Part | RoHS | Manufacturer | Circuit Protection Type | Mounting Feature | Rated AC Voltage | Rated DC Voltage | Rated Current | Terminal Shape | Nominal Joule Integral | Minimum Operating Temperature | Terminal Finish | Rated Breaking Capacity | Manufacturer Series | Trip Time/Delay | Additional Features | Pre Arcing Rating (A2/s) | Packing Method | Body Length/Diameter | Body Width | Fuse Class | JESD-609 Code | Rated Voltage | Resistance | Minimum Pre Arcing Time | Fuse Size | Built-in Features | Dimensions | Body Height | Reference Standard | Maximum Operating Temperature | Blow Characteristic |
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Littelfuse |
Electric Fuse |
Inline/Holder |
125 V |
125 V |
20 A |
End Cap |
Tin |
300 A |
481 |
Rated Breaking Capacity at 125 VDC: 200 A |
e3 |
Alarm |
CSA; UL |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
32 V |
32 V |
20 A |
Tab/Blade |
1.75 kJ |
-40 °C (-40 °F) |
1 kA |
Bulk |
0.555 in (14.1 mm) |
0.472 in (12 mm) |
0.555 x 0.472 x 1.063 in (14.1 x 12 x 27 mm) |
1.063 in (27 mm) |
125 °C (257 °F) |
Time Delay |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
80 V |
20 A |
Tab/Blade |
475 J |
Tin |
166 |
Rated Breaking Capacity at 80 VDC: 1000A |
0.748 in (19 mm) |
0.197 in (5 mm) |
e3 |
0.748 x 0.197 x 0.52 in (19 x 5 x 13.2 mm) |
0.52 in (13.2 mm) |
UL |
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|
Littelfuse |
Electric Fuse |
20 A |
-40 °C (-40 °F) |
0.898 in (22.8 mm) |
0.638 in (16.2 mm) |
32 V |
0.898 x 0.638 x 0.846 in (22.8 x 16.2 x 21.5 mm) |
0.846 in (21.5 mm) |
125 °C (257 °F) |
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Littelfuse |
Electric Fuse |
Inline/Holder |
5.5 KV |
20 A |
Tab/Blade |
80 kA |
4.75 in (120.65 mm) |
4.75 x 15.13 in (120.65 x 384.3 mm) |
15.13 in (384.3 mm) |
Medium |
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Littelfuse |
Electric Fuse |
Inline/Holder |
32 V |
20 A |
Tab/Blade |
10 kA |
0.812 in (20.62 mm) |
0.812 x 1.625 in (20.62 x 41.28 mm) |
1.623 in (41.23 mm) |
Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
450 V |
20 A |
Tab/Blade |
268 J |
-40 °C (-40 °F) |
10 kA |
50 ms |
0.406 in (10.3 mm) |
450 V |
1.492 in (37.9 mm) |
CSA; UL |
125 °C (257 °F) |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
32 V |
20 A |
Tab/Blade |
1.7 kJ |
-40 °C (-40 °F) |
1 kA |
40 ms |
0.555 in (14.1 mm) |
0.472 in (12 mm) |
32 V |
1.063 in (27 mm) |
UL |
125 °C (257 °F) |
Time Delay |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
700 V |
650 V |
20 A |
End Cap |
-55 °C (-67 °F) |
200 kA |
Rated Breaking Capacity at 650 VDC: 20000 A |
0.811 in (20.6 mm) |
700 V |
0.811 x 5 in (20.6 x 127 mm) |
5 in (127 mm) |
CE; CSA; UL |
125 °C (257 °F) |
Very Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
600 V |
600 V |
20 A |
End Cap |
462.056 J |
-55 °C (-67 °F) |
100 kA |
826 µs |
Rated Breaking Capacity at 600 VDC: 50000 A |
Bulk |
0.406 in (10.31 mm) |
6.144 ms |
0.394 x 1.496 in (10 x 38 mm) |
0.406 x 1.5 in (10.31 x 38.1 mm) |
1.5 in (38.1 mm) |
CSA, IEC, UL, VDE |
125 °C (257 °F) |
Fast |
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|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
20 A |
Pin Wire |
575 J |
-55 °C (-67 °F) |
Tin |
4 h |
575 |
0.275 in (6.985 mm) |
e3 |
250 V |
3AB |
0.275 x 1.288 in (6.985 x 32.72 mm) |
1.288 in (32.72 mm) |
CE, CSA, PSE, UL |
125 °C (257 °F) |
Time Lag |
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Littelfuse |
Electric Fuse |
Inline/Holder |
32 V |
20 A |
Tab/Blade |
480 J |
-40 °C (-40 °F) |
1 kA |
Bulk |
0.469 in (11.9 mm) |
0.15 in (3.8 mm) |
20 ms |
0.335 in (8.5 mm) |
85 °C (185 °F) |
Very Fast |
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Littelfuse |
Electric Fuse |
Inline/Holder |
8.25 KV |
20 A |
Tab/Blade |
80 kA |
4.75 in (120.65 mm) |
4.75 x 16.131 in (120.65 x 409.72 mm) |
16.131 in (409.72 mm) |
Medium |
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|
Littelfuse |
Electric Fuse |
20 A |
-40 °C (-40 °F) |
0.898 in (22.8 mm) |
0.638 in (16.2 mm) |
32 V |
0.898 x 0.638 x 0.846 in (22.8 x 16.2 x 21.5 mm) |
0.846 in (21.5 mm) |
125 °C (257 °F) |
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|
Littelfuse |
Electric Fuse |
Through Hole Mount |
420 V |
420 V |
20 A |
Pin Wire |
390 J |
-60 °C (-76 °F) |
Matte Tin |
200 A |
30 ms |
Rated Breaking Capacity at 420 VDC: 300 A |
Bulk |
0.217 in (5.5 mm) |
e3 |
0.197 x 0.787 in (5 x 20 mm) |
0.846 in (21.5 mm) |
CUL; TUV; UL |
125 °C (257 °F) |
Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
20 A |
End Cap |
631 J |
Nickel |
1 kA |
30 s |
Pre Arcing Time: Open within 30 s at 200% Rated Current |
0.25 in (6.35 mm) |
250 V |
3AB |
0.25 x 1.25 in (6.35 x 31.75 mm) |
1.25 in (31.75 mm) |
CE; CSA; METI; PSE; UL |
Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
280 V |
125 V |
20 A |
End Cap |
631 J |
-55 °C (-67 °F) |
Nickel |
350 A |
4 h |
Rated Breaking Capacity at 125 VDC: 10000 A |
631 |
Bulk |
0.25 in (6.35 mm) |
Supplemental |
280 V |
3AB |
0.25 x 1.25 in (6.35 x 31.75 mm) |
1.25 in (31.75 mm) |
CE; UL |
125 °C (257 °F) |
Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
600 V |
600 V |
20 A |
End Cap |
100 kA |
Rated Breaking Capacity at 600 VDC: 10000 A |
0.406 in (10.31 mm) |
0.406 x 1.5 in (10.31 x 38.1 mm) |
1.5 in (38.1 mm) |
CSA; UL |
Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
500 V |
300 V |
20 A |
End Cap |
-55 °C (-67 °F) |
10 kA |
Rated Breaking Capacity at 300 VDC: 10000 A |
Bulk |
0.406 in (10.31 mm) |
0.394 x 1.496 in (10 x 38 mm) |
1.5 in (38.1 mm) |
CSA; UL |
125 °C (257 °F) |
Time Delay |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
125 V |
125 V |
20 A |
End Cap |
570 J |
-55 °C (-67 °F) |
Tin |
300 A |
481 |
Rated Breaking Capacity at 125 VDC: 200 A |
Bulk |
e3 |
Alarm |
CSA; UL |
90 °C (194 °F) |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
170 V |
20 A |
Tab/Blade |
100 kA |
Bulk |
0.563 in (14.3 mm) |
170 V |
0.563 x 0.877 in (14.3 x 22.27 mm) |
0.877 in (22.28 mm) |
CUL; IEC; TUV; UL |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
600 V |
600 V |
20 A |
End Cap |
2.12 kJ |
-55 °C (-67 °F) |
100 kA |
4 m |
0.406 in (10.31 mm) |
600 V |
0.394 x 1.496 in (10 x 38 mm) |
1.5 x 0.406 x 1.5 in (38.1 x 10.31 x 38.1 mm) |
1.5 in (38.1 mm) |
CE; CSA; IEC; UL |
125 °C (257 °F) |
Fast |
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Littelfuse |
Electric Fuse |
Inline/Holder |
280 V |
20 A |
End Cap |
50 A |
314P |
0.25 in (6.35 mm) |
0.25 x 1.25 in (6.35 x 31.75 mm) |
1.25 in (31.75 mm) |
CE; CSA; METI; PSE; UL |
Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
600 V |
300 V |
20 A |
Tab/Blade |
900 J |
Nickel |
200 kA |
Rated Breaking Capacity at 300 VDC: 20000 A |
Bulk |
0.406 in (10.3 mm) |
0.406 x 1.5 in (10.3 x 38.1 mm) |
1.5 in (38.1 mm) |
CE, CSA, UL |
Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
32 V |
32 V |
20 A |
End Cap |
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Littelfuse |
Electric Fuse |
Inline/Holder |
600 V |
300 V |
20 A |
200 kA |
FLSR |
Rated Breaking Capacity at 300 VDC: 20000 A |
0.811 in (20.6 mm) |
5 in (127 mm) |
CSA; UL |
Time Delay |
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Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
250 V |
20 A |
End Cap |
200 kA |
Rated Breaking Capacity at 250 VDC: 20000 A |
0.563 in (14.3 mm) |
0.563 x 2 in (14.3 x 50.8 mm) |
2 in (50.8 mm) |
CSA; UL |
Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
60 V |
20 A |
End Cap |
575 J |
-55 °C (-67 °F) |
Matte Tin |
400 A |
Rated Breaking Capacity at 60 VDC: 500 A |
Bulk |
0.25 in (6.35 mm) |
e3 |
0.25 x 1.25 in (6.35 x 31.75 mm) |
1.25 in (31.75 mm) |
CE; CSA; KTL; PSE; UL |
125 °C (257 °F) |
Time Lag |
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Littelfuse |
Electric Fuse |
Inline/Holder |
58 V |
20 A |
-40 °C (-40 °F) |
1 kA |
0.555 in (14.1 mm) |
0.472 in (12 mm) |
0.555 x 0.472 x 1.063 in (14.1 x 12 x 27 mm) |
1.063 in (27 mm) |
125 °C (257 °F) |
Slow |
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|
Littelfuse |
Electric Fuse |
Through Hole Mount |
32 V |
20 A |
Pin Wire |
1.029 kJ |
-55 °C (-67 °F) |
Tin |
300 A |
318 |
0.275 in (6.99 mm) |
e3 |
0.275 x 1.288 in (6.99 x 32.72 mm) |
1.288 in (32.72 mm) |
CSA; UL |
125 °C (257 °F) |
Fast |
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|
Littelfuse |
Electric Fuse |
20 A |
-55 °C (-67 °F) |
4 h |
Tape And Reel |
0.246 in (6.25 mm) |
0.104 in (2.64 mm) |
65 V |
0.246 x 0.104 x 0.093 in (6.25 x 2.64 x 2.36 mm) |
0.093 in (2.36 mm) |
CSA, TUV, UL |
125 °C (257 °F) |
Very Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
170 V |
20 A |
Tab/Blade |
Silver |
Rated Breaking Capacity at 170 VDC: 100000 |
0.563 in (14.3 mm) |
e4 |
0.563 x 1.26 in (14.3 x 32.004 mm) |
1.26 in (32.004 mm) |
UL |
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Littelfuse |
Electric Fuse |
Inline/Holder |
32 V |
32 V |
20 A |
End Cap |
Bulk |
0.25 in (6.35 mm) |
32 V |
1.25 in (31.75 mm) |
Normal |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
20 A |
End Cap |
3.226 kJ |
-55 °C (-67 °F) |
400 A |
10 ms |
Bulk |
0.205 in (5.2 mm) |
0.197 x 0.787 in (5 x 20 mm) |
0.205 x 0.787 in (5.2 x 20 mm) |
0.787 in (20 mm) |
PSE |
125 °C (257 °F) |
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|
Littelfuse |
Electric Fuse |
20 A |
-40 °C (-40 °F) |
0.898 in (22.8 mm) |
0.638 in (16.2 mm) |
32 V |
0.898 x 0.638 x 0.846 in (22.8 x 16.2 x 21.5 mm) |
0.846 in (21.5 mm) |
125 °C (257 °F) |
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Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 V |
20 A |
End Cap |
200 kA |
0.563 in (14.3 mm) |
Indicator |
0.563 x 2 in (14.3 x 50.8 mm) |
2 in (50.8 mm) |
CSA; UL |
Time Delay |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
690 V |
20 A |
End Cap |
80 kA |
0.866 in (22 mm) |
690 V |
0.866 x 2.283 in (22 x 58 mm) |
0.866 x 2.283 in (22 x 58 mm) |
2.283 in (58 mm) |
IEC |
Fast |
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|
Littelfuse |
Electric Fuse |
Through Hole Mount |
32 V |
32 V |
20 A |
Wire |
203 J |
-60 °C (-76 °F) |
Tin |
100 A |
10 s |
Rated Breaking Capacity at 32 VDC: 300 A |
203 |
Tape And Reel |
0.133 in (3.38 mm) |
e3 |
32 V |
Pico |
0.133 x 0.31 in (3.38 x 7.87 mm) |
0.31 in (7.87 mm) |
CUL; UL |
125 °C (257 °F) |
Very Fast |
|||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
5.5 KV |
20 A |
End Cap |
80 kA |
5 m |
3 in (76.2 mm) |
Striker |
3 x 15.875 in (76.2 x 403.23 mm) |
15.874 in (403.2 mm) |
Medium |
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|
Littelfuse |
Electric Fuse |
20 A |
-55 °C (-67 °F) |
Tin |
300 A |
4 h |
203 |
0.133 in (3.38 mm) |
e3 |
32 V |
Pico |
0.133 x 0.31 in (3.38 x 7.87 mm) |
0.31 in (7.87 mm) |
UL |
125 °C (257 °F) |
Very Fast |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
32 V |
20 A |
Tab/Blade |
1.1 kJ |
-40 °C (-40 °F) |
Silver |
1 kA |
40 ms |
1100 |
Bulk |
1.15 in (29.2 mm) |
0.346 in (8.8 mm) |
e4 |
32 V |
1.15 x 0.348 x 0.85 in (29.21 x 8.85 x 21.59 mm) |
0.85 in (21.6 mm) |
UL |
125 °C (257 °F) |
Time Delay |
|||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
15.5 KV |
20 A |
Tab/Blade |
60 kA |
4.75 in (120.65 mm) |
4.75 x 18.1 in (120.65 x 459.74 mm) |
18.1 in (459.74 mm) |
Medium |
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|
Littelfuse |
Electric Fuse |
Inline/Holder |
450 V |
20 A |
Tab/Blade |
268 J |
-40 °C (-40 °F) |
10 kA |
50 ms |
0.406 in (10.3 mm) |
450 V |
1.531 in (38.9 mm) |
CSA; UL |
125 °C (257 °F) |
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Littelfuse |
Electric Fuse |
Inline/Holder |
125 V |
20 A |
End Cap |
10 kA |
0.406 in (10.31 mm) |
0.406 x 1.5 in (10.31 x 38.1 mm) |
1.5 in (38.1 mm) |
CSA; UL |
Fast |
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Littelfuse |
Electric Fuse |
Inline/Holder |
14 V |
20 A |
Tab/Blade |
-40 °C (-40 °F) |
1 kA |
80 ms |
Bulk |
0.758 in (19.25 mm) |
0.207 in (5.25 mm) |
0.484 in (12.3 mm) |
105 °C (221 °F) |
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Littelfuse |
Electric Fuse |
Inline/Holder |
280 V |
20 A |
End Cap |
631 J |
-55 °C (-67 °F) |
Nickel |
350 A |
314 |
Bulk |
0.25 in (6.35 mm) |
0.25 x 1.25 in (6.35 x 31.75 mm) |
1.25 in (31.75 mm) |
CE; UL |
125 °C (257 °F) |
Fast |
||||||||||||||
|
Littelfuse |
Electric Fuse |
20 A |
Pin Wire |
-55 °C (-67 °F) |
10 kA |
105 |
0.275 in (6.98 mm) |
600 V |
3AB |
0.275 x 1.288 in (6.98 x 32.72 mm) |
1.288 in (32.72 mm) |
CE, UL |
125 °C (257 °F) |
Fast |
||||||||||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
32 V |
20 A |
End Cap |
1.029 kJ |
-55 °C (-67 °F) |
Tin |
300 A |
312 |
Bulk |
0.25 in (6.35 mm) |
e3 |
0.25 x 1.25 in (6.35 x 31.75 mm) |
1.25 in (31.75 mm) |
CSA; UL |
125 °C (257 °F) |
Fast |
A fuse is an electrical safety device that is designed to protect an electrical circuit from damage caused by overcurrent. Fuses are commonly used in residential, commercial, and industrial electrical systems, and they are an important safety device that helps prevent electrical fires, equipment damage, and personal injury.
A fuse typically consists of a metal wire or filament that is enclosed in a fuse body, which is designed to protect the wire from damage. The fuse is connected in series with the electrical circuit, and when the current flowing through the circuit exceeds a preset level, the wire in the fuse will melt or blow, which opens the circuit and prevents further damage to the electrical system.
Fuses are available in a variety of types and sizes, and they can be classified based on their current rating, voltage rating, and speed of operation. Some common types of fuses include cartridge fuses, blade fuses, and plug fuses.
In addition to protecting electrical systems from overcurrent, fuses can also be used to protect electrical equipment and machinery from damage caused by short circuits or other types of electrical faults. They are a cost-effective and reliable method of electrical protection, and they are widely used in a variety of electrical applications.