littelfuse.com © 2015 Littelfuse POWR-GARD® Products
Rev: 052215
POWR-GARD® Fuse Datasheet
1 of 8
Note: High-Speed fuses are designed for fixed installations. They are not intended for use in moving vehicle applications.
TRADITIONAL HIGH-SPEED FUSES
150/250/500/600/700 Vac • Very Fast-Acting • 1-1200 A
AMPERE
RATINGS
SERIES ORDERING NUMBER
L15S L25S L50S L60S KLC‡L70S
1L15S001 L25S001 –L60S001 KLC001 –
2L15S002 L25S002 –L60S002 KLC002 –
3L15S003 L25S003 –L60S003 KLC003 –
4L15S004 L25S004 –L60S004 KLC004 –
5L15S005 L25S005 –L60S005 KLC005 –
6L15S006 L25S006 –L60S006 KLC006 –
7L15S007 – – – KLC007 –
8L15S008 L25S008 –L60S008 KLC008 –
9L15S009 – – – – –
10 L15S010 L25S010 L50S010 L60S010 KLC010 L70S010
12 L15S012 L25S012 L50S012 L60S012 KLC012 –
15 L15S015 L25S015 L50S015 L60S015 KLC015 L70S015
171⁄2– – – L60S17.5 KLC17 .5 –
20 L15S020 L25S020 L50S020 L60S020 KLC020 L70S020
25 L15S025 L25S025 L50S025 L60S025 KLC025 L70S025
30 L15S030 L25S030 L50S030 L60S030 KLC030 L70S030
35 L15S035 L25S035 L50S035 L60S035 KLC035 L70S035
40 L15S040 L25S040 L50S040 L60S040 KLC040 L70S040
45 L15S045 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 L15S090 L25S090 L50S090 L60S090 KLC090 L70S090
100 L15S100 L25S100 L50S100 L60S100 KLC100 L70S100
110 – – – – KLC110 –
125 L15S125 L25S125 L50S125 L60S125 KLC125 L70S125
150 L15S150 L25S150 L50S150 L60S150 KLC150 L70S150
175 –L25S175 L50S175 L60S175 KLC175 L70S175
200 L15S200 L25S200 L50S200 L60S200 KLC200 L70S200
225 –L25S225 L50S225 L60S225 KLC225 L70S225
250 L15S250 L25S250 L50S250 L60S250 KLC250 L70S250
275 –L25S275 L50S275 – – –
300 L15S300 L25S300 L50S300 L60S300 KLC300 L70S300
350 L15S350 L25S350 L50S350 L60S350 KLC350 L70S350
400 L15S400 L25S400 L50S400 L60S400 KLC400 L70S400
450 L15S450 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 L15S800 L25S800 L50S800 L60S800 KLC800 L70S800
900 – – – – – –
1000 L15S1000 – – – – –
1200 – – – – – –
‡ KLC series fuses are recommended for replacement use only.
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 kA 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 ...................................121
LSCR001/LSCR002 .................................120
Web Resources
For additional information, visit:
littelfuse.com/high-speed
littelfuse.com © 2015 Littelfuse POWR-GARD® Products
Rev: 052215
POWR-GARD® Fuse Datasheet
2 of 8
Note: High-Speed fuses are designed for fixed installations. They are not intended for use in moving vehicle applications.
TRADITIONAL HIGH-SPEED FUSES
F
GA
B
CE
J
H
Fig. 4
A
B
C
D
F
G
E
H
Fig. 3
AMPERE
RATING
FIG.
NO.
DIMENSIONS INCHES (mm)
A B C D E F G H
L15S Series, 150 Vac
1 – 30 1 11⁄2 (38.1) —3⁄8 (9.5) 13 ⁄32 (10.3) — — — —
31 – 60 12 (50.8) —5⁄8 (15.9) 13 ⁄16 (20.6) — — — —
61 – 450 3 15⁄32 (29.4) 17⁄8 (47.6) 23⁄16 (55.6) 221⁄32 (67.5) 1 (25.4) 43⁄64 (17.1) 5⁄16 (7.9) 3⁄16 (4.8)
451 – 1000 3 11⁄4 (31.8) 115 ⁄16 (49.2) 29⁄16 (65.1) 31⁄2 (88.9) 11⁄2 (38.1) 1 (25.4) 13 ⁄32 (10.3) 1⁄4 (6.4)
L25S Series, 250 Vac
1 – 30 12 (50.8) —1⁄2 (12.7) 9⁄16 (14.3) — — — —
31 – 60 2 15⁄8 (41.3) 21⁄4 (57. 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)
61 – 200 3 15⁄8 (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)
201 – 700 3 119 ⁄32 (40.5) 29⁄32 (57.9) 229⁄32 (73.8) 327⁄32 (97.6) 11⁄2 (38.1) 1 (25.4) 13⁄32 (10.3) 1⁄4 (6.4)
701 – 800 3 119 ⁄32 (40.5) 29⁄32 (57.9) 229⁄32 (73.8) 327⁄32 (97.6) 2 (50.8) 11⁄2 (38.1) 13⁄32 (10.3) 1⁄4 (6.4)
L50S Series, 500 Vac / 450 Vdc
10 – 30 12 (50.8) —1⁄2 (12.7) 9⁄16 (14.3) — — — —
31 – 60 2 15⁄8 (41.3) 21⁄4 (57. 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)
61 – 100 3 21⁄8 (54.0) 211⁄16 (68.3) 3 (76.2) 35⁄8 (92.1) 1 (25.4) .670 (17.0) 11⁄32 (8.7) 1⁄8 (3.2)
101 – 200 3 21⁄8 (54.0) 213 ⁄16 (71.4) 215 ⁄16 (74.6) 35⁄8 (92.1) 17⁄32 (31.0) .895 (22.7) 5⁄16 (7.9) 3⁄16 (4.75)
201 – 400 3 23⁄32 (53.2) 225⁄32 (70.6) 313⁄32 (86.5) 411⁄32 (110.3) 11⁄2 (38.1) 1 (25.4) 13⁄32 (10.3) 1⁄4 (6.4)
401 – 600 3 2 7⁄32 (56.4) 229⁄32 (73.8) 317⁄32 (89.7) 415 ⁄32 (113.5) 2 (50.8) 11⁄2 (38.1) 13 ⁄32 (10.3) 1⁄4 (6.4)
601 – 800 3 27⁄32 (56.4) 49⁄32 (108.7) 45⁄8 (117.5) 615 ⁄32 (164.3) 21⁄2 (63.5) 2 (50.8) 17⁄32 (13.5) 3⁄8 (9.5)
L60S Series, 600 Vac
1 – 30 15 (127.0) —5⁄8 (15.9) 13 ⁄16 (20.6) — — — —
31 – 60 2 225⁄32 (70.6) 37⁄16 (87.3) 311 ⁄16 (93.7) 43⁄8 (111.1) 13 ⁄16 (20.6) 23⁄32 (18.3) 11 ⁄32 (8.7) 1⁄8 (3.2)
61 – 100 2 229⁄32 (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)
101 – 200 2 229⁄32 (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)
201 – 400 2 229⁄32 (73.8) 331⁄32 (100.8) 45⁄32 (105.6) 51⁄8 (130.2) 137⁄64 (40.1) 1 (25.4) 13⁄32 (10.3) 1⁄4 (6.4)
401 – 600 2 27⁄8 (73.0) 331⁄32 (100.8) 49⁄64 (105.2) 51⁄8 (130.2) 21⁄16 (52.8) 11⁄2 (38.1) 13 ⁄32 (10.3) 1⁄4 (6.4)
601 – 800 2 31⁄32 (7 7.0) 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)
L70S Series, 700 Vac / 650 Vdc
10 – 30 12 (50.8) —1⁄2 (12.7) 9⁄16 (14.3) — — — —
31 – 60 2 27⁄8 (73.0) 37⁄16 (8 7.3) 33⁄4 (95.3) 43⁄8 (111.1) 1 (25.4) 43⁄64 (17.1) 11 ⁄32 (8.7) 1⁄8 (3.2)
61 – 100 2 27⁄8 (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)
101 – 200 2 227⁄32 (72.2) 317⁄32 (89.7) 45⁄32 (105.6) 53⁄32 (129.4) 11⁄2 (38.1) 1(25.4) 13 ⁄32 (10.3) 1⁄4 (6.4)
201 – 400 2 227⁄32 (72.2) 317⁄32 (89.7) 45⁄32 (105.6) 53⁄32 (129.4) 2 (50.8) 11⁄2 (38.1) 13 ⁄32 (10.3) 1⁄4 (6.4)
401 – 600 2 227⁄32 (72.2) 429⁄32 (124.6) 51⁄4 (133.4) 73⁄32 (180.2) 21⁄2 (63.5) 2 (50.8) 17⁄32 (13.5) 3⁄8 (9.5)
601 – 800 4 35⁄16 (84.1) 55⁄16 (134.9) 613 ⁄16 (173.0) — 27⁄8 (73.0) 2 (50.8) 5⁄8 (15.9) H: 3⁄8 (9.5)
J: 5⁄16 (7.9)
KLC Series, 600 Vac
1 – 30 2 17⁄8 (47.6) 21⁄2 (63.5) — 27⁄8 (73.0) 9⁄16 (14.3) 13 ⁄32 (10.3) 1⁄4 (6.4) 3⁄64 (1.2)
31 – 60 2 23⁄4 (69.9) 33⁄8 (85.7) 35⁄8 (92.1) 45⁄16 (109.5) 13⁄16 (20.6) 23⁄32 (18.3) 11 ⁄32 (8.7) 1⁄8 (3.2)
61 – 100 3 27⁄8 (73.0) 321⁄32 (92.9) 41⁄16 (103.2) 5 (127.0) 1 (25.4) 3⁄4 (19.1) 13 ⁄32 (10.3) 1⁄8 (3.2)
101 – 200 3 227⁄32 (72.2) 317⁄32 (89.7) 43⁄8 (111.1) 53⁄32 (129.4) 11⁄2 (38.1) 1 (25.4) 13 ⁄32 (10.3) 1⁄4 (6.4)
201 – 400 3 227⁄32 (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)
401 – 800 3 227⁄32 (72.2) 421⁄32 (118.3) 511 ⁄32 (135.7) 61⁄4 (158.8) 21⁄2 (63.5) 2 (50.8) 9⁄16 (14.3) 3⁄8 (9.5)
E
H
F
GA
B
C
D
Fig, 2
A
C
D
Fig. 1
Dimensions
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POWR-GARD® Fuse Datasheet
3 of 8
Note: High-Speed fuses are designed for fixed installations. They are not intended for use in moving vehicle applications.
LA15QS ALTERNATE DIMENSION HIGH-SPEED FUSES
150 VAC • Very Fast-Acting • 1-6000 A
LA15QS Series
Specifications
Voltage Rating AC: 150 V
DC: 150 V
Interrupting Rating 100 kA
Ampere Range 1 – 6000 A
Approvals UL Recognized
AMPERE
RATING
CATALOG
NUMBER
MOUNTING
TYPE
MAXIMUM
CLEARING I2t @
150 Vac (A2s x 103)
WATTS LOSS
@ RATED
CURRENT (W)
1LA15QS1-2 20.0002 0.68
3LA15QS3-2 20.003 1.7
4LA15QS4-2 20.007 2.1
5LA15QS5-2 20.012 2.8
6LA15QS6-2 20.022 3.1
7LA15QS7-2 20.011 2.2
8LA15QS8-2 20.015 2.5
10 LA15QS10-2 20.019 2.6
12 LA15QS12-2 20.030 3
15 LA15QS15-2 20.042 3
25 LA15QS25-2 20.14 5.2
30 LA15QS30-2 20.25 5.6
35 LA15QS35-1 10.21 9
40 LA15QS40-1 10.28 10
40 LA15QS40-4TI 4TI 0.39 3.1
45 LA15QS45-1 10.34 12
50 LA15QS50-1 10.47 13
50 LA15QS50-4 40.64 4
55 LA15QS55-1 1Contact Factory Contact Factory
60 LA15QS60-1 10.94 14
70 LA15QS70-4 4 2 5.6
70 LA15QS70-4TI 4TI 25.6
80 LA15QS80-4 42.5 8
80 LA15QS80-4TI 4TI 2.5 8
90 LA15QS90-4 43.1 9
100 LA15QS100-4 43.6 10
100 LA15QS100-4TI 4TI 3.6 10
130 LA15QS130-4 45.3 14
130 LA15QS130-4TI 4TI 5.3 14
150 LA15QS150-4 46.8 16
150 LA15QS150-4IL 4IL 6.8 16
150 LA15QS150-4TI 4TI 6.8 16
200 LA15QS200-4 4 9 22
200 LA15QS200-4IL 4IL 922
AMPERE
RATING
CATALOG
NUMBER
MOUNTING
TYPE
MAXIMUM
CLEARING I2t @
150 Vac (A2s x 103)
WATTS LOSS
@ RATED
CURRENT (W)
250 LA15QS250-4 415 22
250 LA15QS250-4TI 4TI 15 27
300 LA15QS300-4 422 33
300 LA15QS300-4IL 4IL 22 33
300 LA15QS300-4TL 4TI 22 33
350 LA15QS350-4 432 40
350 LA15QS350-4TI 4TI 32 40
400 LA15QS400-4 440 45
400 LA15QS400-4IL 4IL 40 45
400 LA15QS400-4TI 4TI 40 45
450 LA15QS450-4 450 50
450 LA15QS450-4IL 4IL 50 50
500 LA15QS500-4 490 30
500 LA15QS500-4IL 4IL 90 30
600 LA15QS600-4 4130 35
600 LA15QS600-4IL 4IL 130 35
800 LA15QS800-4 4290 57
1000 LA15QS1000-4 4520 75
1000 LA15QS1000-4IL 4IL 520 75
1000 LA15QS1000-4TI 4TI 520 75
1000 LA15QS1000-128 128 540 88
1000 LA15QS1000-128IL 128IL 540 88
1200 LA15QS1200-128 128 680 100
1200 LA15QS1200-128IL 128IL 680 100
1500 LA15QS1500-128 128 1200 130
1500 LA15QS1500-128IL 128IL 1200 130
2000 LA15QS2000-128 128 1900 165
2000 LA15QS2000-128IL 128IL 1900 165
2500 LA15QS2500-128 128 3200 195
2500 LA15QS2500-128IL 128IL 3200 195
3000 LA15QS3000-128 128 4800 240
3000 LA15QS3000-128IL 128IL 4800 240
3500 L A15QS3500-128 128 6500 260
4000 LA15QS4000-128 128 8500 270
4000 LA15QS4000-128IL 128IL 8500 270
5000 LA15QS5000-128 128 Contact Factory Contact Factory
6000 LA15QS6000-128 128 Contact Factory Contact Factory
AMPERE
RATINGS
MOUNTING
TYPE
FIGURE
NO.
DIMENSIONS INCHES (mm)TAP
A B C D E F G H
1 – 30 2 1 1.50 (38.1) 0.41 (10.4) –––––– –
35 – 60 1 1 2.00 (50.8) 0.81 (20.6) –––––– –
40 – 450 4, 4TI*, 4IL* 22.66 (67.6) 1.13 (28.7) 1.16 (29.5) 2.19 (55.6) 1.91 (48.5) 0.31 (7.9) 0.88 (22.4) 0.19 (4.8) –
500 – 1000 4, 4TI*, 4IL* 23.50 (88.9) 1.50 (38.1) 1.25 (31.8) 2.56 (65.0) 1.94 (49.3) 0.41 (10.4) 1.00 (25.4) 0.25 (6.4) –
750 – 2000 128, 128IL* 31.8 8 (47.9) 2.00 (50.8) 1.63 (41.4) 1.75 (44.5) 1.00 (25.4) –––3⁄8-24-1⁄2 deep
2500 – 3000 128, 128IL* 31.88 (47.9) 3.00 (76.2) 1.63 (41.4) 2.50 (63.5) 1.5 0 (38.1) –––1⁄2-20-1⁄2 deep
3500 – 4000 128, 128IL* 41.8 8 (47.9) 3.50 (88.9) 1.63 (41.4) 3.00 (76.2) 1.06 (27.0) 1.06 (27.0) – – 1⁄2-20-1⁄2 deep
5000 – 6000 128 52.38 (60.5) 5.75 (146) 1.8 8 (47.7) 5.00 (127) 1.50 (38.1) 1.50 (38.1) – – 1⁄2-20-1⁄2 deep
*Optional Trigger Actuator (IL). Optional Trigger Indicator (TI) see web for dimensions.
Figure 1 Figure 2
Figure 3 Figure 4 Figure 5
Dimensions for reference only.
Dimensions
Web Resources
For additional information, visit: littelfuse.com/la15qs
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POWR-GARD® Fuse Datasheet
4 of 8
Note: High-Speed fuses are designed for fixed installations. They are not intended for use in moving vehicle applications.
LA30QS ALTERNATE DIMENSION HIGH-SPEED FUSES
300 VAC • Very Fast-Acting • 35-4500 A
Description
Littelfuse LA30QS series High-Speed protection fuses are
intended for the protection of Power Semiconductors such
as diodes, phase control SCR’s and other power high-speed
devices. The LA30QS is recommended for new applications
providing solutions for your critical protection needs for 300V
and less semiconductors.
Specifications
Voltage Rating AC: 300 V
DC: 300 V
Interrupting Rating 200 kA
Ampere Range 35 – 4500 A
Approvals UL Recognized
Web Resources
For additional information, visit: littelfuse.com/la30qs
AMPERE
RATING
CATALOG
NUMBER
MOUNTING
TYPE
MAXIMUM
CLEARING I2t
@300 VAC
(A2s X 103)
WATTS LOSS
@ RATED
CURRENT
(W)
35 LA30QS35-4 40.9 6.4
40 LA30QS40-4 41.2 7
50 LA30QS50-4 4 2 9.9
60 LA30QS60-4 42.7 11.6
70 LA30QS70-4 41.6 11
80 LA30QS80-4 42.6 11
90 LA30QS90-4 43.2 13
100 LA30QS100-4 44.1 13
100 LA30QS100-4TI 4TI 4.1 13
125 LA30QS125-4 46.3 16
130 LA30QS130-4 46.3 16
150 LA30QS150-4 49.3 19
150 LA30QS150-4TI 4TI 9.3 19
175 LA30QS175-4 410 27
200 LA30QS200-4 415 30
200 LA30QS200-4TI 4TI 15 30
225 LA30QS225-4 422 33
250 LA30QS250-4 425 41
250 LA30QS250-4TI 4TI 25 41
300 LA30QS300-4 437 47
300 LA30QS300-4TI 4TI 37 47
350 LA30QS350-4 462 49
400 LA30QS400-4 483 56
400 LA30QS400-4IL 4IL 83 56
400 LA30QS400-4TI 4TI 83 56
450 LA30QS450-4 4130 53
AMPERE
RATING
CATALOG
NUMBER
MOUNTING
TYPE
MAXIMUM
CLEARING I2t
@300 VAC
(A2s X 103)
WATTS LOSS
@ RATED
CURRENT
(W)
500 LA30QS500-4 4160 59
550 LA30QS550-4 4190 65
600 LA30QS600-4 4230 69
600 LA30QS600-4TI 4TI 230 69
600 LA30QS600-4IL 4IL 230 69
700 LA30QS700-4 4260 90
700 LA30QS700-128 128 260 73
800 LA30QS800-4 4330 108
800 LA30QS800-4IL 4IL 330 108
800 LA30QS800-128 128 330 84
1000 LA30QS1000-128 128 460 105
1000 LA30QS1000-128IL 128IL 460 105
1200 LA30QS1200-128 128 880 110
1500 LA30QS1500-128 128 1400 140
1500 LA30QS1500-128IL 128IL 1400 140
1600 LA30QS1600-128 128 1690 150
2000 LA30QS2000-128 128 2600 190
2000 LA30QS2000-128IL 128IL 2600 190
2500 LA30QS2500-128 128 4000 230
2500 LA30QS2500-128IL 128IL 4000 230
3000 LA30QS3000-128 128 4700 340
3500 LA30QS3500-128 128 6500 380
3500 LA30QS3500-128IL 128IL 6500 380
4000 LA30QS4000-128 128 8600 450
4500 LA30QS4500-128 128 11000 500
Figure 1 Figure 2
Figure 3 Figure 4
Dimensions for reference only.
AMPERE
RATING
MOUNTING
TYPE
FIGURE
NO.
DIMENSIONS INCHES (mm)TAP
A B C D E F G H
35 – 60 4 1 3.19 (81.0) 0.81 (20.6) 1.63 (41.4) 2.50 (63.5) 2.25 (57.5) 0.34 (8.6) 0.72 (18.3) 0.13 (3.3) –
70 – 200 4 2 3.13 (79.5) 1.22 (31.0) 1.63 (41.4) 2.44 (62.0) 2.31 (58.7) 0.31 (7.9) 1.00 (25.4) 0.19 (4.8) –
225 – 800 4, 4IL* 23.84 (97.5) 1.50 (38.1) 1.59 (4 0.1) 2.91 (73.9) 2.28 (57.9) 0.41 (10.4) 1.00 (25.4) 0.25 (6.4) –
800 – 1200 128 32.59 (65.8) 3.00 (76.2) 2.34 (59.4) 2.50 (63.5) 1.50 (38.1) –––3⁄8-24-1⁄2 deep
1500 – 2500 128, 128IL* 42.59 (65.8) 3.50 (88.9) 2.34 (59.4) 3.00 (76.2) 1.50 (38.1) 1.50 (38.1) – – 3⁄8-24-1⁄2 deep
3000 – 4500 128, 128IL* 42.59 (65.8) 4.50 (114) 2.34 (59.4) 3.75 (95.3) 1.5 0 (38.1) 1.50 (38.1) – – 1⁄2-20-1⁄2 deep
*Optional Trigger Actuator (IL). Optional Trigger Indicator (TI) see web for dimensions.
Dimensions
LA30QS Series
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POWR-GARD® Fuse Datasheet
5 of 8
Note: High-Speed fuses are designed for fixed installations. They are not intended for use in moving vehicle applications.
LA50QS ALTERNATE DIMENSION HIGH-SPEED FUSES
500 VAC • Very Fast-Acting • 35-1200 A
Description
Littelfuse LA50QS series fuses were developed to improve
the overall performance of high-speed fuses. The LA50QS
provides the high performance protection characteristics
including lower I2t, longer life when subjected to cyclic
loading and lower watts loss. LA50QS is the leading choice
for the protection of dynamic solid state equipment.
Specifications
Voltage Rating AC: 500 V
DC: 500 V
Interrupting Rating AC: 200 kA
DC: 100 kA
Ampere Range 35 – 1200 A
Approvals UL Recognized
CSA Certified
Web Resources
For additional information, visit: littelfuse.com/la50qs
AMPERE
RATING
CATALOG
NUMBER
MOUNTING
TYPE
MAXIMUM
CLEARING I2t
@500 VAC
(A2s X 103)
WATTS LOSS
@ RATED
CURRENT (W)
35 LA50QS35-4 40.56 6
40 LA50QS40-4 40.69 7
50 LA50QS50-4 41.1 8
60 LA50QS60-4 41.6 10
70 LA50QS70-4 41.9 12
80 LA50QS80-4 42.6 14
90 LA50QS90-4 43.6 15
100 LA50QS100-4 44.4 17
125 LA50QS125-4 45.6 21
150 LA50QS150-4 4 9 25
175 LA50QS175-4 415 29
200 LA50QS200-4 420 33
225 LA50QS225-4 425 37
250 LA50QS250-4 429 41
300 LA50QS300-4 455 49
350 LA50QS350-4 488 57
400 LA50QS400-4 498 65
450 LA50QS450-4 4130 69
500 LA50QS500-4 4160 77
600 LA50QS600-4 4220 92
700 LA50QS700-4 4270 110
800 LA50QS800-4 4360 130
900 LA50QS900-4 4500 140
1000 LA50QS1000-4 4560 160
1200 LA50QS1200-4 4930 175
Dimensions for reference only.
AMPERE
RATING
MOUNTING
TYPE
DIMENSIONS INCHES (mm)
A B C D E F G H
35 – 100 43.63
(92.2)
1.00
(25.4)
2.13
(5 4.1)
2.94
(74.7)
2.75
(69.9)
0.31
(7.9)
0.75
(19.1)
0.13
(3.3)
125 – 200 43.63
(92.2)
1.22
(31.0)
2.13
(5 4.1)
2.94
(74.7)
2.81
(71.4)
0.31
(7.9)
1.00
(25.4)
0.19
(4.8)
225 – 400 44.34
(110)
1.50
(38.1)
2.09
(53.1)
3.41
(86.6)
2.78
(70.6)
0.41
(10.4)
1.00
(25.4)
0.25
(6.4)
450 – 600 44.47
(114)
2.00
(50.8)
2.22
(56.4)
3.53
(89.7)
2.91
(73.9)
0.41
(10.4)
1.50
(38.1)
0.25
(6.4)
700 – 800 46.47
(164.3)
2.50
(63.5)
2.22
(56.4)
5.00
(12 7.0)
3.44
(87.3)
0.53
(13.5)
1.50
(38.1)
0.25
(6.4)
900 – 1200 46.97
(17 7.0)
3.00
(76.2)
3.22
(81.8)
5.47
(138.9)
4.47
(113.5)
0.63
(15.9)
2.38
(60.3)
0.44
(11.1)
Contact Littelfuse for characteristic curves.
Dimensions
LA50QS Series
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Rev: 052215
POWR-GARD® Fuse Datasheet
6 of 8
Note: High-Speed fuses are designed for fixed installations. They are not intended for use in moving vehicle applications.
ALTERNATE DIMENSION HIGH-SPEED FUSES
600 Vac/dc • Very Fast-Acting • 5-40 A
690 Vac/700 Vdc • Very Fast-Acting • 10-100 A
Specifications
Voltage Rating AC: 600 V
DC: 600 V
Interrupting Rating AC: 200 kA
DC: 100 kA
Ampere Range 5 – 40 A
Approvals UL Recognized
AMPERE
RATING
CATALOG
NUMBER
MOUNTING
TYPE
MAXIMUM
CLEARING I2t
@600 VAC (A2s)
WATTS LOSS
@ RATED
CURRENT (W)
5LA60Q5-2 260 0.7
8LA60Q8-2 270 1.1
10 LA60Q10-2 2110 1.6
12 LA60Q12-2 2150 2
15 LA60Q15-2 2180 3
20 LA60Q20-2 2330 4.4
25 LA60Q25-2 2440 5.5
30 LA60Q30-2 2860 5.6
35 LA60Q35-2 21300 6.4
40 LA60Q40-2 21800 7
1 ½
13/32
Description
Littelfuse LA60Q high-speed protection fuses feature
a 600 volt ac/dc rating in a compact size (1 1⁄2” x 13 ⁄32”).
LA60Q also has the lowest I2t of all similar fuses and
excellent cycling ability. Applications include inverters and
small equipment requiring extremely fast response to
faults, without the need to carry sustained heavy overloads.
Dimensions Inches
Contact Littelfuse for characteristic curves.
Description
Littelfuse French Cylindrical style high-speed fuses are an
extension to the LA70QS series. They offer a solid-fill design
with high interrupting ratings and an optional striker for
visual or remote blown fuse indication.
Web Resources
For additional information, visit: littelfuse.com/semi
Dimensions
Specifications
Voltage Rating AC: 690 V
DC: 700 V
Interrupting Rating AC: 200 kA
DC: 100 kA
Ampere Range 10 – 100 A
Approvals UL Recognized
CSA Certified
Web Resources
For additional information, visit: littelfuse.com/la60q
AMPERE
RATING
CATALOG
NUMBER
(NO STRIKER)
CATALOG
NUMBER
(WITH STRIKER)
BODY
SIZE
MAXIMUM
CLEARING I2t
@700 VAC
(A2s X 103)
WATTS LOSS
@ RATED
CURRENT (W)
10 LA70QS10-14F LA70QS10-14FI 14 x 51 0.04 3.5
12 LA70QS12-14F LA70QS12-14FI 14 x 51 0.06 4.4
16 LA70QS16-14F LA70QS16-14FI 14 x 51 0.10 4.8
20 LA70QS20-14F LA70QS20-14FI 14 x 51 0.16 5.2
25 LA70QS25-14F LA70QS25-14FI 14 x 51 0.27 5.8
32 LA70QS32-14F LA70QS32-14FI 14 x 51 1.50 7.0
40 LA70QS40-14F LA70QS40-14FI 14 x 51 0.70 10.7
50 LA70QS50-14F LA70QS50-14FI 14 x 51 1.50 11.6
20 LA70QS20-22F LA70QS20-22FI 22 x 58 0.076 8.0
25 LA70QS25-22F LA70QS25-22FI 22 x 58 0.125 10.0
32 LA70QS32-22F LA70QS32-22FI 22 x 58 0.27 11.0
40 LA70QS40-22F LA70QS40-22FI 22 x 58 0.48 13.0
50 LA70QS50-22F LA70QS50-22FI 22 x 58 0.80 14.9
63 LA70QS63-22F LA70QS63-22FI 22 x 58 1.85 16.0
80 LA70QS80-22F LA70QS80-22FI 22 x 58 3.80 17.8
100 LA70QS100-22F LA70QS100-22FI 22 x 58 8.00 19.0
FUSE SIZE DIMENSIONS mm
A B C D E
14x51 14 51 14 – –
22x58 22 58 16 – –
14x51 Striker 14 51 14 7.5 3.8
22x58 Striker 22 58 16 7.5 3.8
LA60Q Series High-Speed Fuses
LA70QSF Series French Cylindrical Fuses
A
B
C
A
B
C
D
E
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Rev: 052215
POWR-GARD® Fuse Datasheet
7 of 8
Note: High-Speed fuses are designed for fixed installations. They are not intended for use in moving vehicle applications.
LA70QS ALTERNATE DIMENSION HIGH-SPEED FUSES
700 VAC/VDC • Very Fast-Acting • 35-800 A
AMPERE
RATING
CATALOG
NUMBER
MOUNTING
TYPE
MAXIMUM
CLEARING I2t
@700 VAC
(A2s X 103)
WATTS LOSS
@ RATED
CURRENT (W)
35 LA70QS35-4 40.47 6.2
40 LA70QS40-4 40.58 7.5
50 LA70QS50-4 40.86 9.8
60 LA70QS60-4 41.2 12
70 LA70QS70-4 41.8 15
80 LA70QS80-4 42.3 18
90 LA70QS90-4 4 3 20
100 LA70QS100-4 43.6 24
125 LA70QS125-4 46.9 22
125 LA70QS125-4K 4K 6.9 22
150 LA70QS150-4 411 29
150 LA70QS150-4K 4K 11 29
175 LA70QS175-4 414 35
175 LA70QS175-4K 4K 14 35
200 LA70QS200-4 419 41
200 LA70QS200-4K 419 41
250 LA70QS250-4 442 42
300 LA70QS300-4 455 53
350 LA70QS350-4 472 64
400 LA70QS400-4 499 75
450 LA70QS450-4 4125 78
450 LA70QS450-4K 4K 125 78
500 LA70QS500-4 4160 92
500 LA70QS500-4K 4K 160 92
600 LA70QS600-4 4222 116
600 LA70QS600-4K 4K 222 116
700 LA70QS700-4 4332 125
800 LA70QS800-4 4433 143
Dimensions for reference only.
AMPERES MOUNTING
TYPE
DIMENSIONS INCHES (mm)
A B C D E F G H
35 – 100 44.38 (111) 1.00 (25.4) 2.88 (73) 3.69 (93.6) 3.50 (88.9) 0.31 (7.9) 0.75 (19.0) 0.13 (3.2)
125 – 200 44.38 (111) 1.22 (31.0) 2.88 (73) 3.69 (93.6) 3.56 (90.5) 0.31 (7.9) 1.00 (25.4) 0.19 (4.8)
125 – 200 4K 5.09 (129) 1.22 (31.0) 2.88 (73) 4.19 (10 6) 3.50 (88) 0.41 (10.3) 1.00 (25.4) 0.19 (4.8)
225 – 400 45.09 (129) 1.50 (38.1) 2.84 (72.2) 4.16 (106) 3.53 (89.7) 0.40 (10.3) 1.50 (38.1) 0.25 (6.4)
450 – 600 45.09 (129) 2.00 (50.8) 2.84 (72.2) 4.16 (106) 3.53 (89.7) 0.41 (10.3) 1.50 (38.1) 0.25 (6.4)
450 – 600 4K 7.09 (180) 2.00 (50.8) 2.84 (72.2) 6.16 (156) 3.53 (89.7) 0.53 (13.5) 1.50 (38.1) 0.25 (6.4)
700 – 800 47.0 9 (180) 2.50 (63.5) 2.84 (72.2) 5.28 (134) 4.91 (125) 0.53 (13.5) 2.00 (50.8) 0.38 (9.5)
Contact Littelfuse for characteristic curves.
Description
Littelfuse LA70QS high-speed fuses were developed to
provide improved performance required by today’s new
equipment. The LA70QS features lower I2t, improved cycling,
and lower watts loss. It is the best choice for the protection
of dynamic solid-state equipment.
Features/Benefits
• I2t improved protection of equipment.
• Superior cycling ability for long, reliable life on high
cycling loading.
• Lower watts loss for cooler operation.
• 700 Volt ac/dc rating provides greater design versatility
• Compact sizes allow downsizing of equipment
Specifications
Voltage Rating AC: 700 V
DC: 700 V
Interrupting Rating AC: 200 kA
DC: 100 kA
Ampere Range 35 – 800 A
Approvals UL Recognized
CSA Certified
Web Resources
For additional information, visit: littelfuse.com/la70qs
Dimensions
LA70QS Series High-Speed Fuses
littelfuse.com © 2015 Littelfuse POWR-GARD® Products
Rev: 052215
POWR-GARD® Fuse Datasheet
8 of 8
Note: High-Speed fuses are designed for fixed installations. They are not intended for use in moving vehicle applications.
LA100P ALTERNATE DIMENSION HIGH-SPEED FUSES
1000 VAC • Very Fast-Acting • 15-1000 A
Description
Littelfuse LA100P high-speed protection fuses are rated
1000 Vac, extending the range of protection for UPS
systems, AC and DC drives, reduced voltage motor starters
and similar applications where lower I2t and superior
reliability are needed. With ratings from 15-1000 amperes, a
wide range of high voltage applications can be served.
Features/Benefits
• Low I2t minimizes damage to protected components
on short-circuit.
• Controlled arc voltage reduces stress to circuit
components during fuse clearing.
Specifications
Voltage Rating AC: 1000 V
DC: 750 V
Interrupting Rating 100 kA
Ampere Range 15 – 1000 A
Approvals UL Recognized
Web Resources
For additional information, visit: littelfuse.com/la100p
AMPERE
RATING
CATALOG
NUMBER
MOUNTING
TYPE
MAXIMUM
CLEARING I2t
@1000 Vac
(A2s X 103)
WATTS LOSS
@ RATED
CURRENT (W)
15 LA100P15-1 10.6 3.4
20 LA100P20-1 10.8 5.9
25 LA100P25-1 11,3 9
30 LA100P30-1 11.5 12.8
35 LA100P35-4 42.2 7.3
40 LA100P40-4 42.9 8.3
50 LA100P50-4 44.5 11
60 LA100P60-4 46.5 13
80 LA100P80-4 412 14
100 LA100P100-4 418 18
125 LA100P125-4 428 23
150 LA100P150-4 441 28
200 LA100P200-4 472 36
225 LA100P225-4 491 40
250 LA100P250-4 4110 46
300 LA100P300-4 4160 55
350 LA100P350-4 4220 65
400 LA100P400-4 4290 70
500 LA100P500-4 4450 90
600 LA100P600-4 4650 110
650 LA100P650-4 4780 120
700 LA100P700-4 4880 125
800 LA100P800-4 41200 140
1000 LA100P1000-4 41900 190
Dimensions for reference only.
AMPERES MOUNTING
TYPE
FIGURE
NO.
DIMENSIONS INCHES (mm)
A B C D E F G H J
15 – 30 1 1 2.53 (66.8) 0.56 (14.2) –––––––
35 – 60 4 2 5.00 (127) 1.00 (25.4) 3.50 (88.9) 4.31 (109) 4.19 (106) 0.31 (7.9) 0.75 (19.1) 0.13 (3.3) –
65 – 100 4 2 5.00 (127) 1.22 (31) 3.50 (88.9) 4.31 (109) 4.19 (106) 0.31 (7.9) 1.00 (25.4) 0.19 (4.8) –
125 – 200 4 2 5.72 (145) 1.5 0 (38.1) 3.47 (88.1) 4.78 (121) 4.16 (106) 0.41 (10.4) 1.00 (25.4) 0.25 (6.4) –
225 – 400 4 2 5.72 (145) 2.00 (50.8) 3.47 (88.1) 4.78 (121) 4.16 (106) 0.41 (10.4) 1.50 (25.4) 0.25 (6.4) –
500 – 600 4 2 7.72 (196) 2.50 (63.5) 3.47 (88.1) 5.88 (149) 5.56 (147) 0.53 (13.5) 2.00 (50.8) 0.38 (9.7) –
650 – 800 4 3 7.4 4 (189) 2.88 (73.2) 3.94 (100) 5.94 (151) –0.63 (16) 2.00 (50.8) 0.38 (9.7) 0.31 (7.9)
1000 4 4 8.22 (209) 3.50 (88.9) 4.47 (114) 6.59 (167) 5.84 (148) 0.63 (16) 2.75 (69.9) 0.50 (12.7) 1.38 (35.1)
Optional Trigger Indicator (TI) for 50 A - 1000 A available
Contact Littelfuse for characteristic curves.
Figure 1 Figure 3Figure 2 Figure 4
Dimensions
LA100P Series High-Speed Fuses
