LITTELFUSE FLSR_ID

FLNR_ID/FLSR_ID IndicatorTM Class RK5 Fuses
250/600 VAC
■
Dual-Element, Time Delay
■
1/10 – 600 Amperes
SPECIFICATIONS
Voltage Ratings:
AC: 250 Volts (FLNR_ID);
600 Volts (FLSR_ID)
DC: 125 Volts (FLNR 1/10 – 30A);
125 Volts (FLNR_ID 35 – 600A);
300 Volts (FLSR_ID)
Interrupting Ratings: AC: 200,000 amperes rms
symmetrical
300,000 amperes rms
symmetrical
(Littelfuse self-certified)
DC: 20,000 amperes
Ampere Range: 1/10 – 600 amperes
Approvals: Standard 248-12, Class RK5
UL Listed (File No: E81895)
CSA Certified (File No: LR29862)
MSHA 300 Volt Listing (FLSR_ID)
QPL: Federal Specification WF-1814
1996
AMPERE RATINGS
6
⁄10 **
⁄10
8
⁄8
⁄10
15
⁄100
1
2
⁄10
11⁄8
1
⁄4
11⁄4
3
⁄10
14⁄10
4
⁄10
11⁄2
1
⁄2
16⁄10
**FLNR only
1
1
Littelfuse FLNR_ID/FLSR_ID IndicatorTM fuses provide visual
blown fuse indication at a glance. The patented state-of-theart solid state design provides maximum reliability and
superior performance characteristics in a true dual-element
design. The use of IndicatorTM fuses reduces down-time,
nuisance opening, increases safety, and can save thousands
of dollars in lost production time.
APPLICATIONS
Service entrance switches
Switchboard main and feeder switches
Motor control center mains and motor branch circuits
Individual fused combination motor controllers
Distribution panelboards
Industrial control panels
Protection of fully-rated panelboards and loadcenters
All general purpose circuits
18⁄10
2
21⁄4
21⁄2
28⁄10
3
32⁄10
31⁄2
4
41⁄2
5
56⁄10
6
61⁄4
7
71⁄2
8
9
10
12
15
171⁄2
20
25
30
35
40
45
50
60
70
75
80
90
100
110
125
150
175
200
225
250
300
350
400
450
500
600
NOTE: For 1/10 – 30 ampere 250 volt fuses, order nonindicating FLNR series fuses.
NOTE: All FLNR_ID fuses rated 35 – 600A are Indicator
fuses.
NOTE: All FLSR_ID fuses rated 1 amp and above are
Indicator fuses.
Example part number (series & amperage): FLSR100ID
RECOMMENDED FUSE BLOCKS
LR250 series (for FLNR_ID series fuses)
LR600 series (for FLSR_ID series fuses)
Refer to Fuse Block section of this catalog for additional
information.
FEATURES/BENEFITS
■
■
■
28
Reduce Down-Time — A glance at the indicating window
of a FLNR_ID or FLSR_ID IndicatorTM fuse pinpoints open
fuses immediately. If the window is dark, the fuse has
opened. It’s that simple. No fuse testing required.
Machine operators can immediately determine that there is
an open fuse and request maintenance personnel to bring
the proper replacement.
Reduce Nuisance Opening — FLNR_ID and FLSR_ID
IndicatorTM fuses have superior time-delay and cycling
characteristics which can lengthen fuse life and decrease
needless opening.
Reduce Fuse Inventory — Because FLNR_ID and
FLSR_ID IndicatorTM fuses have superior performance
characteristics they can be used on a variety of applications, thus decreasing fuse inventory.
■
■
Reduce Equipment Damage — FLNR_ID and FLSR_ID
IndicatorTM fuses have superior overload and short circuit
protection which can reduce equipment damage.
Reduce Accidents — The FLNR_ID and FLSR_ID
IndicatorTM fuses improve safety by minimizing exposure
to live circuits. Unlike other forms of blown fuse indication,
IndicatorTM fuses provide built-in blown fuse indication with
the power on or off. No second guessing whether a light
means a good or bad fuse and no current going across a
blown fuse to power a lighted accessory.
FLNR_ID/FLSR_ID IndicatorTM Class RK5 Fuses
250/600 VAC
Dual-Element, Time Delay
■
■
1/10 – 600 Amperes
A
A
F
K
G
B
D
REFER TO
FIG. NO.
70-600A
DIMENSIONS IN INCHES (mm in parentheses)
SERIES
A
B
C
D
E
F
G
H
J
K
FLNR
2
(50.8)
1/2
(12.7)
1/2
(12.7)
9/16
(14.3)
5/64
(2.0)
5/32
(4.0)
3/8
(9.5)
—
—
—
FLSR_ID
5
(127.0)
3/4
(19.1)
5/8
(15.9)
13/16
(20.6)
3/32
(2.4)
3/16
(4.8)
5/8
(15.9)
—
—
—
FLNR_ID
3
(76.2)
3/4
(19.1)
5/8
(15.9)
13/16
(20.6)
3/32
(2.4)
3/16
(4.8)
5/8
(15.9)
—
—
—
FLSR_ID
5-1/2
(139.7)
1
(25.4)
5/8
(15.9)
1-1/16
(27.0)
3/32
(2.4)
1/4
(6.4)
7/8
(22.2)
—
—
—
FLNR_ID
5-7/8
(149.2)
1
(25.4)
1-1/16
(27.0)
1-1/16
(27.0)
1/8
(3.2)
3/4
(19.1)
1-1/4
(31.8)
1/4
(6.4)
9/32
(7.1)
1/2
(12.7)
FLSR_ID
7-7/8
(200.0)
1-1/4
(31.8)
1-1/16
(27.0)
1-5/16
(33.3)
1/8
(3.2)
3/4
(19.1)
1-1/2
(38.1)
1/4
(6.4)
9/32
(7.1)
1/2
(12.7)
FLNR_ID
7-1/8
(181.0)
1-1/2
(38.1)
1-15/32
(37.3)
1-19/32
(40.5)
3/16
(4.8)
1-1/8
(28.6)
1-27/32
(46.8)
7/16
(11.1)
9/32
(7.1)
11/16
(17.5)
FLSR_ID
9-5/8
(244.5)
1-3/4
(44.5)
1-15/32
(37.3)
1-27/32
(46.8)
3/16
(4.8)
1-1/8
(28.6)
2-3/32
(53.2)
7/16
(11.1)
9/32
(7.1)
11/16
(17.5)
FLNR_ID
8-5/8
(219.1)
2
(50.8)
1-15/16
(49.2)
2-3/32
(53.2)
1/4
(6.4)
1-5/8
(41.3)
2-11/32
(59.5)
5/8
(15.9)
13/32
(10.3)
15/16
(23.8)
FLSR_ID
11-5/8
(295.3)
2-1/2
(63.5)
2
(50.8)
2-19/32
(65.9)
1/4
(6.4)
1-5/8
(41.3)
2-27/32
(72.2)
5/8
(15.9)
13/32
(10.3)
15/16
(23.8)
FLNR_ID
10-3/8
(263.5)
2-1/2
(63.5)
2-3/8
(60.3)
2-19/32
(65.9)
1/4
(6.4)
2
(50.8)
2-27/32
(72.2)
3/4
(19.1)
17/32
(13.5)
1-1/8
(28.6)
FLSR_ID
13-3/8
(339.7)
3
(76.2)
2-13/32
(61.1)
3-3/32
(78.6)
1/4
(6.4)
2
(50.8)
3-11/32
(84.93)
3/4
(19.1)
17/32
(13.5)
1-1/8
(28.6)
1
2
70 – 100
2
110 – 200
2
225 – 400
2
450 – 600
G
FIG. 2
1
35 – 60
D
J
C
FIG. 1
1/10 – 30
F
B
H
E
AMPERES
E
C
1000
800
600
400
300
200
1000
800
600
400
300
200
100
80
60
40
30
20
100
80
60
40
30
TIME IN SECONDS
20
10
8
6
4
3
2
10
8
6
4
3
2
.01
600
800
1000
300
400
200
60
80
100
30
40
20
6
8
10
2
.6
.8
1
.3
.4
.1
3
4
CURRENT IN AMPERES
CURRENT IN AMPERES
10000
8000
6000
4000
3000
2000
.01
.04
.03
1000
800
600
400
300
200
.02
.1
.08
.06
.04
.03
.02
100
80
60
40
30
20
.2
.1
.08
.06
10
8
6
4
3
2
.2
1
.4
.3
1
.8
.6
.4
.3
1
.8
.6
.2
TIME IN SECONDS
10A
15A
20A
25A
30A
FLSR_ID
2/10A
1/4A
3/10A
4/10A
1/2A
6/10A
8/10A
1A
1 1/4A
1 4/10A
2A
2 1/2A
4 1/2A
5A
7A
7 1/2A
9A
FLNR
1A
1.25A
1.6A
2A
2.5A
3A
4A
6A
For additional application information request Product Bulletin EL-4
29
FLNR_ID/FLSR_ID IndicatorTM Class RK5 Fuses
250/600 VAC
■
Dual-Element, Time Delay
■
FLNR_ID
60A
100A
FLSR_ID
400A 600A
200A
600
600
400
400
300
300
200
200
100
80
100
80
60
60
40
40
30
30
20
20
TIME IN SECONDS
1000
800
TIME IN SECONDS
1000
800
10
8
6
4
3
2
1
.8
200A
400A 600A
4
3
2
1
.8
100000
80000
60000
40000
30000
20000
10000
8000
6000
4000
3000
2000
1000
800
600
400
300
200
100
80
60
40
30
20
10
8
6
5
1000000
800000
600000
400000
300000
200000
100000
80000
60000
40000
30000
20000
.01
10000
8000
.01
6000
.02
4000
.03
.02
3000
.03
2000
.06
.05
.04
1000
800
.04
600
.1
.08
.06
400
.1
.08
300
.2
200
.3
.2
100
80
.4
.3
60
50
.6
CURRENT IN AMPERES
FLSR_ID
1000000
1000000
800000
800000
600000
600000
400000
400000
300000
300000
200000
200000
100000
100000
80000
600A
60000
400A
40000
200A
30000
100A
20000
60A
10000
8000
6000
4000
3000
2000
PEAK LET - THRU IN AMPERES
PEAK LET - THRU IN AMPERES
100A
60A
6
.4
FLNR_ID
30A
15A
10
8
.6
CURRENT IN AMPERES
600A
80000
400A
60000
50000
200A
40000
30000
100A
20000
60A
10000
30A
8000
6000
5000
15A
4000
3000
2000
200000
100000
80000
60000
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
40000
30000
20000
10000
8000
6000
4000
3000
2000
1000
800
600
300
400
200
100
200000
100000
80000
60000
40000
30000
20000
10000
8000
6000
4000
3000
100
2000
100
1000
200
800
300
200
600
400
300
300
600
400
400
800
600
200
1000
800
100
1000
AVAILABLE FAULT CURRENT
SYMMETRICAL R.M.S. AMPERES
30
1/10 – 600 Amperes