Littelfuse KLC User Manual

POWR-GARD® Fuse Datasheet

TRADITIONAL SEMICONDUCTOR FUSES

150/250/500/600/700 VAC • Very Fast-Acting • 1-1200 A

Ordering Information

Specifications

Voltage Ratings

L15S: 150 VAC/DC (1 – 60 A)
150 VAC (70 – 1000 A)
100 VDC (70 – 1000 A)
L25S: 250 VAC/DC (1 – 200 A)
250 VAC (225 – 800 A)
200 VDC (225 – 800 A)
L50S: 500 VAC/450 VDC
L60S: 600 VAC
KLC: 600 VAC
L70S: 700 VAC/650 VDC

L25S series fuses are Littelfuse Certified for DC ratings
shown in Rating Table.

Interrupting Rating

AC: 200 k A rms
(L15S series 100 kA)
DC: 20 kA

Ampere Range 1 – 1200 A See Rating Table for
ratings available in each series.
Approvals UL Recognized (File: E71611)
CSA Recognized (File: LR29862)

Recommended Fuse Holders

1LFS101/1LFS102
LSCR001/LSCR002

Web Resources

For additional information, visit:

littelfuse.com/semi

AMPERE

RAT INGS

1 L15S001 L25S001 – L60S001 KLC001 –
2 L15S0 02 L25S002 – L60S002 KLC002 –
3 L15S003 L25S003 – L60S003 KLC003 –
4 L15S0 04 L25S004 – L60S004 KLC004 –
5 L15S005 L25S005 – L60S005 KLC005 –
6 L15S006 L25S006 – L60S006 KLC006 –
7 L15S0 07 – – – KLC007 –
8 L15S0 08 L25S008 – L60S008 KLC008 –

9 L15S0 09 – – – – –
10 L15 S010 L25S 010 L50S010 L60S010 KLC010 L70S010
12 L15 S012 L 25S012 L50S012 L60S012 KLC 012 –
15 L15 S015 L25S 015 L50S015 L60S015 KLC 015 L70S015

1

2

17

⁄
20 L15S020 L25S020 L50S020 L60S020 KLC020 L70S020
25 L15S02 5 L25S025 L50S025 L60S025 KLC025 L70S025
30 L15 S03 0 L25S030 L50S030 L60S030 KLC030 L70S030
35 L15S 035 L25S035 L50S035 L60S035 KLC035 L70S035
40 L15 S04 0 L25S040 L50S040 L60S040 KLC040 L70S040
45 L15 S04 5 L25S045 – L60S045 KLC045 –
50 L15S050 L25S050 L50S050 L60S050 KLC050 L70S050
60 L15S060 L25S060 L50S060 L60S060 KLC060 L70S060
70 L15S070 L25S070 L50S070 L60S070 KLC070 L70S070
80 L15S080 L25S080 L50S080 L60S080 KLC080 L70S080
90 L15 S09 0 L25S090 L50S090 L60S090 KLC090 L70S090

100 L15S 100 L 25 S100 L50S100 L60S100 KLC100 L70S100
110 – – – – K LC110 –
125 L15S125 L25S125 L5 0S125 L60S125 K LC125 L 70 S125
150 L15S150 L25 S15 0 L50S150 L60S150 K LC 150 L70S150
175 – L25 S175 L50 S175 L6 0S175 KLC175 L70S175
200 L15S 200 L25S200 L50S200 L60S200 KLC200 L70S200
225 – L25S225 L50S225 L60S225 KLC225 L70S225
250 L15S25 0 L25S250 L50S250 L60S250 KLC250 L70S250
275 – L25S275 L50S275 – – –
300 L15S300 L25S300 L50S300 L60S300 KLC300 L70S300
350 L15S350 L25S350 L50S350 L60S350 KLC350 L70S350
400 L15 S400 L25S400 L50S400 L60S400 KLC400 L70S400
450 L15 S45 0 L25S450 L50S450 L60S450 KLC450 L70S450
500 L15S500 L25S500 L50S500 L60S500 KLC500 L70S500
550 – – L50S550 – – –
600 L15S600 L25S600 L50S600 L60S600 KLC600 L70S600
700 – L25S700 L50S700 L60S700 KLC700 L70S700
800 L15 S80 0 L25S800 L50S800 L60S800 KLC800 L70S800

900 – – LA50P9004 – – LA70P9004
1000 L15S1000 – LA50P10004 – – LA70P10004
1200 – – LA50P12004 – – LA7 0P1200 4

‡

KLC series fuses are recommended for replacement use only.

L15S L25S L50S L60S KLC

– – – L6 0S17. 5 K LC17 .5 –

SERIES ORDERING NUMBER

‡

L70S

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Rev: 4-E-012714

POWR-GARD® Fuse Datasheet

TRADITIONAL SEMICONDUCTOR FUSES

Dimensions

AMPERE

RAT ING

FIG.
NO.

A B C D E F G H

DIMENSIONS INCHES (mm)

L15S Series, 150 VAC

1 – 30 1 11⁄2 (3 8 .1) —

31 – 60 1 2 (50.8) —

61 – 450 3 1

451 – 1000 3 1

5

⁄32 (29.4) 17⁄8 (4 7. 6) 23⁄16 (55.6) 221⁄32 (67.5) 1 (25.4)43⁄64 (17.1)5⁄16 (7.9 )3⁄16 (4.8)

1

⁄4 (31.8) 115⁄16 (49.2) 29⁄16 (6 5.1) 31⁄2 (88.9) 11⁄2 (3 8 .1) 1 (25.4)13⁄32 (10.3)1⁄4 (6.4)

3

⁄8 (9.5)13⁄32 (10.3) — — — —

5

⁄8 (15.9)13⁄16 (20.6) — — — —

L25S Series, 250 VAC

1 – 30 1 2 (50.8) —

31 – 60 2 1

61 – 200 3 1
201 – 700 3 1
701 – 800 3 1

5

⁄8 (41.3) 21⁄4 (5 7.2) 21⁄2 (63.5) 33⁄16 (81.0)13⁄16 (20.6)23⁄32 (18.3)11⁄32 (8.7)1⁄8 (3.2)

5

⁄8 (41.3) 25⁄16 (58.7) 27⁄16 (61. 9) 31⁄8 (79.4) 17⁄32 (31.0) 1 (25.4)5⁄16 (7.9 )3⁄16 (4.8)

19

⁄32 (40.5) 29⁄32 (5 7.9) 229⁄32 (73.8) 327⁄32 (97.6) 11⁄2 (3 8 .1) 1 (25.4)13⁄32 (10.3)1⁄4 (6.4)

19

⁄32 (40.5) 29⁄32 (5 7.9) 229⁄32 (73.8) 327⁄32 (97.6) 2 (50.8) 11⁄2 (3 8 .1)13⁄32 (10.3)1⁄4 (6.4)

1

⁄2 (12.7)9⁄16 (14.3) — — — —

L50S Series, 500 VAC / 450 VDC

10 – 30 1 2 (50.8) —
31 – 60 2 1

61 – 100 3 2
101 – 200 3 2
201 – 400 3 2
401 – 600 3 2
601 – 80 0 3 2

5

⁄8 (41.3) 21⁄4 (5 7.2) 21⁄2 (63.5) 33⁄16 (81.0)13⁄16 (20.6)23⁄32 (18.3)11⁄32 (8.7)1⁄8 (3.2)

1

⁄8 (54.0) 211⁄16 (68.3) 3 (76.2) 35⁄8 (9 2.1) 1 (25.4) . 6 7 0 (17.0)11⁄32 (8.7)1⁄8 (3.2)

1

⁄8 (54.0) 213⁄16 (71.4) 215⁄16 (74.6) 35⁄8 (9 2.1) 17⁄32 (31.0) .895 (22.7)5⁄16 (7.9 )3⁄16 (4.75)

3

⁄32 (53.2) 225⁄32 (70.6) 313⁄32 (86.5) 411⁄32 (110 .3) 11⁄2 (3 8 .1) 1 (25.4)13⁄32 (10.3)1⁄4 (6.4)

7

⁄32 (56.4) 229⁄32 (73.8) 317⁄32 (89.7) 415⁄32 (113.5) 2 (50.8) 11⁄2 (3 8 .1)13⁄32 (10.3)1⁄4 (6.4)

7

⁄32 (56.4) 49⁄32 (108.7) 45⁄8 (117.5) 615⁄32 (164.3) 21⁄2 (63.5) 2 (5 0.8)17⁄32 (13.5)3⁄8 (9.5)

1

⁄2 (12.7)9⁄16 (14.3) — — — —

L60S Series, 600 VAC

1 – 30 1 5 ( 12 7.0) —

31 – 60 2 2

61 – 100 2 2
101 – 200 2 2

201 – 400 2 2
401 – 600 2 2
601 – 80 0 2 3

25

⁄32 (70.6) 37⁄16 (8 7.3) 311⁄16 (93.7) 43⁄8 (111.1)13⁄16 (20.6)23⁄32 (18.3)11⁄32 (8.7)1⁄8 (3.2)

29

⁄32 (73.8) 317⁄32 (89.7) 325⁄32 (96.0) 415⁄32 (113.5) 11⁄16 (2 7.0)23⁄32 (18.3)11⁄32 (8.7)1⁄8 (3.2)

29

⁄32 (73.8) 39⁄16 (90.5) 33⁄4 (95.3) 413⁄32 (111.9) 15⁄16 (33.3) 1 (25.4)5⁄16 (7.9 )3⁄16 (4.8)

29

⁄32 (73.8) 331⁄32 (100.8) 45⁄32 (105.6) 51⁄8 (130.2) 137⁄64 (4 0 .1) 1 (25.4)13⁄32 (10.3)1⁄4 (6.4)

7

⁄8 (73.0) 331⁄32 (100.8) 49⁄64 (105.2) 51⁄8 (130.2) 21⁄16 (52.8) 11⁄2 (3 8 .1)13⁄32 (10.3)1⁄4 (6.4)

1

⁄32 (77.0) 55⁄32 (133.4) 511⁄32 (135.7) 71⁄4 (184 .2) 21⁄2 (63.5) 2 (50.8)17⁄32 (13.5)3⁄8 (9.5)

5

⁄8 (15.9)13⁄16 (20.6) — — — —

L70S Series, 700 VAC / 650 VDC

10 – 30 1 2 (50.8) —
31 – 60 3 2

61 – 100 3 2
101 – 200 3 2
201 – 400 3 2
401 – 600 3 2

601 – 80 0 4 3

7

⁄8 (73.0) 37⁄16 (8 7.3) 325⁄32 (96.0) 43⁄8 (111.1) 1 (25.4)43⁄64 (17.1)11⁄32 (8.7)1⁄8 (3.2)

7

⁄8 (73.0) 39⁄16 (90.5) 311⁄16 (93.7) 43⁄8 (111.1) 17⁄32 (31.0)29⁄32 (22.9)5⁄16 (7.9 )3⁄16 (4.8)

27

⁄32 (72.2) 317⁄32 (89.7) 45⁄32 (105.6) 53⁄32 (129.4) 11⁄2 (3 8 .1) 1(25.4)13⁄32 (10.3)1⁄4 (6.4)

27

⁄32 (72.2) 317⁄32 (89.7) 45⁄32 (105.6) 53⁄32 (129.4) 2 (50.8) 11⁄2 (3 8 .1)13⁄32 (10.3)1⁄4 (6.4)

27

⁄32 (72.2) 429⁄32 (124.6) 51⁄4 (133.4) 73⁄32 (180.2) 21⁄2 (63.5) 2 (5 0.8)17⁄32 (13.5)3⁄8 (9.5)

5

⁄16 (8 4.1) 55⁄16 (134.9) 613⁄16 (173.0) — 27⁄8 (73.0) 2 (50.8)5⁄8 (15.9)

1

⁄2 (12.7)9⁄16 (14.3) — — — —

KLC Series, 600 VAC

1 – 30 2 17⁄8 (4 7. 6) 21⁄2 (63.5) — 27⁄8 (73.0)9⁄16 (14.3)13⁄32 (10.3)1⁄4 (6.4)

31 – 60 2 2

61 – 100 3 2
101 – 200 3 2
201 – 400 3 2
401 – 800 3 2

3

⁄4 (69.9) 33⁄8 (85.7) 35⁄8 (9 2.1) 45⁄16 (109.5)13⁄16 (20.6)23⁄32 (18.3)11⁄32 (8.7)1⁄8 (3.2)

7

⁄8 (73.0) 321⁄32 (92.9) 41⁄16 (103.2) 5 (12 7. 0) 1 (25.4)3⁄4 (19 .1)13⁄32 (10.3)1⁄8 (3.2)

27

⁄32 (72.2) 317⁄32 (89.7) 43⁄8 (111.1) 53⁄32 (129.4) 11⁄2 (3 8 .1) 1 (25.4)13⁄32 (10.3)1⁄4 (6.4)

27

32

⁄

(72.2) 421⁄32 (118 .3) 427⁄32 (123.0) 61⁄4 (158.8) 2 (50.8) 15⁄8 (41.3)9⁄16 (14.3)1⁄4 (6.4)

27

32

⁄

(72.2) 421⁄32 (118 .3) 511⁄32 (135.7) 61⁄4 (158.8) 21⁄2 (63.5) 2 (5 0.8)9⁄16 (14.3)3⁄8 (9.5)

H:
J:

3

⁄64 (1.2 )

3

⁄8 (9.5)

5

⁄16 (7.9 )

D

C

A

Fig. 1

F

G

A
B
C
D

H

E

Fig, 2

F

G

A
B
C
D

H

E

Fig. 3

F

G

A
B
C

J

H

E

Fig. 4

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Rev: 4-E-012714

POWR-GARD® Fuse Datasheet

LA15QS ALTERNATE DIMENSION SEMICONDUCTOR FUSES

150 VAC • Very Fast-Acting • 1-6000 A

LA15QS Series

AMPERE

RAT ING

10 LA15 QS10-2 2 0.019 2.6
12 LA15QS12-2 2 0.030 3

15 LA15 QS15-2 2 0.042 3
20 LA15QS20-2 2 0.072 4
25 L A15QS25 -2 2 0.14 5.2
30 L A15QS30 -2 2 0.25 5.6
35 L A15QS3 5-1 1 0.21 9
40 L A15 QS4 0-1 1 0.28 10
40 LA15QS40-4TI 4TI 0.39 3.1
45 L A15QS 45-1 1 0.34 12
50 L A15QS 50-1 1 0.47 13
50 LA15Q S5 0-4 4 0.64 4
55 L A15QS5 5-1 1 Contact Factory Contact Factory
60 L A15QS6 0-1 1 0.94 14
70 L A15QS70-4 4 2 5.6
70 LA15QS70-4TI 4TI 2 5.6
80 LA15Q S8 0-4 4 2.5 8
80 LA15QS80-4TI 4TI 2.5 8
90 LA15Q S9 0-4 4 3 .1 9

100 LA15Q S100-4 4 3.6 10
100 LA15QS100-4TI 4TI 3.6 10
130 LA15Q S130-4 4 5.3 14
130 LA15QS130-4TI 4TI 5.3 14
150 L A15QS15 0-4 4 6.8 16
150 L A15QS15 0-4 IL 4IL 6.8 16

150 LA15Q S15 0-4TI 4TI 6.8 16
200 LA15QS200-4 4 9 22
200 LA15QS200-4IL 4IL 9 22

CATA LOG
NUMBER

1 LA15QS1-2 2 0.0002 0.68
3 LA15QS3 -2 2 0.003 1.7
4 LA15 QS4 -2 2 0.007 2.1
5 LA15QS5 -2 2 0.012 2.8
6 LA15QS6 -2 2 0.022 3.1
7 LA15Q S7-2 2 0.011 2.2
8 LA15QS8 -2 2 0.015 2.5

MOUNTING

TYPE

MAXIMUM

CLEARING I

2

VAC (A

s x 103)

2

t @150

WATTS LOSS

@ RAT ED

CURREN T (W)

AMPERE

RAT ING

250 L A15QS25 0-4 4 15 22
250 LA15QS250-4TI 4TI 15 27
300 L A15QS 30 0-4 4 22 33
300 L A15QS 300 -4IL 4IL 22 33
300 LA15QS300-4TL 4TI 22 33
350 L A15QS35 0-4 4 32 40
350 LA15QS350-4TI 4TI 32 40
400 LA15QS400-4 4 40 45
400 LA15QS400-4IL 4IL 40 45
400 LA15QS400-4TI 4TI 40 45
450 LA15Q S45 0-4 4 50 50
450 L A15QS45 0-4 IL 4IL 50 50
500 LA15Q S500- 4 4 90 30
500 L A15QS50 0-4 IL 4IL 90 30
600 L A15Q S600- 4 4 130 35
600 L A15QS 60 0-4 IL 4IL 130 35

800 LA15Q S800- 4 4 290 57
1000 LA15QS1000-4 4 520 75
1000 LA15QS1000-4IL 4IL 520 75
1000 LA15QS1000-4TI 4TI 520 75
1000 LA15QS1000-128 128 540 88
1000 LA15QS1000-128IL 12 8IL 540 88
1200 LA15QS1200 -128 12 8 680 100
1200 LA15QS1200 -128IL 128IL 680 100
150 0 L A15Q S1500 -128 128 1200 130
150 0 L A15Q S1500-128IL 128IL 1200 13 0
2000 LA15QS2000-128 128 1900 165
2000 LA15QS2000-128IL 12 8IL 1900 165
2500 LA15QS2500-128 128 3200 195
2500 LA15QS2500-128IL 128 IL 3200 195
3000 LA15QS3000-128 12 8 4800 240
3000 LA15QS3000-128IL 128IL 4800 240
3500 L A15Q S35 00-128 12 8 6500 260
4000 LA15QS4000-128 12 8 8500 270
4000 LA15QS4000-128IL 128IL 8500 270
5000 LA15QS5000-128 12 8 Contact Factory Contact Factory
6000 LA15QS6000-128 128 Contact Factory Contact Factory

CATA LOG
NUMBER

MOUNTING

TYPE

MAXIMUM

CLEA RING I

2

VAC (A

s x 103)

2

t @150

WATTS LOSS

CURREN T (W)

@ RAT ED

Specifications

Voltage Rating AC: 150 V
DC: 150 V

Interrupting Rating 100 k A
Ampere Range 1 – 6000 A
Approvals UL Recognized

Figure 1 Figure 2

Figure 3 Figure 4 Figure 5

Web Resources

For additional information, visit: littelfuse.com/la15qs

Dimensions

AMPERE

RAT INGS

1 – 30 2 1 1.5 0 (38.1) 0.41 (10.4) – – – – – – –

35 – 60 1 1 2.00 (50.8) 0.81 (20.6) – – – – – – –

40 – 45 0 4, 4TI*, 4IL* 2 2.66 (67.6) 1.00 (2 5. 4) 1.16 (29.5) 2.19 (5 5.6) 1.91 (48.5) 0.31 (7.9) 0.88 (22.4) 0.19 (4. 8) –
500 – 1000 4, 4TI*, 4IL* 2 3.5 0 (88.9) 1. 5 0 ( 38.1) 1.25 (3 1.8) 2.56 (65.0) 1.94 (49.3) 0.41 (10.4) 1.0 0 (25 .4 ) 0.25 (6.4) –
750 – 2000 12 8, 12 8I L* 3 1. 8 8 (4 7.9) 2.00 (50.8) 1.6 3 (41.4) 1.75 (44.5) 1.00 (25.4) – – –

2500 – 3000 128, 128IL* 3 1. 88 ( 47.9 ) 3.00 (76.2) 1.6 3 (41.4) 2.50 (63.5) 1.5 0 (38.1) – – –
3500 – 4000 128, 128IL* 4 1. 88 (4 7. 9) 3.50 (88.9) 1.63 (41. 4) 3.00 (76.2) 1.06 (27.0) 1.06 (27.0) – –
5000 – 6000 12 8 5 2.38 (60.5) 5.75 (146) 1. 88 (4 7.7) 5.00 (127) 1.5 0 (38.1) 1.50 (3 8.1) – –

*Optional Trigger Actuator (IL). Optional Trigger Indicator ( TI) see web for dimensions.

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MOUNTING

TYPE

FIGURE

NO.

DIMENSIONS INCHES (mm)

A B C D E F G H

3 of 8

Dimensions for reference only.

TAP

3

⁄8-24-1⁄2 deep

1

⁄2-20-1⁄2 deep

1

⁄2-20-1⁄2 deep

1

⁄2-20-1⁄2 deep

Rev: 4-E-012714