for operation at more than 7.5A
in a 25˚C ambient.
2. Rerating for Ambient Temperature
The current carrying capacity tests of fuses are
performed
at 25˚C & will be affected by changes in ambient
temperature.
At higher ambient temperatures, a fuse will respond
faster to a given overload. Conversely, at lower ambient
temperatures, a fuse will respond slower to a given
overload. In addition, the temperature of the fuse increases
as the normal operating current approaches or exceeds
the rating of the fuse.
A MINI Fuse operating at 25˚C and 110% of rated current
has a minimum life of 100 hours. However, if that same
fuse were operated at a very high ambient temperature,
rerating would be necessary. Figure 3 is a sample
temperature rerating curve for the MINI Fuse. The
following example shows how to use such a curve.
uppose there is a normal operating current of 15
S
amperes in a particular circuit, and the ambient
temperature will be 105˚C instead of 25˚C. Which MINI
Fuse rating should be used? From Figure 3, the percent
of rated current to be used at an ambient temperature of
105˚C is 88%, so:
When selecting a fuse, the start-up pulse should be defined
and then compared to the time-current curve for the fuse.
1000
Ideal fuse rating = Normal operating current
Temp rerating factor x 0.75
100
TIME IN SECONDS
= 15A
0.88 x 0.75
10
=
22.73A
Therefore, a 25A or larger MINI Fuse should be used.
30A MAXITM FUSE
30A MINITM FUSE
1
E.Transient Overcurrent Considerations
0.1
0.01
1
10
100
1000
CURRENT IN AMPERES
10000
Figure 2: Average Melting-Current Curve Comparing 30A MINI Fuse to 30A
MAXI Fuse
D. Current Rating
The current rating is the maximum current which the fuse
can continuously carry under specified conditions.
1. Normal Operating Current
The current rating of a fuse is typically derated 25%
for operation at 25˚C to avoid nuisance blowing.
For example, a fuse with a current rating of 10A is not
Figure 3: MINI Auto Fuse 297 Series Temperature Rerating Curve
Transient pulses of inrush current are commonplace in
vehicle electrical systems. The transient overcurrent pulses
affect the life of automotive fuses.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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50
Fuseology
Melting I2t: the thermal energy required to melt a specific
fuse element.
Arcing I2t: the thermal energy passed by a fuse during the
arcing time. The magnitude of arcing I2t is a function of the
available voltage and stored energy in the circuit.
Figure 4 shows how I2t of the pulse can be calculated from the
graph of the pulse current as a function of time.
igure 5 is a graph of the pulse cycle withstand capability of
F
blade fuses. Because electrical pulse conditions can vary
considerably from one application to another, application testing
is recommended to establish the ability of the fuse design to
withstand the pulse condition.
Total Clearing I2t: the thermal energy through the fuse from
overcurrent inception until current is completely interrupted.
Total clearing I2t = (melting I2t) + (arcing I2t).
1000000
I2t has two important applications to fuse selection. The first
is pulse cycle withstand capability and the second is selective
coordination.
100000
2. Pulse Cycle Withstand Capability
Electrical pulses produce thermal cycling and possible
mechanical fatigue that could affect the life of the fuse.
NUMBER OF PULSES
10000
For this reason, it is important to know the pulse cycle
withstand capability of the fuse, which is defined as the
number of pulses of a given I2t value that can be withstood by
the fuse without opening, assuming that there is sufficient cool
down time between pulses.
1000
100
33
1. I2t
I2t is an expression of the available thermal energy resulting
from current flow. With regard to fuses, the term is usually
expressed as melting, arcing, and total clearing I2t. The units
for I2t are expressed in ampere-squared-seconds [A2s].
3 sigma confidence limit
Actual # of pulses
10
1
0.1
1
RELATIVE I2t
Figure 5: Pulse Cycle Withstand Capability for Blade Fuses
3. Selective Coordination
In a selectively coordinated system, only the fuse
immediately on the line side of an overcurrent opens.
Upstream fuses remain closed and undamaged. All other
equipment remains in service, which simplifies locating
overloaded equipment or short circuits. In Figure 6, if a
short circuit arises behind fuse #1, fuse #1 should open and
fuse #2 should stay closed and undamaged. The condition
necessary to assure this result is that the minimum melting
I2t of the supply side fuse (fuse #2) must be greater than
the total clearing I2t of the load side fuse (fuse #1). This
condition results in the load side fuse opening before the
supply side fuse begins to melt. Minimum melting and total
clearing I2t data are given in this catalog.
i = + kt
I2t = (1/5)ic2t
FUSE #2
Natural decay to non-zero value
FUSE
#1
ib
I2t= ib2t - 2τib(ic-ib)(e-t/τ-1)-τ/2(ic-ib)2(e-2t/τ-1)
SUPPLY SIDE
LOAD
SIDE
Figure 6: Selective
Coordination for
Fuses in Series
Figure 4: Evaluating the I²t of a Variety of Current Wave Shapes
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
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Fuseology
IV. Voltage Drop Across Terminals
A fuse is only as good as the system in which it is used.
One aspect of the electrical system that has considerable
effects on the performance of the fuse is the quality of the
connection between the fuse and the cable it protects.
High voltage drop across the fuse/terminal interface creates
additional thermal loading, which in turn causes shifts in the
time-current characteristics of the fuse. Table 1 below gives
the maximum recommended voltage drop per terminal for
automotive fuses. Figure 7 indicates the measurement
locations used to determine the voltage drop across the
terminal. The voltage drop across the left terminal would be
V2-4 and the voltage drop across the right terminal would be V1-3.
Type
Maximum Recommended Voltage Drop
Per Terminal [MV]
(between points 1-3 or 2-4)
ATO® FUSE
30
MINI® FUSE
MAXI® FUSE
30
30
®
15
MEGA FUSE
Table 1: Maximum Recommended Voltage Drop per Terminal
V. Diffusion
Diffusion Pill Technology is a mixing of molecules, atoms or
crystals in the solid, liquid or gaseous state. Diffusion Pill
Technology is often used in the design of fuses for
automotive, electronic and industrial fuse applications.
“M-effect” is the method of diffusing one metal into another
to form a new alloy with a lower melting point. Littelfuse
uses the “M-effect” to produce three very desirable
characteristics in fuse designs: lower melting temperature,
time delay, and lower voltage drop.
By affixing a diffusion pill tin to the element, the melting
temperature is decreased. This decrease in melting
temperature reduces the fuse rating. In order to reestablish
its original rating the fuse elements’ cross section needs to
increase. An increase in cross section increases the blow
time at higher overload condition. A higher degree of time
delay enables a fuse to withstand higher current inrush
pulses. This increase in cross section reduces the overall
fuse resistance and voltage drop.
VI.Match Wire Gauge to Fuse
In order to protect wiring under all overload and short circuit
conditions, it is necessary to standardize the fuse and wire
selection process.
Fuses have controlled opening characteristics, and each wire
gauge has its respective current carrying capacity. Fuses need to
be selected to always protect the wire insulation from damage.
In the selection of wire gauge at various ambient
temperatures, it is important to consider the worst case or
highest ambient temperature for the application. Wires derate
to a much higher degree than fuses, because wire insulation
temperature capability is affected much more severely.
1
2
Maximum Recommended Continuous Current
Max Continuous Current (A)
Wire Size
mm²
Gage No.
0.3
0.5
4
0.75
0.8
1
1.5
2
2.5
3
4
5
6
8
10
13
19
3
Figure 7: Measurement Locations along the Fuse/Terminal/Cable
System Used to Determaine the Voltage Drop across the Terminal
20
18
16
14
12
10
8
6
4
At 25˚C
GXL (1)
GPT (2)
At 80˚C
GXL (1)
GPT (2)
At 105˚C
GXL (1)
15
10
11
4
9
21
15
16
6
13
27
31
33
43
50
60
68
80
90
103
125
146
170
221
21
22
23
30
36
42
47
56
65
73
87
103
120
156
20
23
25
33
37
45
51
61
68
78
96
111
129
166
7
7
9
12
14
15
18
22
23
28
30
40
47
61
17
19
20
27
32
38
42
50
58
64
79
90
105
137
(1) = General purpose cross link polyethylene insulation wire with a maximum insulation temperature of 155˚C.
(2) = General purpose thermoplastic insulation wire with a maximum insulation temperature of 90˚C.
Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties
granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation.
littelfuse.com
52
To assist you with your design and selection processes,
Littlefuse also offers:
Comprehensive Online Product Specs on Littelfuse.com—
Featuring easy-to-use navigation, search and selection tools, as well as
additional product details. You can rely on Littelfuse.com for instant
answers and continuously up-to-date information.
Printed Product Catalogs—For offline and off-the-shelf convenience, our
printed product catalogs include data sheets, selection tables and tutorials
covering all of our core technologies. Contact your Littelfuse product
representative or visit www.littelfuse.com/about-us/product-catalogs to
check availability.
Circuit Protection Design Guides—Our application-design center website,
www.littelfuse.com/technical-resources/application-designs offers a wealth
of circuit protection guidance to help you select and apply the best circuit
protection solution for your application.
As the world's #1 brand in circuit protection Littelfuse offers the broadest
and deepest portfolio of circuit protection products and a global network
of technical support, backed by more than 85 years of application design
expertise. For all of your circuit protection needs visit our Technical Resources
center at www.littelfuse.com/technical-resources
 Application Notes
 Application Testing
 SPICE Models
 Local Technical Support
 Reference Designs
 Product Samples
 Technical Articles
 Certification Documents
 Data Sheets
Littelfuse is the world leader in circuit protection. We offer an extensive selection of circuit protection technologies for
Automotive applications. Littelfuse circuit protection expert staff can assist you in designing circuit protection for your
most demanding applications. Solutions for over-current applications as well as over-voltage applications are available
from Littelfuse.
Low Current Distribution (LCD) MICRO2, MICRO3, LP MINI, MINI, ATOF, MAXI, MCASE, LP JCASE, JCASE
High Current Distribution (HCD) ZCASE MASTERFUSE, MASTERFUSE, ZCASE MEGA, MIDI, BF1, MEGA, CF
High Voltage Fuses (HEV) OHEV
Battery Cable Protection (BCP) CABLE PRO and BF-Inline products for mounting directly inline as part of a
high-power cable assembly
or more information, please contact your authorized Littelfuse product representative
F
or visit our website at www.littelfuse.com
© 2016 Littelfuse, Inc.
Specifications descriptions and illustrative material in this literature are as accurate as known at the time of publication,
but are subject to changes without notice. Visit www.littelfuse.com for most up-to-date technical information.
FORM NO. AA101