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 |
4 A |
End Cap |
76.1 J |
-60 °C (-76 °F) |
Nickel |
200 A |
5 s |
76.1 |
Bulk |
0.25 in (6.35 mm) |
Supplemental |
250 V |
3AG |
0.25 x 1.25 in (6.35 x 31.75 mm) |
1.25 in (31.75 mm) |
CE; CSA; KC; PSE; UL |
125 °C (257 °F) |
Time Lag |
|||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
4 A |
Pin Wire |
10.6 J |
-55 °C (-67 °F) |
Tin |
50 A |
4 h |
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) |
PSE; UL |
125 °C (257 °F) |
Time Lag |
|||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
4 A |
Pin Wire |
35 J |
-60 °C (-76 °F) |
Tin |
50 A |
2 ms |
Pre Arcing Time: Blow within 0.002 s at 800% Rated Current |
35 |
Ammo Pack |
0.135 in (3.43 mm) |
e3 |
125 V |
Pico |
0.135 x 0.28 in (3.43 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; PSE; UL |
125 °C (257 °F) |
Time Delay |
|||||||
|
TE Connectivity |
Electric Fuse |
Surface Mount |
32 V |
4 A |
Wraparound |
2.2 J |
-55 °C (-67 °F) |
50 A |
4 h |
Tape And Reel |
0.126 in (3.2 mm) |
0.063 in (1.6 mm) |
1206 |
0.126 x 0.063 x 0.038 in (3.2 x 1.6 x 0.97 mm) |
0.038 in (0.97 mm) |
UL |
125 °C (257 °F) |
Slow |
||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
300 V |
300 V |
4 A |
Pin Wire |
126.4 J |
-40 °C (-40 °F) |
Matte Tin |
50 A |
20 s |
100 |
Ammo Pack |
0.335 in (8.5 mm) |
0.157 in (4 mm) |
e3 |
300 V |
TE5 |
0.335 x 0.157 x 0.315 in (8.5 x 4 x 8 mm) |
0.315 in (8 mm) |
CUL; PSE; UL; VDE |
85 °C (185 °F) |
Time Lag |
|||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
4 A |
Pin Wire |
3.5 J |
-40 °C (-40 °F) |
Matte 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 |
300 V |
300 V |
4 A |
Wire |
36.8 kJ |
-40 °C (-40 °F) |
Matte Tin |
100 A |
1 s |
Ammo Pack |
0.488 in (12.4 mm) |
0.252 in (6.4 mm) |
e3 |
300 V |
0.488 x 0.252 x 0.362 in (12.4 x 6.4 x 9.2 mm) |
0.362 in (9.2 mm) |
IEC; CUL; PSE; UL |
125 °C (257 °F) |
Time Lag |
|||||||||
|
Littelfuse |
Electric Fuse |
Inline/Holder |
600 V |
300 V |
4 A |
End Cap |
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 |
Time Delay |
|||||||||||||||
|
Littelfuse |
Electric Fuse |
Inline/Holder |
600 V |
300 V |
4 A |
End Cap |
83.81 J |
200 kA |
12 s |
Rated Breaking Capacity at 300 VDC: 20000 A |
Bulk |
0.406 in (10.3 mm) |
1.5 in (38.1 mm) |
CE; CSA; UL |
Time Delay |
|||||||||||||||
|
Littelfuse |
Electric Fuse |
Inline/Holder |
600 V |
600 V |
4 A |
End Cap |
19 mJ |
-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 |
||||||||||||
|
Bourns |
Electric Fuse |
Surface Mount |
32 V |
4 A |
Wraparound |
114.5 mJ |
-20 °C (-4 °F) |
Tin Over Nickel |
35 A |
5 s |
Tape And Reel, 7 inch |
0.039 in (1 mm) |
0.02 in (0.52 mm) |
e3 |
0402 |
0.039 x 0.02 x 0.014 in (1 x 0.52 x 0.35 mm) |
0.014 in (0.35 mm) |
UL |
105 °C (221 °F) |
Slow |
||||||||||
|
Bourns |
Electric Fuse |
Surface Mount |
32 V |
4 A |
Wraparound |
1.109 J |
-20 °C (-4 °F) |
Tin Over Nickel |
50 A |
Tape And Reel, 7 inch |
0.122 in (3.1 mm) |
0.061 in (1.55 mm) |
e3 |
5 s |
1206 |
0.122 x 0.061 x 0.024 in (3.1 x 1.55 x 0.6 mm) |
0.024 in (0.6 mm) |
UL |
105 °C (221 °F) |
Fast |
||||||||||
|
Bourns |
Electric Fuse |
Surface Mount |
125 V |
125 V |
4 A |
Wraparound |
4.14 J |
-55 °C (-67 °F) |
Tin Over Nickel |
50 A |
10 ms |
Tape And Reel, 7 inch |
0.24 in (6.1 mm) |
0.098 in (2.49 mm) |
2410 |
0.085 in (2.16 mm) |
UL |
125 °C (257 °F) |
Fast |
|||||||||||
|
Eaton Corporation |
Electric Fuse |
Surface Mount |
125 V |
72 V |
4 A |
Wraparound |
7.4 J |
-55 °C (-67 °F) |
50 A |
Rated Breaking Capacity at 72 VDC: 50 A |
7.4 |
Tape And Reel |
0.107 in (2.72 mm) |
0.107 in (2.72 mm) |
125 V |
0.107 x 0.107 x 0.24 in (2.72 x 2.72 x 6.1 mm) |
0.24 in (6.1 mm) |
CUL; UL |
125 °C (257 °F) |
Fast |
||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
4 A |
Pin Wire |
6.7 J |
-40 °C (-40 °F) |
Matte Tin |
40 A |
20 ms |
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) |
CCC; CE; CUL; PSE; UL; VDE |
85 °C (185 °F) |
Fast |
||||||||||
|
Eaton Corporation |
Electric Fuse |
Inline/Holder |
250 V |
4 A |
End Cap |
71.8 J |
Nickel |
40 A |
71.8 |
Bulk |
0.205 in (5.2 mm) |
250 V |
20 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) |
BSI; CCC; CSA; IMQ; PSE; SEMKO; UL; VDE |
Time Delay |
||||||||||||
|
Eaton Corporation |
Electric Fuse |
Inline/Holder |
250 V |
4 A |
End Cap |
38.45 J |
-55 °C (-67 °F) |
Nickel |
1.5 kA |
38.45 |
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) |
BSI, CCC, CSA, CUL, IMQ, KC, PSE, SEMKO, UL, VDE |
125 °C (257 °F) |
Time Delay |
||||||||||
|
Eaton Corporation |
Electric Fuse |
Inline/Holder |
600 V |
400 V |
4 A |
End Cap |
38.45 J |
100 A |
Rated Breaking Capacity at 400 VDC: 1500 A |
Bag |
0.205 in (5.2 mm) |
0.205 x 0.787 in (5.2 x 20 mm) |
0.787 in (20 mm) |
CCC; PSE/JET; TUV; UL |
Time Delay |
|||||||||||||||
|
Eaton Corporation |
Electric Fuse |
Inline/Holder |
250 V |
4 A |
End Cap |
14 J |
Nickel |
1.5 kA |
14 |
Bag |
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) |
BSI; CCC; CSA; IMQ; MITI; SEMKO; UL; VDE |
Fast |
|||||||||||||
|
Cooper Industries |
Electric Fuse |
Inline/Holder |
250 V |
4 A |
End Cap |
38.45 J |
Nickel |
1.5 kA |
S505 |
Bag |
0.205 in (5.2 mm) |
0.205 x 0.787 in (5.2 x 20 mm) |
0.787 in (20 mm) |
BSI; CCC/CQC; CSA; IEC; IMQ; KC; PSE/JET; SEMKO; UL; VDE |
Time Delay |
|||||||||||||||
|
Eaton Corporation |
Electric Fuse |
Inline/Holder |
250 V |
4 A |
End Cap |
71.8 J |
Nickel |
40 A |
71.8 |
Bag |
0.205 in (5.2 mm) |
250 V |
20 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) |
BSI; CCC; CSA; IMQ; PSE; SEMKO; UL; VDE |
Time Delay |
||||||||||||
|
Eaton Corporation |
Electric Fuse |
Surface Mount |
125 V |
125 V |
4 A |
Wraparound |
4.4 J |
-55 °C (-67 °F) |
Silver Over Nickel |
100 A |
5 s |
Pre Arcing Time: Open within 5 s at 200% Rated Current, Rated Breaking Capacity at 125 VDC: 300 A |
4.4 |
Tape And Reel, 13 inch |
0.24 in (6.1 mm) |
0.101 in (2.57 mm) |
e4 |
125 V |
2410 |
0.24 x 0.101 x 0.101 in (6.1 x 2.57 x 2.57 mm) |
0.101 in (2.57 mm) |
CQC; CUL; PSE; UL |
125 °C (257 °F) |
Fast |
||||||
|
Eaton Corporation |
Electric Fuse |
Inline/Holder |
1.5 KV |
4 A |
End Cap |
15 J |
30 kA |
Bulk |
0.406 in (10.3 mm) |
0.394 x 3.346 in (10 x 85 mm) |
3.346 in (85 mm) |
IEC; UL |
||||||||||||||||||
|
Eaton Corporation |
Electric Fuse |
Surface Mount |
250 V |
60 V |
4 A |
Wraparound |
-55 °C (-67 °F) |
50 A |
1 m |
Rated Breaking Capacity at 60 VDC: 50 A |
Tape And Reel, 8.66 inch |
0.24 in (6.1 mm) |
0.107 in (2.72 mm) |
2410 |
0.107 in (2.72 mm) |
CUL; UL |
125 °C (257 °F) |
Time Delay |
||||||||||||
|
Eaton Corporation |
Electric Fuse |
Surface Mount |
125 V |
60 V |
4 A |
Wraparound |
38.8 J |
50 A |
Rated Breaking Capacity at 60 VDC: 50 A |
Tape And Reel |
0.107 in (2.72 mm) |
0.107 in (2.72 mm) |
125 V |
6125 |
0.107 x 0.107 x 0.24 in (2.72 x 2.72 x 6.1 mm) |
0.24 in (6.1 mm) |
CSA; UL |
Time Delay |
||||||||||||
|
Bourns |
Electric Fuse |
Surface Mount |
32 V |
4 A |
Wraparound |
954 mJ |
-20 °C (-4 °F) |
Tin Over Nickel |
50 A |
1 m |
Tape And Reel, 7 inch |
0.122 in (3.1 mm) |
0.061 in (1.55 mm) |
e3 |
1206 |
0.122 x 0.061 x 0.024 in (3.1 x 1.55 x 0.6 mm) |
0.024 in (0.6 mm) |
UL |
105 °C (221 °F) |
Fast |
||||||||||
|
Phoenix Contact |
Electric Fuse |
Inline/Holder |
400 V |
250 V |
4 A |
End Cap |
-60 °C (-76 °F) |
0.433 in (11 mm) |
1.417 in (36 mm) |
EAC |
85 °C (185 °F) |
|||||||||||||||||||
|
Phoenix Contact |
Electric Fuse |
Inline/Holder |
24 V |
24 V |
4 A |
Tab/Blade |
0.748 in (19 mm) |
0.197 in (5 mm) |
0.512 in (13 mm) |
EAC |
||||||||||||||||||||
Littelfuse |
Electric Fuse |
Surface Mount |
125 V |
125 V |
4 A |
End Cap |
34.4 J |
-55 °C (-67 °F) |
Tin Lead |
50 A |
4 h |
Rated Breaking Capacity at 125 VDC: 50 A |
34.4 |
0.24 in (6.1 mm) |
0.106 in (2.69 mm) |
e0 |
125 V |
18.6 mΩ |
Nano |
0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm) |
0.106 in (2.69 mm) |
CSA; UL |
125 °C (257 °F) |
Slow |
|||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
4 A |
Pin Wire |
35 J |
-60 °C (-76 °F) |
Tin |
50 A |
2 ms |
Pre Arcing Time: Blow within 0.002 s at 800% Rated Current |
35 |
Ammo Pack |
0.135 in (3.43 mm) |
e3 |
125 V |
Pico |
0.135 x 0.28 in (3.43 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; PSE; UL |
125 °C (257 °F) |
Time Delay |
|||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
4 A |
Pin Wire |
2.45 J |
-55 °C (-67 °F) |
Matte Tin |
50 A |
251 |
Rated Breaking Capacity at 125 VDC: 300 A |
Ammo Pack |
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) |
CCC; CSA; PSE; QPL; TUV; UL |
125 °C (257 °F) |
Very Fast |
||||||||||
|
Littelfuse |
Electric Fuse |
Inline/Holder |
250 V |
4 A |
End Cap |
29.165 J |
-55 °C (-67 °F) |
40 A |
10 ms |
Bulk |
0.205 in (5.2 mm) |
0.197 x 0.787 in (5 x 20 mm) |
0.787 in (20 mm) |
CCC; CE; CSA; IEC; KC; PSE; SEMKO; SEV; UL; VDE |
125 °C (257 °F) |
Very Fast |
||||||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
4 A |
Pin Wire |
40 J |
-25 °C (-13 °F) |
10 kA |
Tape And Reel |
0.213 in (5.4 mm) |
5 s |
0.197 x 0.787 in (5 x 20 mm) |
0.827 in (21 mm) |
CUL; UL |
70 °C (158 °F) |
Very Fast |
|||||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
4 A |
Pin Wire |
1.38 J |
-55 °C (-67 °F) |
Tin |
10 kA |
4 h |
Bulk |
0.25 in (6.35 mm) |
e3 |
125 V |
Micro |
0.25 x 0.35 in (6.35 x 8.89 mm) |
0.35 in (8.89 mm) |
CSA; QPL; UL |
125 °C (257 °F) |
Very Fast |
|||||||||
Littelfuse |
Electric Fuse |
Surface Mount |
250 V |
4 A |
Gull Wing |
8.75 J |
-55 °C (-67 °F) |
Tin Lead |
50 A |
4 h |
8.75 |
Tape And Reel |
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) |
Slow |
||||||||||
|
Littelfuse |
Electric Fuse |
4 A |
End Cap |
100 kA |
0.406 in (10.3 mm) |
G |
600 V |
0.406 x 1.311 in (10.3 x 33.3 mm) |
1.311 in (33.3 mm) |
CSA, UL |
Medium |
|||||||||||||||||||
|
Littelfuse |
Electric Fuse |
4 A |
End Cap |
-55 °C (-67 °F) |
Tin |
100 A |
4 h |
148 |
0.177 in (4.5 mm) |
e3 |
350 V |
2AG |
0.177 x 0.57 in (4.5 x 14.48 mm) |
0.57 in (14.48 mm) |
CE, PSE, UL |
125 °C (257 °F) |
Time Lag |
|||||||||||||
|
Littelfuse |
Electric Fuse |
Inline/Holder |
1.5 KV |
4 A |
End Cap |
14 J |
30 kA |
4 m |
Bulk |
0.406 in (10.31 mm) |
GPV |
1.5 KV |
0.394 x 3.346 in (10 x 85 mm) |
3.333 in (84.65 mm) |
CUL; TUV; UL |
Fast |
||||||||||||||
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
4 A |
Pin Wire |
9.4 J |
Tin Lead |
10 kA |
224 |
Tape And Reel |
0.177 in (4.5 mm) |
e0 |
0.177 x 0.57 in (4.5 x 14.48 mm) |
0.57 in (14.48 mm) |
CSA; METI; PSE; UL |
Fast |
|||||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
4 A |
Pin Wire |
2.45 J |
-55 °C (-67 °F) |
Tin |
50 A |
4 ms |
Pre-Arcing Time: Open within 4 ms at 1000% 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) |
CCC; CSA; CUL; PSE; TUV; UL |
125 °C (257 °F) |
Very Fast |
|||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
125 V |
4 A |
End Cap |
32 J |
-25 °C (-13 °F) |
10 kA |
Bulk |
0.205 in (5.2 mm) |
120 s |
0.197 x 0.787 in (5 x 20 mm) |
0.787 in (20 mm) |
CUL; UL |
70 °C (158 °F) |
Medium Time Lag |
|||||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
4 A |
Wire |
72 J |
-40 °C (-40 °F) |
Matte Tin |
100 A |
150 ms |
58 |
Ammo Pack |
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) |
CCC; CE; CUL; PSE; UL; VDE |
85 °C (185 °F) |
Time Lag |
|||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
4 A |
Pin Wire |
133.4 J |
-40 °C (-40 °F) |
Matte Tin |
130 A |
20 ms |
Ammo Pack; Tape And Reel |
0.335 in (8.5 mm) |
0.157 in (4 mm) |
e3 |
TE5 |
0.335 x 0.157 x 0.315 in (8.5 x 4 x 8 mm) |
0.315 in (8 mm) |
IEC; PSE; UL |
125 °C (257 °F) |
Time Lag |
||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
4 A |
Pin Wire |
9.71 J |
-55 °C (-67 °F) |
Tin |
4 h |
9.71 |
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 |
|||||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
125 V |
4 A |
End Cap |
40 J |
-25 °C (-13 °F) |
10 kA |
Bulk |
0.205 in (5.2 mm) |
5 s |
0.197 x 0.787 in (5 x 20 mm) |
0.787 in (20 mm) |
CUL; UL |
70 °C (158 °F) |
Very Fast |
|||||||||||||||
|
Littelfuse |
Electric Fuse |
Through Hole Mount |
250 V |
250 V |
4 A |
Wire |
14.995 J |
-55 °C (-67 °F) |
Tin |
1.5 kA |
10 ms |
Bulk |
0.228 in (5.8 mm) |
e3 |
0.197 x 0.787 in (5 x 20 mm) |
0.886 in (22.5 mm) |
CCC, CE, CSA, PSE, UL, VDE |
125 °C (257 °F) |
Fast |
|||||||||||
Littelfuse |
Electric Fuse |
Inline/Holder |
125 V |
4 A |
End Cap |
9.4 J |
10 kA |
225 |
Tape And Reel |
0.177 in (4.5 mm) |
0.177 x 0.57 in (4.5 x 14.48 mm) |
0.57 in (14.48 mm) |
CSA; METI; PSE; UL |
Fast |
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|
Littelfuse |
Electric Fuse |
Through Hole Mount |
125 V |
125 V |
4 A |
Pin Wire |
35 J |
-55 °C (-67 °F) |
Pure Tin |
50 A |
Ammo Pack |
0.135 in (3.43 mm) |
0.135 x 0.28 in (3.43 x 7.11 mm) |
0.28 in (7.11 mm) |
CSA; PSE; UL |
125 °C (257 °F) |
Time Lag |
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.