POWR-GARD
®
Fuse Datasheet
TRADITIONAL SEMICONDUCTOR FUSES
150/250/500/600/700 VAC • Very Fast-Acting • 1-1200 A
Ordering Information
AMPERE
RATINGS
1
2
3
4
5
6
7
8
9
10
12
15
17
1
⁄
2
20
25
30
35
40
45
50
60
70
80
90
100
110
125
150
175
200
225
250
275
300
350
400
450
500
550
600
700
800
900
1000
1200
‡
SERIES ORDERING NUMBER
L15S
L15S001
L15S002
L15S003
L15S004
L15S005
L15S006
L15S007
L15S008
L15S009
L15S010
L15S012
L15S015
–
L15S020
L15S025
L15S030
L15S035
L15S040
L15S045
L15S050
L15S060
L15S070
L15S080
L15S090
L15S100
–
L15S125
L15S150
–
L15S200
–
L15S250
–
L15S300
L15S350
L15S400
L15S450
L15S500
–
L15S600
–
L15S800
–
L15S1000
–
L25S
L25S001
L25S002
L25S003
L25S004
L25S005
L25S006
–
L25S008
–
L25S010
L25S012
L25S015
–
L25S020
L25S025
L25S030
L25S035
L25S040
L25S045
L25S050
L25S060
L25S070
L25S080
L25S090
L25S100
–
L25S125
L25S150
L25S175
L25S200
L25S225
L25S250
L25S275
L25S300
L25S350
L25S400
L25S450
L25S500
–
L25S600
L25S700
L25S800
–
–
–
L50S
–
–
–
–
–
–
–
–
–
L50S010
L50S012
L50S015
–
L50S020
L50S025
L50S030
L50S035
L50S040
–
L50S050
L50S060
L50S070
L50S080
L50S090
L50S100
–
L50S125
L50S150
L50S175
L50S200
L50S225
L50S250
L50S275
L50S300
L50S350
L50S400
L50S450
L50S500
L50S550
L50S600
L50S700
L50S800
LA50P9004
LA50P10004
LA50P12004
L60S
L60S001
L60S002
L60S003
L60S004
L60S005
L60S006
–
L60S008
–
L60S010
L60S012
L60S015
L60S17.5
L60S020
L60S025
L60S030
L60S035
L60S040
L60S045
L60S050
L60S060
L60S070
L60S080
L60S090
L60S100
–
L60S125
L60S150
L60S175
L60S200
L60S225
L60S250
–
L60S300
L60S350
L60S400
L60S450
L60S500
–
L60S600
L60S700
L60S800
–
–
–
KLC
‡
KLC001
KLC002
KLC003
KLC004
KLC005
KLC006
KLC007
KLC008
–
KLC010
KLC012
KLC015
KLC17.5
KLC020
KLC025
KLC030
KLC035
KLC040
KLC045
KLC050
KLC060
KLC070
KLC080
KLC090
KLC100
KLC110
KLC125
KLC150
KLC175
KLC200
KLC225
KLC250
–
KLC300
KLC350
KLC400
KLC450
KLC500
–
KLC600
KLC700
KLC800
–
–
–
L70S
–
–
–
–
–
–
–
–
–
L70S010
–
L70S015
–
L70S020
L70S025
L70S030
L70S035
L70S040
–
L70S050
L70S060
L70S070
L70S080
L70S090
L70S100
–
L70S125
L70S150
L70S175
L70S200
L70S225
L70S250
–
L70S300
L70S350
L70S400
L70S450
L70S500
–
L70S600
L70S700
L70S800
LA70P9004
LA70P10004
LA70P12004
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
Approvals
1 – 1200 A See Rating Table for
ratings available in each series.
UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
Recommended Fuse Holders
1LFS101/1LFS102
LSCR001/LSCR002
Web Resources
For additional information, visit:
littelfuse.com/semi
KLC series fuses are recommended for replacement use only.
littelfuse.com
1 of 8
© 2014 Littelfuse POWR-GARD
®
Products
Rev: 4-E-012714
POWR-GARD
®
Fuse Datasheet
TRADITIONAL SEMICONDUCTOR FUSES
Dimensions
AMPERE
RATING
FIG.
NO.
A
B
C
DIMENSIONS INCHES (mm)
D
E
F
G
H
L15S Series, 150 VAC
1 – 30
31 – 60
61 – 450
451 – 1000
1
1
3
3
3 8
13 32
1
1
⁄
2
(38.1)
—
⁄ (9.5)
⁄ (10.3)
5 8
13 16
2 (50.8)
—
⁄ (15.9)
⁄ (20.6)
5 32
78
3 16
21 32
1 ⁄ (29.4) 1 ⁄ (47.6) 2 ⁄ (55.6) 2 ⁄ (67.5)
1
1
⁄
4
(31.8) 1
15
⁄
16
(49.2) 2
9
⁄
16
(65.1) 3
1
⁄
2
(88.9)
—
—
1 (25.4)
1
1
⁄
2
(38.1)
—
—
43 64
⁄ (17.1)
1 (25.4)
—
—
5 16
⁄ (7.9)
13 32
⁄ (10.3)
—
—
3 16
⁄ (4.8)
14
⁄ (6.4)
D
C
A
L25S Series, 250 VAC
1 – 30
31 – 60
61 – 200
201 – 700
701 – 800
1
2
3
3
3
12
9 16
2 (50.8)
—
⁄ (12.7)
⁄ (14.3)
—
5 8
14
12
3 16
13 16
1 ⁄ (41.3) 2 ⁄ (57.2) 2 ⁄ (63.5) 3 ⁄ (81.0)
⁄ (20.6)
1
5
⁄
8
(41.3) 2
5
⁄
16
(58.7) 2
7
⁄
16
(61.9) 3
1
⁄
8
(79.4) 1
7
⁄
32
(31.0)
1
19
⁄
32
(40.5) 2
9
⁄
32
(57.9) 2
29
⁄
32
(73.8) 3
27
⁄
32
(97.6) 1
1
⁄
2
(38.1)
1
19
⁄
32
(40.5) 2
9
⁄
32
(57.9) 2
29
⁄
32
(73.8) 3
27
⁄
32
(97.6) 2 (50.8)
—
23 32
⁄ (18.3)
1 (25.4)
1 (25.4)
1
1
⁄
2
(38.1)
—
11 32
⁄ (8.7)
5 16
⁄ (7.9)
13 32
⁄ (10.3)
13 32
⁄ (10.3)
—
18
⁄ (3.2)
3 16
⁄ (4.8)
14
⁄ (6.4)
14
⁄ (6.4)
F
G
Fig. 1
L50S Series, 500 VAC / 450 VDC
10 – 30
31 – 60
61 – 100
101 – 200
201 – 400
401 – 600
601 – 800
1
2
3
3
3
3
3
2 (50.8)
1
5
⁄
8
(41.3)
2
1
⁄
8
(54.0)
2
1
⁄
8
(54.0)
2
3
⁄
32
(53.2)
2
7
⁄
32
(56.4)
2
7
⁄
32
(56.4)
—
2
1
⁄
4
(57.2)
2
11
⁄
16
(68.3)
2
13
⁄
16
(71.4)
2
25
⁄
32
(70.6)
2
29
⁄
32
(73.8)
4
9
⁄
32
(108.7)
⁄ (12.7)
2
1
⁄
2
(63.5)
3 (76.2)
2
15
⁄
16
(74.6)
3
13
⁄
32
(86.5)
3
17
⁄
32
(89.7)
4
5
⁄
8
(117.5)
12
⁄ (14.3)
—
3 ⁄ (81.0)
13
⁄
16
(20.6)
3
5
⁄
8
(92.1)
1 (25.4)
3
5
⁄
8
(92.1) 1
7
⁄
32
(31.0)
4
11
⁄
32
(110.3) 1
1
⁄
2
(38.1)
4
15
⁄
32
(113.5) 2 (50.8)
6
15
⁄
32
(164.3) 2
1
⁄
2
(63.5)
9 16
3 16
—
23 32
⁄ (18.3)
.670 (17.0)
.895 (22.7)
1 (25.4)
1
1
⁄
2
(38.1)
2 (50.8)
—
11 32
⁄ (8.7)
11 32
⁄ (8.7)
5 16
⁄ (7.9)
13 32
⁄ (10.3)
13 32
⁄ (10.3)
17 32
⁄ (13.5)
—
1 8
⁄ (3.2)
1 8
⁄ (3.2)
3 16
⁄ (4.75)
14
⁄ (6.4)
14
⁄ (6.4)
3 8
⁄ (9.5)
Fig, 2
A
B
C
D
E
H
L60S Series, 600 VAC
1 – 30
31 – 60
61 – 100
101 – 200
201 – 400
401 – 600
601 – 800
1
2
2
2
2
2
2
5 (127.0)
2 ⁄ (70.6)
2
29
⁄
32
(73.8)
2
29
⁄
32
(73.8)
2
29
⁄
32
(73.8)
2
7
⁄
8
(73.0)
3
1
⁄
32
(77.0)
25 32
—
3 ⁄ (87.3)
3
17
⁄
32
(89.7)
3
9
⁄
16
(90.5)
3
31
⁄
32
(100.8)
3
31
⁄
32
(100.8)
5
5
⁄
32
(133.4)
7 16
⁄ (15.9)
3 ⁄ (93.7)
3
25
⁄
32
(96.0)
3
3
⁄
4
(95.3)
4
5
⁄
32
(105.6)
4
9
⁄
64
(105.2)
5
11
⁄
32
(135.7)
5 8
11 16
⁄ (20.6)
4
3
⁄
8
(111.1)
4
15
⁄
32
(113.5)
4
13
⁄
32
(111.9)
5
1
⁄
8
(130.2)
5
1
⁄
8
(130.2)
7
1
⁄
4
(184.2)
13 16
—
⁄ (20.6)
1
1
⁄
16
(27.0)
1
5
⁄
16
(33.3)
1
37
⁄
64
(40.1)
2
1
⁄
16
(52.8)
2
1
⁄
2
(63.5)
13 16
—
⁄ (18.3)
23 32
⁄ (18.3)
1 (25.4)
1 (25.4)
1
1
⁄
2
(38.1)
2 (50.8)
23 32
—
⁄ (8.7)
11 32
⁄ (8.7)
5 16
⁄ (7.9)
13 32
⁄ (10.3)
13 32
⁄ (10.3)
17 32
⁄ (13.5)
11 32
—
⁄ (3.2)
18
⁄ (3.2)
3 16
⁄ (4.8)
14
⁄ (6.4)
14
⁄ (6.4)
3 8
⁄ (9.5)
18
F
G
A
B
C
D
H
E
L70S Series, 700 VAC / 650 VDC
10 – 30
31 – 60
61 – 100
101 – 200
201 – 400
401 – 600
601 – 800
1
3
3
3
3
3
4
2 (50.8)
2
7
⁄
8
(73.0)
2
7
⁄
8
(73.0)
2
27
⁄
32
(72.2)
2
27
⁄
32
(72.2)
2
27
⁄
32
(72.2)
—
7 16
3 ⁄ (87.3)
3
9
⁄
16
(90.5)
3
17
⁄
32
(89.7)
3
17
⁄
32
(89.7)
4
29
⁄
32
(124.6)
⁄ (12.7)
25 32
3 ⁄ (96.0)
3
11
⁄
16
(93.7)
4
5
⁄
32
(105.6)
4
5
⁄
32
(105.6)
5
1
⁄
4
(133.4)
12
⁄ (14.3)
—
4 ⁄ (111.1)
1 (25.4)
4
3
⁄
8
(111.1) 1
7
⁄
32
(31.0)
5
3
⁄
32
(129.4) 1
1
⁄
2
(38.1)
5
3
⁄
32
(129.4) 2 (50.8)
7
3
⁄
32
(180.2) 2
1
⁄
2
(63.5)
9 16
3 8
—
⁄ (17.1)
29 32
⁄ (22.9)
1(25.4)
1
1
⁄
2
(38.1)
2 (50.8)
43 64
—
⁄ (8.7)
5 16
⁄ (7.9)
13 32
⁄ (10.3)
13 32
⁄ (10.3)
17 32
⁄ (13.5)
11 32
5 8
3
5
⁄
16
(84.1) 5
5
⁄
16
(134.9) 6
13
⁄
16
(173.0)
—
2
7
⁄
8
(73.0)
2 (50.8)
⁄ (15.9)
—
⁄ (3.2)
3 16
⁄ (4.8)
14
⁄ (6.4)
14
⁄ (6.4)
3 8
⁄ (9.5)
H:
3
⁄
8
(9.5)
J:
5
⁄
16
(7.9)
18
Fig. 3
KLC Series, 600 VAC
1 – 30
31 – 60
61 – 100
101 – 200
201 – 400
401 – 800
2
2
3
3
3
3
1
7
⁄
8
(47.6)
2
3
⁄
4
(69.9)
2
7
⁄
8
(73.0)
2
27
⁄
32
(72.2)
2
27
⁄
32
(72.2)
2
27
⁄
32
(72.2)
2
1
⁄
2
(63.5)
3
3
⁄
8
(85.7)
3
21
⁄
32
(92.9)
3
17
⁄
32
(89.7)
4
21
⁄
32
(118.3)
4
21
⁄
32
(118.3)
—
5 8
3 ⁄ (92.1)
4
1
⁄
16
(103.2)
4
3
⁄
8
(111.1)
4
27
⁄
32
(123.0)
5
11
⁄
32
(135.7)
2
7
⁄
8
(73.0)
9
⁄
16
(14.3)
4
5
⁄
16
(109.5)
13
⁄
16
(20.6)
5 (127.0)
1 (25.4)
3 32
5 ⁄ (129.4) 1
1
⁄
2
(38.1)
6
1
⁄
4
(158.8)
2 (50.8)
6
1
⁄
4
(158.8) 2
1
⁄
2
(63.5)
⁄ (10.3)
23 32
⁄ (18.3)
3 4
⁄ (19.1)
1 (25.4)
1
5
⁄
8
(41.3)
2 (50.8)
13 32
F
⁄ (6.4)
11 32
⁄ (8.7)
13 32
⁄ (10.3)
13 32
⁄ (10.3)
9 16
⁄ (14.3)
9 16
⁄ (14.3)
14
3 64
1 8
⁄ (1.2)
⁄ (3.2)
1 8
⁄ (3.2)
14
⁄ (6.4)
14
⁄ (6.4)
3 8
⁄ (9.5)
G
A
B
C
J
E
H
Fig. 4
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© 2014 Littelfuse POWR-GARD
®
Products
Rev: 4-E-012714
POWR-GARD
®
Fuse Datasheet
LA15QS ALTERNATE DIMENSION SEMICONDUCTOR FUSES
150 VAC • Very Fast-Acting • 1-6000 A
LA15QS Series
AMPERE
RATING
1
3
4
5
6
7
8
10
12
15
20
25
30
35
40
40
45
50
50
55
60
70
70
80
80
90
100
100
130
130
150
150
150
200
200
CATALOG
NUMBER
LA15QS1-2
LA15QS3-2
LA15QS4-2
LA15QS5-2
LA15QS6-2
LA15QS7-2
LA15QS8-2
LA15QS10-2
LA15QS12-2
LA15QS15-2
LA15QS20-2
LA15QS25-2
LA15QS30-2
LA15QS35-1
LA15QS40-1
LA15QS40-4TI
LA15QS45-1
LA15QS50-1
LA15QS50-4
LA15QS55-1
LA15QS60-1
LA15QS70-4
LA15QS70-4TI
LA15QS80-4
LA15QS80-4TI
LA15QS90-4
LA15QS100-4
LA15QS100-4TI
LA15QS130-4
LA15QS130-4TI
LA15QS150-4
LA15QS150-4IL
LA15QS150-4TI
LA15QS200-4
LA15QS200-4IL
MAXIMUM
WATTS LOSS
MOUNTING
CLEARING I
2
t @150
@ RATED
TYPE
VAC (A
2
s x 10
3
)
CURRENT (W)
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
4TI
1
1
4
1
1
4
4TI
4
4TI
4
4
4TI
4
4TI
4
4IL
4TI
4
4IL
0.0002
0.003
0.007
0.012
0.022
0.011
0.015
0.019
0.030
0.042
0.072
0.14
0.25
0.21
0.28
0.39
0.34
0.47
0.64
Contact Factory
0.94
2
2
2.5
2.5
3.1
3.6
3.6
5.3
5.3
6.8
6.8
6.8
9
9
0.68
1.7
2.1
2.8
3.1
2.2
2.5
2.6
3
3
4
5.2
5.6
9
10
3.1
12
13
4
Contact Factory
14
5.6
5.6
8
8
9
10
10
14
14
16
16
16
22
22
AMPERE
RATING
250
250
300
300
300
350
350
400
400
400
450
450
500
500
600
600
800
1000
1000
1000
1000
1000
1200
1200
1500
1500
2000
2000
2500
2500
3000
3000
3500
4000
4000
5000
6000
CATALOG
NUMBER
LA15QS250-4
LA15QS250-4TI
LA15QS300-4
LA15QS300-4IL
LA15QS300-4TL
LA15QS350-4
LA15QS350-4TI
LA15QS400-4
LA15QS400-4IL
LA15QS400-4TI
LA15QS450-4
LA15QS450-4IL
LA15QS500-4
LA15QS500-4IL
LA15QS600-4
LA15QS600-4IL
LA15QS800-4
LA15QS1000-4
LA15QS1000-4IL
LA15QS1000-4TI
LA15QS1000-128
LA15QS1000-128IL
LA15QS1200-128
LA15QS1200-128IL
LA15QS1500-128
LA15QS1500-128IL
LA15QS2000-128
LA15QS2000-128IL
LA15QS2500-128
LA15QS2500-128IL
LA15QS3000-128
LA15QS3000-128IL
LA15QS3500-128
LA15QS4000-128
LA15QS4000-128IL
LA15QS5000-128
LA15QS6000-128
MAXIMUM
WATTS LOSS
MOUNTING
CLEARING I
2
t @150
@ RATED
TYPE
VAC (A
2
s x 10
3
)
CURRENT (W)
4
4TI
4
4IL
4TI
4
4TI
4
4IL
4TI
4
4IL
4
4IL
4
4IL
4
4
4IL
4TI
128
128IL
128
128IL
128
128IL
128
128IL
128
128IL
128
128IL
128
128
128IL
128
128
15
15
22
22
22
32
32
40
40
40
50
50
90
90
130
130
290
520
520
520
540
540
680
680
1200
1200
1900
1900
3200
3200
4800
4800
6500
8500
8500
Contact Factory
Contact Factory
22
27
33
33
33
40
40
45
45
45
50
50
30
30
35
35
57
75
75
75
88
88
100
100
130
130
165
165
195
195
240
240
260
270
270
Contact Factory
Contact Factory
Specifications
Voltage Rating
Interrupting Rating
Ampere Range
Approvals
AC: 150 V
DC: 150 V
100 kA
1 – 6000 A
UL Recognized
Figure 1
Figure 2
Web Resources
For additional information, visit:
littelfuse.com/la15qs
Figure 3
Figure 4
Figure 5
Dimensions
AMPERE
RATINGS
1 – 30
35 – 60
40 – 450
500 – 1000
750 – 2000
2500 – 3000
3500 – 4000
5000 – 6000
Dimensions for reference only.
MOUNTING
TYPE
2
1
4, 4TI*, 4IL*
4, 4TI*, 4IL*
128, 128IL*
128, 128IL*
128, 128IL*
128
FIGURE
NO.
1
1
2
2
3
3
4
5
1.50
2.00
2.66
3.50
1.88
1.88
1.88
2.38
A
(38.1)
(50.8)
(67.6)
(88.9)
(47.9)
(47.9)
(47.9)
(60.5)
0.41
0.81
1.00
1.50
2.00
3.00
3.50
5.75
B
(10.4)
(20.6)
(25.4)
(38.1)
(50.8)
(76.2)
(88.9)
(146)
–
–
1.16 (29.5)
1.25 (31.8)
1.63 (41.4)
1.63 (41.4)
1.63 (41.4)
1.88 (47.7)
C
DIMENSIONS INCHES (mm)
D
E
–
–
2.19 (55.6)
2.56 (65.0)
1.75 (44.5)
2.50 (63.5)
3.00 (76.2)
5.00 (127)
–
–
1.91 (48.5)
1.94 (49.3)
1.00 (25.4)
1.50 (38.1)
1.06 (27.0)
1.50 (38.1)
–
–
0.31 (7.9)
0.41 (10.4)
–
–
1.06 (27.0)
1.50 (38.1)
F
–
–
0.88 (22.4)
1.00 (25.4)
–
–
–
–
G
–
–
0.19 (4.8)
0.25 (6.4)
–
–
–
–
H
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
*Optional Trigger Actuator (IL). Optional Trigger Indicator (TI) see web for dimensions.
littelfuse.com
3 of 8
© 2014 Littelfuse POWR-GARD
®
Products
Rev: 4-E-012714
POWR-GARD
®
Fuse Datasheet
LA30QS ALTERNATE DIMENSION SEMICONDUCTOR FUSES
300 VAC • Very Fast-Acting • 35-4500 A
LA30QS Series
AMPERE
RATING
35
40
50
60
70
80
90
100
100
125
130
150
150
175
200
200
225
250
250
300
300
350
400
400
400
450
CATALOG
NUMBER
LA30QS35-4
LA30QS40-4
LA30QS50-4
LA30QS60-4
LA30QS70-4
LA30QS80-4
LA30QS90-4
LA30QS100-4
LA30QS100-4TI
LA30QS125-4
LA30QS130-4
LA30QS150-4
LA30QS150-4TI
LA30QS175-4
LA30QS200-4
LA30QS200-4TI
LA30QS225-4
LA30QS250-4
LA30QS250-4TI
LA30QS300-4
LA30QS300-4TI
LA30QS350-4
LA30QS400-4
LA30QS400-4IL
LA30QS400-4TI
LA30QS450-4
MAXIMUM WATTS LOSS
MOUNTING CLEARING I
2
t
@ RATED
TYPE
@300 VAC
CURRENT
(A
2
s X 10
3
)
(W)
4
0.9
6.4
4
1.2
7
4
2
9.9
4
2.7
11.6
4
1.6
11
4
2.6
11
4
3.2
13
4
4.1
13
4TI
4.1
13
4
6.3
16
4
6.3
16
4
9.3
19
4TI
9.3
19
4
10
27
4
15
30
4TI
15
30
4
22
33
4
25
41
4TI
25
41
4
37
47
4TI
37
47
4
62
49
4
83
56
4IL
83
56
4TI
83
56
4
130
53
AMPERE
RATING
500
550
600
600
600
700
700
800
800
800
1000
1000
1200
1500
1500
1600
2000
2000
2500
2500
3000
3500
3500
4000
4500
CATALOG
NUMBER
LA30QS500-4
LA30QS550-4
LA30QS600-4
LA30QS600-4TI
LA30QS600-4IL
LA30QS700-4
LA30QS700-128
LA30QS800-4
LA30QS800-4IL
LA30QS800-128
LA30QS1000-128
LA30QS1000-128IL
LA30QS1200-128
LA30QS1500-128
LA30QS1500-128IL
LA30QS1600-128
LA30QS2000-128
LA30QS2000-128IL
LA30QS2500-128
LA30QS2500-128IL
LA30QS3000-128
LA30QS3500-128
LA30QS3500-128IL
LA30QS4000-128
LA30QS4500-128
MAXIMUM WATTS LOSS
MOUNTING CLEARING I
2
t @ RATED
TYPE
@300 VAC
CURRENT
2
3
(A s X 10 )
(W)
4
160
59
4
190
65
4
230
69
4TI
230
69
4IL
230
69
4
260
90
128
260
73
4
330
108
4IL
330
108
128
330
84
128
460
105
128IL
460
105
128
880
110
128
1400
140
128IL
1400
140
128
1690
150
128
2600
190
128IL
2600
190
128
4000
230
128IL
4000
230
128
4700
340
128
6500
380
128IL
6500
380
128
8600
450
128
11000
500
Description
Littelfuse LA30QS series Semiconductor protection fuses
are intended for the protection of Power Semiconductors
such as diodes, phase control SCR’s and other power
semiconductor devices. The LA30QS is recommended
for new applications providing solutions for your critical
protection needs for 300V and less semiconductors.
Figure 1
Figure 2
Specifications
Voltage Rating
Interrupting Rating
Ampere Range
Approvals
AC: 300 V
DC: 300 V
200 kA
35 – 4500 A
UL Recognized
Figure 3
Figure 4
Web Resources
For additional information, visit:
littelfuse.com/la30qs
Dimensions
AMPERE
RATING
35 – 60
70 – 200
225 – 800
800 – 1200
1500 – 2500
3000 – 4500
MOUNTING
TYPE
4
4
4, 4IL*
128
128, 128IL*
128, 128IL*
FIGURE
NO.
1
2
2
3
4
4
DIMENSIONS INCHES (mm)
A
B
C
D
E
F
3.19 (81.0) 0.81 (20.6) 1.63 (41.4) 2.50 (63.5) 2.25 (57.5) 0.34 (8.6)
3.13 (79.5) 1.22 (31.0) 1.63 (41.4) 2.44 (62.0) 2.31 (58.7) 0.31 (7.9)
3.84 (97.5) 1.50 (38.1) 1.59 (40.1) 2.91 (73.9) 2.28 (57.9) 0.41 (10.4)
2.59 (65.8) 3.00 (76.2) 2.34 (59.4) 2.50 (63.5) 1.50 (38.1)
–
2.59 (65.8) 3.50 (88.9) 2.34 (59.4) 3.00 (76.2) 1.50 (38.1) 1.50 (38.1)
2.59 (65.8) 4.50 (114) 2.34 (59.4) 3.75 (95.3) 1.50 (38.1) 1.50 (38.1)
G
0.72 (18.3)
1.00 (25.4)
1.00 (25.4)
–
–
–
Dimensions for reference only
.
H
0.13 (3.3)
0.19 (4.8)
0.25 (6.4)
–
–
–
TAP
–
–
–
3 8
⁄ -24-
1
⁄
2
deep
3 8
⁄ -24-
1
⁄
2
deep
12
⁄ -20-
1
⁄
2
deep
*Optional Trigger Actuator (IL). Optional Trigger Indicator (TI) see web for dimensions.
littelfuse.com
4 of 8
© 2014 Littelfuse POWR-GARD
®
Products
Rev: 4-E-012714
POWR-GARD
®
Fuse Datasheet
LA50QS ALTERNATE DIMENSION SEMICONDUCTOR FUSES
500 VAC • Very Fast-Acting • 35-1200 A
LA50QS Series
AMPERE
RATING
35
40
50
60
70
80
90
100
125
150
175
200
225
250
300
350
400
450
500
600
700
800
900
1000
1200
CATALOG
NUMBER
LA50QS35-4
LA50QS40-4
LA50QS50-4
LA50QS60-4
LA50QS70-4
LA50QS80-4
LA50QS90-4
LA50QS100-4
LA50QS125-4
LA50QS150-4
LA50QS175-4
LA50QS200-4
LA50QS225-4
LA50QS250-4
LA50QS300-4
LA50QS350-4
LA50QS400-4
LA50QS450-4
LA50QS500-4
LA50QS600-4
LA50QS700-4
LA50QS800-4
LA50QS900-4
LA50QS1000-4
LA50QS1200-4
MOUNTING
TYPE
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
MAXIMUM
CLEARING I
2
t
@500 VAC
(A
2
s X 10
3
)
0.56
0.69
1.1
1.8
1.9
2.6
3.6
4.4
5.6
9
15
20
25
29
55
88
98
130
160
220
270
360
500
560
930
WATTS LOSS
@ RATED
CURRENT (W)
6
7
8
10
12
14
15
17
21
25
29
33
37
41
49
57
65
69
77
92
110
130
140
160
175
Description
In response to new equipment requirements, Littelfuse
LA50QS series fuses were developed to improve the overall
performance of semiconductor fuses. The LA50QS provides
the best protection features including lower I2t, longer life
when subjected to cyclic loading and lower watts loss.
LA50QS is today’s choice for the protection of dynamic solid
state equipment.
Specifications
Voltage Rating
Interrupting Rating
Ampere Range
Approvals
AC: 500 V
DC: 500 V
AC: 200 kA
DC: 100 kA
35 – 1200 A
UL Recognized
CSA Certified
Web Resources
For additional information, visit:
littelfuse.com/la50qs
Dimensions
Dimensions for reference only.
AMPERE
RATING
35 – 100
125 – 200
225 – 400
450 – 600
700 – 800
900 – 1200
MOUNTING
TYPE
4
4
4
4
4
4
A
3.63
(92.2)
3.63
(92.2)
4.34
(110)
4.47
(114)
6.47
(164.3)
6.97
(177.0)
B
1.00
(25.4)
1.22
(31.0)
1.50
(38.1)
2.00
(50.8)
2.50
(63.5)
3.00
(76.2)
C
2.13
(54.1)
2.13
(54.1)
2.09
(53.1)
2.22
(56.4)
2.22
(56.4)
3.22
(81.8)
DIMENSIONS INCHES (mm)
D
E
2.94
2.75
(74.7)
(69.9)
2.94
2.81
(74.7)
(71.4)
3.41
2.78
(86.6)
(70.6)
3.53
2.91
(89.7)
(73.9)
5.00
3.44
(127.0)
(87.3)
5.47
4.47
(138.9)
(113.5)
F
0.31
(7.9)
0.31
(7.9)
0.41
(10.4)
0.41
(10.4)
0.53
(13.5)
0.63
(15.9)
G
0.75
(19.1)
1.00
(25.4)
1.00
(25.4)
1.50
(38.1)
1.50
(38.1)
2.38
(60.3)
H
0.13
(3.3)
0.19
(4.8)
0.25
(6.4)
0.25
(6.4)
0.25
(6.4)
0.44
(11.1)
Contact Littelfuse for characteristic curves.
littelfuse.com
5 of 8
© 2014 Littelfuse POWR-GARD
®
Products
Rev: 4-E-012714
Embedded System
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