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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 mA |
End Cap |
100 mJ |
-55 °C (-67 °F) |
Tin |
100 A |
4 h |
0.1 |
0.25 in (6.35 mm) |
Supplemental |
e3 |
250 V |
3AB |
0.25 x 1.25 in (6.35 x 31.75 mm) |
1.25 in (31.75 mm) |
CE |
125 °C (257 °F) |
Time Lag |
|||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 mA |
End Cap |
130 mJ |
-25 °C (-13 °F) |
35 A |
Bulk |
0.205 in (5.2 mm) |
20 ms |
0.197 x 0.787 in (5 x 20 mm) |
0.787 in (20 mm) |
BSI; CCCE; CUL; IMQ; SEMKO; UL; VDE |
70 °C (158 °F) |
Time Lag |
|||||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
125 mA |
Pin Wire |
85 mJ |
-55 °C (-67 °F) |
Tin |
35 A |
4 h |
0.085 |
Bulk |
0.228 in (5.8 mm) |
Supplemental |
e3 |
250 V |
0.197 x 0.787 in (5 x 20 mm) |
0.228 x 0.886 in (5.8 x 22.5 mm) |
0.886 in (22.5 mm) |
CE; UL |
125 °C (257 °F) |
Time Lag |
||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
125 V |
125 V |
125 mA |
Tab/Blade |
-55 °C (-67 °F) |
Gold |
10 kA |
Rated Breaking Capacity at 125 VDC: 10000 A |
0.235 in (5.97 mm) |
e4 |
0.235 x 0.29 in (5.97 x 7.37 mm) |
0.29 in (7.37 mm) |
CSA; QPL; UL |
125 °C (257 °F) |
Very Fast |
||||||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Pure Tin |
50 A |
253 |
Rated Breaking Capacity at 125 VDC: 300 A |
Ammo Pack |
0.11 in (2.8 mm) |
0.11 x 0.28 in (2.8 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; QPL; UL |
125 °C (257 °F) |
Very Fast |
||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
125 mA |
Pin Wire |
1.9 mJ |
-40 °C (-40 °F) |
Tin |
50 A |
5 s |
Bulk |
0.335 in (8.5 mm) |
e3 |
250 V |
TR5 |
0.335 x 0.315 in (8.5 x 8 mm) |
0.315 in (8 mm) |
CSA; CUL; UL |
85 °C (185 °F) |
Very Fast |
||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Pure Tin |
50 A |
253 |
Rated Breaking Capacity at 125 VDC: 300 A |
Ammo Pack |
0.11 in (2.8 mm) |
0.11 x 0.28 in (2.8 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; QPL; UL |
125 °C (257 °F) |
Very Fast |
||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Tin |
50 A |
1 s |
Rated Breaking Capacity at 125 VDC: 300 A |
Tape And Reel |
0.11 in (2.8 mm) |
e3 |
Pico |
0.11 x 0.28 in (2.8 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; QPL; UL |
125 °C (257 °F) |
Very Fast |
|||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Matte Tin |
50 A |
251 |
Rated Breaking Capacity at 125 VDC: 300 A |
Tape And Reel |
0.11 in (2.8 mm) |
e3 |
0.11 x 0.28 in (2.8 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; QPL; UL |
125 °C (257 °F) |
Very Fast |
||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Tin |
50 A |
Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 1000 ms at 200% Rated Current |
Tape And Reel |
0.11 in (2.8 mm) |
e3 |
0.11 x 0.28 in (2.8 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; QPL; UL |
125 °C (257 °F) |
Very Fast |
||||||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 mA |
End Cap |
280 mJ |
-25 °C (-13 °F) |
35 A |
Bulk |
0.248 in (6.3 mm) |
5 s |
0.248 x 1.26 in (6.3 x 32 mm) |
1.26 in (32 mm) |
CSA; UL |
70 °C (158 °F) |
Time Delay |
|||||||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
250 V |
125 mA |
Pin Wire |
2.89 mJ |
-55 °C (-67 °F) |
Tin Lead |
35 A |
4 h |
0.0029 |
0.276 in (7 mm) |
Supplemental |
e0 |
250 V |
3AG |
0.276 x 1.275 in (7 x 32.39 mm) |
1.275 in (32.39 mm) |
CSA; UL |
125 °C (257 °F) |
Fast |
|||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Matte Tin |
50 A |
Rated Breaking Capacity at 125 VDC: 300 A |
Tape And Reel |
0.095 in (2.41 mm) |
e3 |
0.095 x 0.28 in (2.41 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; PSE; UL |
125 °C (257 °F) |
Very Fast |
|||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
125 mA |
Flat |
1.8 mJ |
-55 °C (-67 °F) |
Tin/Lead |
50 A |
2 s |
0.0018 |
Bulk |
0.372 in (9.45 mm) |
0.25 in (6.35 mm) |
e0 |
250 V |
0.372 x 0.25 x 0.165 in (9.45 x 6.35 x 4.19 mm) |
0.165 in (4.19 mm) |
CSA, UL |
125 °C (257 °F) |
Fast |
||||||||||
|
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 mA |
End Cap |
100 mJ |
-55 °C (-67 °F) |
Matte Tin |
100 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 |
125 °C (257 °F) |
Time Lag |
|||||||||||||
|
Littelfuse |
Electric Fuse |
Inline/Holder |
500 V |
300 V |
125 mA |
End Cap |
10 kA |
0.406 in (10.31 mm) |
500 V |
0.394 x 1.496 in (10 x 38 mm) |
1.5 in (38.1 mm) |
CSA; UL |
Time Delay |
|||||||||||||||||
|
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 mA |
End Cap |
2.8 mJ |
-55 °C (-67 °F) |
Tin |
35 A |
235 |
0.205 in (5.2 mm) |
e3 |
0.205 x 0.787 in (5.2 x 20 mm) |
0.787 in (20 mm) |
CE; CSA; KTL; UL |
125 °C (257 °F) |
Fast |
|||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
125 mA |
Pin Wire |
100 mJ |
-55 °C (-67 °F) |
Tin |
4 h |
0.1 |
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 |
125 °C (257 °F) |
Time Lag |
|||||||||||
|
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 mA |
End Cap |
2.73 mJ |
-55 °C (-67 °F) |
35 A |
5 s |
Bulk |
0.197 in (5 mm) |
250 V |
0.197 x 0.787 in (5 x 20 mm) |
0.787 in (20 mm) |
CSA, CE, UL |
125 °C (257 °F) |
Fast |
|||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
125 mA |
Pin Wire |
66 mJ |
-40 °C (-40 °F) |
Matte Tin |
35 A |
372 |
Bulk |
0.335 in (8.5 mm) |
e3 |
0.335 x 0.315 in (8.5 x 8 mm) |
0.315 in (8 mm) |
CCC; KTL; SEMKO; UL; VDE |
85 °C (185 °F) |
Time Lag |
||||||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
500 V |
500 V |
125 mA |
End Cap |
Nickel |
592 |
|||||||||||||||||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 mA |
End Cap |
25 mJ |
-40 °C (-40 °F) |
1.5 kA |
Bulk |
0.205 in (5.2 mm) |
250 V |
10 ms |
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) |
CNCA; CUL; IEC; UL |
85 °C (185 °F) |
Time Lag |
|||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Pure Tin |
50 A |
1 s |
Pre Arcing Time: Open within 1 s at 200% Rated Current |
Tape And Reel |
0.103 in (2.61 mm) |
Pico |
0.103 x 0.28 in (2.61 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; CUL; QPL; UL |
125 °C (257 °F) |
Very Fast |
||||||||||
|
Littelfuse |
Electric Fuse |
Surface Mount |
125 V |
125 V |
125 mA |
J Bend |
1.63 mJ |
-55 °C (-67 °F) |
Tin |
50 A |
100 ms |
Pre Arcing Time: Open within 0.1 s at 300% Rated Current |
0.0016 |
Tape And Reel |
0.285 in (7.24 mm) |
0.17 in (4.32 mm) |
e3 |
125 V |
Pico |
0.285 x 0.17 x 0.12 in (7.24 x 4.32 x 3.05 mm) |
0.12 in (3.05 mm) |
CSA; UL |
125 °C (257 °F) |
Very Fast |
||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
50 A |
1 s |
Pre Arcing Time: Open within 1 s at 200% Rated Current |
Ammo Pack |
0.103 in (2.61 mm) |
125 V |
Pico |
0.28 in (7.11 mm) |
CSA; CUL; QPL; UL |
125 °C (257 °F) |
Very Fast |
||||||||||||
|
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 mA |
End Cap |
5.45 mJ |
-55 °C (-67 °F) |
Matte Tin |
1.5 kA |
216P |
Bulk |
0.205 in (5.2 mm) |
e3 |
0.205 x 0.787 in (5.2 x 20 mm) |
0.787 in (20 mm) |
CE; CSA; IEC; SEMKO; UL; VDE |
125 °C (257 °F) |
Fast |
||||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
-55 °C (-67 °F) |
50 A |
4 h |
Rated Breaking Capacity at 125 VDC: 300 A |
0.093 in (2.36 mm) |
Supplemental |
125 V |
Pico |
0.093 x 0.28 in (2.36 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; UL |
125 °C (257 °F) |
Very Fast |
||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
125 mA |
Pin Wire |
1.9 mJ |
-40 °C (-40 °F) |
Tin |
50 A |
5 s |
Ammo Pack; Tape |
0.335 in (8.5 mm) |
e3 |
250 V |
TR5 |
0.335 x 0.315 in (8.5 x 8 mm) |
0.315 in (8 mm) |
CSA; CUL; UL |
85 °C (185 °F) |
Very Fast |
||||||||||
Littelfuse |
Electric Fuse |
125 mA |
Pin Wire |
-55 °C (-67 °F) |
35 A |
4 h |
0.15 |
1.25 in (31.75 mm) |
Supplemental |
250 V |
30 Ω |
3AG |
1.25 in (31.75 mm) |
CE; CSA; UL |
125 °C (257 °F) |
Time Lag |
|||||||||||||||
Littelfuse |
Electric Fuse |
125 mA |
-40 °C (-40 °F) |
35 A |
0.12 |
0.335 in (8.5 mm) |
250 V |
0.335 x 0.333 in (8.5 x 8.45 mm) |
0.333 in (8.45 mm) |
CSA, SEMKO, UL, VDE |
85 °C (185 °F) |
Time Lag |
|||||||||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
125 mA |
Pin Wire |
7.2 mJ |
-55 °C (-67 °F) |
Tin |
50 A |
4 h |
0.0072 |
Bulk |
0.142 in (3.6 mm) |
e3 |
250 V |
0.142 x 0.394 in (3.6 x 10 mm) |
0.394 in (10 mm) |
UL |
125 °C (257 °F) |
Fast |
||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
125 mA |
Pin Wire |
2.51 mJ |
-55 °C (-67 °F) |
Tin |
50 A |
100 ms |
Tape And Reel |
0.155 in (3.94 mm) |
e3 |
250 V |
Pico |
0.155 x 0.28 in (3.94 x 7.11 mm) |
CSA, UL |
125 °C (257 °F) |
Very Fast |
|||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
65 V |
65 V |
125 mA |
Pin Wire |
9.3 mJ |
-40 °C (-40 °F) |
Tin |
50 A |
Rated Breaking Capacity at 65 VDC: 50 A |
Ammo Pack; Tape And Reel |
0.335 in (8.5 mm) |
0.157 in (4 mm) |
e3 |
65 V |
TE5 |
0.335 x 0.157 x 0.315 in (8.5 x 4 x 8 mm) |
0.315 in (8 mm) |
UL |
85 °C (185 °F) |
Medium Time Lag |
||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 mA |
End Cap |
66 mJ |
-25 °C (-13 °F) |
35 A |
Bulk |
0.205 in (5.2 mm) |
5 s |
0.197 x 0.787 in (5 x 20 mm) |
0.787 in (20 mm) |
CSA; UL |
70 °C (158 °F) |
Time Delay |
|||||||||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
125 V |
125 mA |
End Cap |
85 mJ |
-55 °C (-67 °F) |
Nickel |
35 A |
239 |
0.205 in (5.2 mm) |
0.205 x 0.787 in (5.2 x 20 mm) |
0.787 in (20 mm) |
CE; UL |
125 °C (257 °F) |
Time Lag |
|||||||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Pure Tin |
50 A |
0253 |
Rated Breaking Capacity at 125 VDC: 300 A |
Tape And Reel |
0.11 in (2.8 mm) |
0.11 x 0.28 in (2.8 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; PSE; QPL; UL |
125 °C (257 °F) |
Very Fast |
||||||||||||
|
Littelfuse |
Electric Fuse |
125 mA |
Pin Wire |
-55 °C (-67 °F) |
300 A |
0.0017 |
Tape And Reel |
0.103 in (2.61 mm) |
Supplemental |
125 V |
Pico |
0.103 x 0.28 in (2.61 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA, UL |
125 °C (257 °F) |
Very Fast |
||||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Tin |
50 A |
1 s |
Rated Breaking Capacity at 125 VDC: 300 A |
0.0017 |
Tape And Reel |
0.11 in (2.8 mm) |
e3 |
125 V |
Pico |
0.11 x 0.28 in (2.8 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; QPL; UL |
125 °C (257 °F) |
Very Fast |
|||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
125 mA |
End Cap |
4.77 mJ |
-55 °C (-67 °F) |
Nickel |
35 A |
20 ms |
Pre Arcing Time: Open within 20 ms at 1000% Rated Current |
0.205 in (5.2 mm) |
250 V |
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) |
CCC; CE; IEC; SEMKO; VDE |
125 °C (257 °F) |
Fast |
||||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
125 mA |
Pin Wire |
2.99 mJ |
Tin Lead |
50 A |
4 h |
0.0029 |
Tape And Reel |
0.154 in (3.9 mm) |
e0 |
250 V |
0.154 x 0.433 in (3.9 x 11 mm) |
0.433 in (11 mm) |
CSA; UL |
Fast |
|||||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
0.095 in (2.41 mm) |
0.095 x 0.28 in (2.41 x 7.11 mm) |
0.28 in (7.11 mm) |
Fast |
|||||||||||||||||||||
Littelfuse |
Electric Fuse |
Surface Mount |
250 V |
125 mA |
Gull Wing |
1.8 mJ |
-55 °C (-67 °F) |
Tin/Lead |
50 A |
2 s |
0.0018 |
Bulk |
0.372 in (9.45 mm) |
0.25 in (6.35 mm) |
e0 |
250 V |
0.372 x 0.25 x 0.165 in (9.45 x 6.35 x 4.19 mm) |
0.165 in (4.19 mm) |
CSA, UL |
125 °C (257 °F) |
Fast |
||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
-55 °C (-67 °F) |
50 A |
4 h |
Tape And Reel |
0.11 in (2.8 mm) |
125 V |
Pico |
0.11 x 0.28 in (2.8 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA, UL |
125 °C (257 °F) |
Very Fast |
|||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Pure Tin |
50 A |
Rated Breaking Capacity at 125 VDC: 300 A |
Tape And Reel |
0.095 in (2.41 mm) |
0.095 x 0.28 in (2.41 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; PSE; QPL; UL |
125 °C (257 °F) |
Very Fast |
||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Tin |
50 A |
1 s |
Pre Arcing Time: Open within 1 s at 200% Rated Current |
Ammo Pack |
0.11 in (2.8 mm) |
e3 |
Pico |
0.11 x 0.28 in (2.8 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; CUL; UL |
125 °C (257 °F) |
Very Fast |
|||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
Tin |
50 A |
1 s |
Rated Breaking Capacity at 125 VDC: 300 A |
Ammo Pack |
0.11 in (2.8 mm) |
e3 |
Pico |
0.11 x 0.28 in (2.8 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; QPL; UL |
125 °C (257 °F) |
Very Fast |
|||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
-55 °C (-67 °F) |
Pure Tin |
50 A |
300 ms |
Pre-Arcing Time: Open within 0.3 s at 300% Rated Current |
Ammo Pack |
0.11 in (2.8 mm) |
Pico |
0.28 in (7.11 mm) |
CSA; UL |
125 °C (257 °F) |
Very Fast |
||||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
125 mA |
Pin Wire |
1.74 mJ |
-55 °C (-67 °F) |
50 A |
1 s |
Pre Arcing Time: Open within 1 s at 200% Rated Current |
Ammo Pack |
0.103 in (2.61 mm) |
125 V |
Pico |
0.28 in (7.11 mm) |
CSA; CUL; QPL; UL |
125 °C (257 °F) |
Very 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.