Littelfuse L50QS150 L50qs series high-speed round body fus Datasheet

POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
HF
500 Vac/dc • 35-800 A • Traditional Round Body Bolted Style
Specifications
Voltage Rating
AC: 500V
DC: 500V
35 - 800 A
AC: 200 kA
DC: 50 kA
10ms
Body: Melamine
Caps: Copper Alloy (Silver Plated)
UL Recognized (E71611)
c-UR-us (E71611)
RoHS Compliant, REACH
Mexico
-55C to +125C
Up to 35C with Relative Humidity <65%
Amperage Rating
Interrupting Rating
Time Constant
Material
Approvals
Environmental
Country of Origin
Operating Temperature
Storage Temperature
Description
The L50QS Series is a next generation High-Speed Fuse
for the protection of power semiconductor devices and
is designed in the Traditional North American Bolted
Style package.
Part Numbering System
L50QS Series High-Speed Fuses are extremely current
limiting and are used to protect power converters, drives
and control circuit applications. Designed with lower I2t
performance characteristics, these fuses provide balanced
performance to extend longevity while lowering potentially
damaging heat energy to the devices being protected.
Series
L50
In addition L50QS Series fuses have been designed with a
universal mounting option to meet customer requirements
for installation into a variety of application configurations
Littelfuse POWR-SPEED™ products offer optimized
circuit protection at the extremely fast speed required to
protect modern day, sensitive, high-power semiconductor
devices. Such products are commonly found in various
industries including pulp and paper industries, cranes and
heavy-lifting equipment, processing industries, wastewater
treatment plants and large factories and MRO facilities.
QS
500 X
Package Quantity
Body Type
X = 1 (450 - 800A)
V = 5 (125 - 400A)
T = 10 (35 - 100A)
Ampere Code
SERIES
L50
BODY AMPERE
TYPE
CODE
QS
500
PACKAGE
QUANTITY
CATALOG
NUMBER
ORDERING NUMBER
1
L50QS500
L50QS500.X
Recommended Fuse Blocks
LSCR001 (35-200A)
LSCR002 (225-800A)
Features
•
•
•
•
Compliance with US and Canadian Requirements
Traditional North American Bolted Style dimensions
Class aR performance
Direct bus-bar mount or stud mount design
• Halogen Free, RoHS and REACH Compliant
Applications
•
•
•
•
Power Converters (Inverters, Rectifiers)
Power Supplies
UPS
Variable Speed Drives
Web Resources
• Control Circuits
Download technical documents: littelfuse.com/L50QS
• Soft Starters
littelfuse.com
1 of 12
© 2017 Littelfuse POWR-GARD® Products
Rev: 110317
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
CATALOG
NUMBER
AMPERAGE
RATING
Electrical Specifications
VOLTAGE
RATING
INTERRUPT
RATING
AC DC
AC
MELTING
(PRE-ARC)
I2T (A2s)
DC
TOTAL
CLEARING
I2T (A2s)
TOTAL
CLEARING
I2T (A2s)
200 kA @ 500 Vac 50 kA @ 500 Vdc
WATTS LOSS WATTS LOSS
AT 80% RATED AT 100% RATED
CURRENT
CURRENT
(W)
(W)
L50QS035
35
500 500 200kA
50kA
111
430
290
3
5
L50QS040
40
500 500 200kA
50kA
137
530
363
3
9
L50QS050
50
500 500 200kA
50kA
211
770
516
5
8
L50QS060
60
500 500 200kA
50kA
269
1,500
881
5
9
L50QS070
70
500 500 200kA
50kA
393
1,775
1,185
6
11
L50QS080
80
500 500 200kA
50kA
616
3,550
1,720
6
11
L50QS090
90
500 500 200kA
50kA
720
4,075
1,990
8
14
L50QS100
100
500 500 200kA
50kA
905
4,577
2,313
9
17
L50QS125
125
500 500 200kA
50kA
1,503
7,655
4,815
10
17
L50QS150
150
500 500 200kA
50kA
2,382
11,100
7,190
12
21
L50QS175
175
500 500 200kA
50kA
3,148
16,500
9,900
14
25
L50QS200
200
500 500 200kA
50kA
4,102
18,233
11,567
17
32
35
L50QS225
225
500 500 200kA
50kA
5,379
25,300
16,700
19
L50QS250
250
500 500 200kA
50kA
7,094
31,350
22,500
20
37
L50QS275
275
500 500 200kA
50kA
9,655
40,175
30,177
21
39
L50QS300
300
500 500 200kA
50kA
11,240
53,800
36,150
25
46
L50QS325
325
500 500 200kA
50kA
13,183
56,250
41,000
27
51
L50QS350
350
500 500 200kA
50kA
14,246
68,850
44,800
30
61
L50QS400
400
500 500 200kA
50kA
21,155
100,300
67,300
33
65
L50QS450
450
500 500 200kA
50kA
26,425
121,000
84,650
35
63
L50QS500
500
500 500 200kA
50kA
31,747
141,000
103,500
39
72
L50QS600
600
500 500 200kA
50kA
43,922
193,500
128,000
49
92
L50QS700
700
500 500 200kA
50kA
75,597
314,000
230,000
51
92
L50QS800
800
500 500 200kA
50kA
92,717
393,500
280,000
63
117
littelfuse.com
2 of 12
© 2017 Littelfuse POWR-GARD® Products
Rev: 110317
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
Ordering Information
SERIES
AMPERAGE
RATING
AMPERE
CODE
CATALOG
NUMBER
ORDERING
NUMBER
PACK
QUANTITY
UPC
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
L50QS
35
40
50
60
70
80
90
100
125
150
175
200
225
250
275
300
325
350
400
450
500
600
700
800
035
040
050
060
070
080
090
100
125
150
175
200
225
250
275
300
325
350
400
450
500
600
700
800
L50QS035
L50QS040
L50QS050
L50QS060
L50QS070
L50QS080
L50QS090
L50QS100
L50QS125
L50QS150
L50QS175
L50QS200
L50QS225
L50QS250
L50QS275
L50QS300
L50QS325
L50QS350
L50QS400
L50QS450
L50QS500
L50QS600
L50QS700
L50QS800
L50QS035.T
L50QS040.T
L50QS050.T
L50QS060.T
L50QS070.T
L50QS080.T
L50QS090.T
L50QS100.T
L50QS125.V
L50QS150.V
L50QS175.V
L50QS200.V
L50QS225.V
L50QS250.V
L50QS275.V
L50QS300.V
L50QS325.V
L50QS350.V
L50QS400.V
L50QS450.X
L50QS500.X
L50QS600.X
L50QS700.X
L50QS800.X
10 Pcs/ Box
10 Pcs/ Box
10 Pcs/ Box
10 Pcs/ Box
10 Pcs/ Box
10 Pcs/ Box
10 Pcs/ Box
10 Pcs/ Box
5 Pcs/ Box
5 Pcs/ Box
5 Pcs/ Box
5 Pcs/ Box
5 Pcs/ Box
5 Pcs/ Box
5 Pcs/ Box
5 Pcs/ Box
5 Pcs/ Box
5 Pcs/ Box
5 Pcs/ Box
1 Pc/ Box
1 Pc/ Box
1 Pc/ Box
1 Pc/ Box
1 Pc/ Box
07945885991
07945885992
07945885993
07945885994
07945885995
07945885996
07945885997
07945885998
07945885999
07945886000
07945886001
07945886002
07945886003
07945886004
07945886005
07945886006
07945886011
07945886007
07945886008
07945886009
07945886010
07945886012
07945886013
07945886014
littelfuse.com
3 of 12
© 2017 Littelfuse POWR-GARD® Products
Rev: 110317
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
Dimensions
Millimeters [inches]
Document Number: OL-L50QS000
25.27
[0.995]
10.41
[0.410]
22.73
[0.895]
17.02
[0.670]
8.73
[0.344]
8.74
[0.344]
92.08
[3.625]
110.31
[4.343]
92.08
[3.625]
76.19
[2.999]
53.98
[2.125]
65.07
[2.562]
87.37
[3.440]
73.86
[2.908]
70.32
[2.768]
35-100A
225-400A
125-200A
3.18
[0.125]
6.35
[0.250]
4.75
[0.187]
∅ 25.40
∅ 38.10
[1.500]
∅ 30.94
[1.000]
[1.218]
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
53.16
[2.093]
69.83
[2.749]
53.98
[2.125]
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
50.80
[2.000]
13.46
[0.530]
38.10
[1.500]
10.41
[0.410]
157.15
[6.187]
126.93
[4.997]
113.49
[4.468]
87.30
[3.437]
92.82
[3.654]
56.34
[2.218]
70.86
[2.790]
700-800A
450-600A
6.35
[0.250]
9.53
[0.375]
∅ 50.80
[2.000]
∅ 63.50
[2.500]
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
littelfuse.com
56.34
[2.218]
Stud Size: M12 (1/2”)
Recommended Torque: 54 Nm (477.94 in-lb)
4 of 12
© 2017 Littelfuse POWR-GARD® Products
Rev: 110317
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
Time Current Curve
40000
50000
60000
70000
80000
90000
100000
30000
20000
4000
5000
6000
7000
8000
9000
10000
3000
2000
400
500
600
700
800
900
1000
300
200
40
50
60
70
80
90
100
30
20
4
5
6
7
8
9
10
3
2
100
90
80
70
60
50
40
100
90
80
70
60
50
40
30
30
20
20
10
9
8
7
6
5
4
10
9
8
7
6
5
4
3
3
2
2
- 60A
1
0.9
0.8
0.7
0.6
0.5
04
0.4
1
0.9
0.8
0.7
0.6
0.5
04
0.4
- 50A
- 40A
- 35A
0.3
0.3
0.0003
0 0003
0.0002
0.0002
0.0001
0.0001
40000
50000
60000
70000
80000
90000
100000
0.0003
0 0003
30000
0.001
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
20000
0.001
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
4000
5000
6000
7000
8000
9000
10000
0.002
3000
0.003
0.002
2000
0.003
400
500
600
700
800
900
1000
0.01
0.009
0.008
0.007
0.006
0.005
0.004
300
0.01
0.009
0.008
0.007
0.006
0.005
0.004
200
0.02
40
50
60
70
80
90
100
0.03
0.02
30
0.03
20
0.1
0.09
0.08
0.07
0.06
0.05
0.04
4
5
6
7
8
9
10
0.1
0.09
0.08
0.07
0.06
0.05
0.04
3
0.2
2
0.2
1
MELTING (PR
RE‐ARCING) TIME IN SEC
CONDS
1
L50QS Series
PROSPECTIVE R.M.S CURRENT IN AMPERE
TEST VOLTAGE:
500V
TIME CONSTANT/POWER FACTOR:
L50QS 35A - 800A
BASIS FOR DATA:
littelfuse.com
FUSE CATALOG NUMBER:
LITTELFUSE, INC.
CHICAGO, IL. USA
5 of 12
DRAWN BY: LLL
DATE:
10/14/2015
REVISION: A
DRAWING NO.:
© 2017 Littelfuse POWR-GARD® Products
Rev: 110317
SHEET 2 OF 4
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
Time Current Curve
200000
60000
70000
80000
90000
100000
50000
40000
30000
20000
6000
7000
8000
9000
10000
5000
4000
3000
2000
600
700
800
900
1000
500
400
300
200
100
L50QS Series
100
90
80
70
60
50
40
100
90
80
70
60
50
40
30
30
20
20
- 600A
- 500A
10
9
8
7
6
5
4
10
9
8
7
6
5
4
- 450A
3
3
2
- 200A
- 175A
1
0.9
0.8
0.7
0.6
0.5
0.4
1
0.9
0.8
0.7
0.6
0.5
0.4
- 150A
- 125A
0.0003
0.0003
0.0002
0.0002
0.0001
0.0001
200000
0.001
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
60000
70000
80000
90000
100000
0.001
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
50000
0.002
40000
0 003
0.003
0.002
30000
0 003
0.003
20000
0.01
0.009
0.008
0.007
0.006
0.005
0.004
6000
7000
8000
9000
10000
0.01
0.009
0.008
0.007
0.006
0.005
0.004
5000
0.02
4000
0.03
0.02
3000
0.03
2000
0.1
0.09
0.08
0.07
0.06
0.05
0.04
600
700
800
900
1000
0.1
0.09
0.08
0.07
0.06
0.05
0.04
500
0.2
400
0.2
300
0.3
200
0.3
100
MELTING (PR
RE‐ARCING) TIME IN SEC
CONDS
2
PROSPECTIVE R.M.S CURRENT IN AMPERE
TEST VOLTAGE:
500V
TIME CONSTANT/POWER FACTOR:
L50QS 35A - 800A
BASIS FOR DATA:
littelfuse.com
FUSE CATALOG NUMBER:
LITTELFUSE, INC.
CHICAGO, IL. USA
6 of 12
DRAWN BY: LLL
DATE:
10/14/2015
REVISION: A
© 2017 Littelfuse POWR-GARD® Products
Rev: 110317
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
Time Current Curve
100
90
80
70
60
50
40
200000
60000
70000
80000
90000
100000
50000
40000
30000
20000
6000
7000
8000
9000
10000
5000
4000
3000
2000
600
700
800
900
1000
500
400
300
200
100
L50QS Series
100
90
80
70
60
50
40
- 800A
30
30
- 700A
20
20
- 400A
- 350A
10
9
8
7
6
5
4
- 300A
- 275A
3
3
- 250A
2
1
0.9
0.8
0.7
0.6
0.5
0.4
- 225A
2
- 100A
1
0.9
0.8
0.7
0.6
0.5
0.4
- 90A
- 80A
- 70A
0.3
0.3
0.2
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.03
0.02
0.02
0.01
0.009
0.008
0.007
0.006
0.005
0.004
0.01
0.009
0.008
0.007
0.006
0.005
0.004
0 003
0.003
0 003
0.003
0.002
0.002
0.001
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
0.001
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
200000
60000
70000
80000
90000
100000
50000
40000
30000
20000
6000
7000
8000
9000
10000
5000
4000
3000
2000
600
700
800
900
1000
500
0.0001
400
0.0001
300
0.0003
0.0002
200
0.0003
0.0002
100
MELTING (PRE‐ARCING) TIME IN SEC
CONDS
10
9
8
7
6
5
4
- 325A
PROSPECTIVE R.M.S CURRENT IN AMPERE
TEST VOLTAGE:
500V
TIME CONSTANT/POWER FACTOR:
L50QS 35A - 800A
BASIS FOR DATA:
littelfuse.com
FUSE CATALOG NUMBER:
LITTELFUSE, INC.
CHICAGO, IL. USA
7 of 12
DRAWN BY: LLL
DATE:
10/14/2015
REVISION: A
DRAWING NO.:
© 2017 Littelfuse POWR-GARD® Products
Rev: 110317
SHEET 4 OF 4
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
Peak Let-Thru Curve
200,000
60,000
70,000
80,000
90,000
100,000
50,000
40,000
30,000
20,000
6,000
7,000
8,000
9,000
10,000
5,000
4,000
3,000
2,000
600
700
800
900
1,000
500
400
300
200
100
L50QS Series
100,000
90,000
100,000
90,000
80,000
80,000
70,000
70,000
800A -
60,000
50,000
60,000
50,000
600A -
40,000
40,000
400A -
30,000
30,000
200A 100A -
20,000
60A -
10,000
9,000
8,000
10,000
9,000
8,000
7,000
7,000
6,000
6,000
5,000
5,000
4,000
4,000
3,000
3,000
2,000
2,000
1,000
900
800
1,000
900
800
200,000
60,000
70,000
80,000
90,000
100,000
50,000
20,000
40,000
100
30,000
100
6,000
7,000
8,000
9,000
10,000
200
5,000
200
4,000
300
3,000
300
2,000
400
600
700
800
900
1,000
400
500
500
400
600
500
300
700
600
200
700
100
PEAK LET- THRU IN AMPERES
20,000
AVAILABLE FAULT CURRENT
SYMMETRICAL R.M.S. AMPERES
TEST VOLTAGE:
littelfuse.com
BASIS FOR DATA:
TIME CONSTANT/POWER FACTOR:
8 of 12
FUSE CATALOG NUMBER:
© 2017 Littelfuse POWR-GARD® Products
L50QS 60A - 800A
DRAWN BY: LLL
Rev: 110317
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
Temperature De-rating Curve (Temperature of Air Immediately Surrounding Fuse)
L50QS Series
PERCENT OF UPRATING
30%
20%
10%
0
0
10%
30%
40%
PERCENT OF DOWNRATING
20%
50%
-60°C
-76°F
-40°C
-40°F
-20°C
-4°F
0°C
32°F
20°C
68°F
40°C
104°F
60°C
140°F
80°C
176°F
100°C
212°F
120°C
248°F
140°C
284°F
AMBIENT TEMPERATURE
TEST VOLTAGE:
TIME CONSTANT/POWER FACTOR:
FUSE CATALOG NUMBER:
L50QS Series
BASIS FOR DATA:
LITTELFUSE, INC.
littelfuse.com
CHICAGO, IL. USA
9 of 12
TEMPERATURE RE-RATING CURVE
DRAWN BY: LLL
08/14/2017
DATE:
A
REVISION:
DRAWING NO.:
© 2017 Littelfuse POWR-GARD® Products
SHEET 2 OF 2
FCC11-L50QS
Rev: 110317
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
Total Clearing I2t Correction Factor Curve
L50QS Series
500
400
300
200
100
TOTAL CLEARING I2T CORRECTION FA
ACTOR
1
1
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
0.5
0.5
0.4
0.4
- 35A - 800A
0.3
0.3
0.2
0.2
0.1
0.1
500
400
300
200
100
OPERATING VOLTAGE IN VOLT
TEST VOLTAGE: 100V - 500V
TIME CONSTANT/POWER FACTOR:
L50S 35A
35-800A
L50QS
- 800A
BASIS FOR DATA:
littelfuse.com
FUSE CATALOG NUMBER:
LITTELFUSE, INC.
CHICAGO, IL. USA
10 of 12
DRAWN BY: LLL
DATE:
01/26/2015
10/30/2015
REVISION: A
© 2017 Littelfuse POWR-GARD® Products
Rev: 110317
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
Watts Loss Correction Factor Curve
L50QS Series
100
90
80
70
60
50
40
30
WATTS LO
OSS CORRECTION FACTTOR
1
1
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
0.5
0.5
0.4
0.4
- 35A - 800A
0.3
0.3
0.2
0.2
0.1
0.1
100
90
80
70
60
50
40
30
PERCENT OF RATED CURRENT (%)
TEST VOLTAGE: 500V
TIME CONSTANT/POWER FACTOR:
L50S 35-800A
L50QS
35A-800A
BASIS FOR DATA:
littelfuse.com
FUSE CATALOG NUMBER:
LITTELFUSE, INC.
CHICAGO, IL. USA
11 of 12
DRAWN BY: LLL
DATE:
01/26/2015
10/30/2015
REVISION: A
© 2017 Littelfuse POWR-GARD® Products
Rev: 110317
POWR-SPEED™ Fuse Datasheet
L50QS SERIES HIGH-SPEED ROUND BODY FUSES
Peak Arc Voltage Curve
L50QS Series
PEAK ARC VOLTAGE IN VOLTT
500
400
300
200
100
1000
1000
900
900
800
800
700
700
600
600
500
500
400
400
300
300
200
200
100
100
500
400
300
200
100
OPERATING VOLTAGE IN VOLTS
TEST VOLTAGE: 100V-500V
TIME CONSTANT/POWER FACTOR:
FUSE CATALOG NUMBER:
L70S 35A
35-800A
- 800A
BASIS
FOR DATA:
Disclaimer Notice
- Littelfuse
products are not designed for, and shall not be used for, any purpose (including, without limitation,L50QS
automotive,
military,
aerospace, medical, life-saving, life-sustaining
or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal
BY: granted
LLL
injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation.DRAWN
Warranties
by Littelfuse shall be deemed void for products used for any
purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims orDATE:
damages arising
out of products used in applications not expressly intended by
01/26/2015
10/30/2015
IL. USA
Littelfuse as set forth in applicable Littelfuse documentation.CHICAGO,
The sale and use
of Littelfuse products is subject to Littelfuse
Terms and
REVISION:
A Conditions of Sale, unless otherwise agreed by Littelfuse.
Littelfuse.com/Product-Disclaimer
DRAWING NO.:
SHEET 2
3 OF 2
3
LITTELFUSE, INC.
MAX ARC VOLTAGE
ARC VOLTAGE
VARIATION CURVE
littelfuse.com
12 of 12
- THIS DATA IS GENERATED IN EXCEL -
FCC09-L50QS
FCC0-
© 2017 Littelfuse POWR-GARD® Products
Rev: 110317
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