Fuses & Circuit Breakers

Although they work in different ways, fuses and circuit breakers broadly have the same purpose; to protect electrical appliances and electrical circuits from short circuits, and excessive current (called overcurrent or overload).

Fuses

Fuses are relatively low cost electrical safety devices. If too much current enters the circuit, the fuse will burn out (sometimes called blowing out). When the fuse blows out it breaks the circuit. This protects the attached devices and allows you to touch devices without being electrocuted. When the fuse blows, it must be replaced before using the device or appliance again.

Circuit breakers

Circuit breakers work in a similar way to fuses, but they are resettable. Once a fault is detected (this is typically a short circuit or an excessive amount of current flowing through the circuit) the circuit breaker will interrupt the flow of current. When the circuit breaker trips, it's simply a case of flicking a switch to reset the circuit breaker. As soon as you've reset the circuit breaker, it is ready to use again.

Circuit Breakers
Circuit Breakers
Earth & Lightning Protection
Earth & Lightning Protection
Fuse Holders & Accessories
Fuse Holders & Accessories
Fuses
Fuses

47282 產品顯示為 Fuses & Circuit Breakers

33 的 999+
Better World
Schneider Electric, PowerPact MCCB 3P 100A, Breaking Capacity 14 kA, Fixed Mount
  • RS庫存編號 212-0149
  • 製造零件編號 BDL36100LU
个
HK$4,417.40
Schneider Electric, ComPacT NSX MCCB 3P 250A, Fixed Mount
  • RS庫存編號 254-6352
  • 製造零件編號 C25F3
个
HK$7,108.90
Better World
Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 55 kA
  • RS庫存編號 209-7030
  • 製造零件編號 3VA1225-5EF32-0AA0
个
HK$8,151.00
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 55 kA
  • RS庫存編號 209-7070
  • 製造零件編號 3VA2140-5HN46-0AA0
个
HK$7,963.00
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 55 kA
  • RS庫存編號 209-7053
  • 製造零件編號 3VA2040-5HN42-0AA0
个
HK$7,600.30
Littelfuse 0.12A Resettable Fuse, 240V dc
  • RS庫存編號 495-0713
  • 製造零件編號 LVR012K
个（每托盘 5 ）
HK$4.52
Eaton 10A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 537-1060
  • 製造零件編號 S505-10-R
个（每托盘 10 ）
HK$3.78
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 500mA Curve C, 100 → 133V AC, 72V DC, 6 kA Breaking Capacity
  • RS庫存編號 790-8888
  • 製造零件編號 A9F44170
个
HK$233.10
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 6A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS庫存編號 211-2400
  • 製造零件編號 M9F23306
个
HK$929.10
Europa EUC1P EUB MCB, 1P, 4A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS庫存編號 849-6456
  • 製造零件編號 EUC1P4B
个
HK$72.90
Eaton xEffect MCB, 1P, 1A Curve D, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS庫存編號 922-7024
  • 製造零件編號 278569 FAZ-D1/1
个
HK$249.20
Eaton xEffect MCB, 1P, 6A Curve D, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS庫存編號 922-7033
  • 製造零件編號 278578 FAZ-D6/1
个
HK$251.70
Eaton xEffect MCB, 2P, 32A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 769-4643
  • 製造零件編號 239106 FAZ6-C32/2
个
HK$365.80
Eaton xEffect MCB, 4P, 63A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 769-4734
  • 製造零件編號 239224 FAZ6-C63/4
个
HK$1,766.40
Eaton xEffect MCB, 1P, 32A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 769-4797
  • 製造零件編號 168066 FAZ6-D32/1
个
HK$185.70
Better World
ABB System Pro M Compact S200 MCB, 1+N, 20A Curve C
  • RS庫存編號 237-3199
  • 製造零件編號 2CDS251103R0204
个
HK$462.40
Eaton xEffect MCB, 1P, 12A Curve B, 240 → 415V AC, 60V DC, 10 kA Breaking Capacity
  • RS庫存編號 270-5262
  • 製造零件編號 278532 FAZ-B12/1
个
HK$199.30
Schneider Electric Resi9 Resi9 XE DM MCB, 1P, 20A Curve D, 230V AC, 3000 A Breaking Capacity
  • RS庫存編號 287-6048
  • 製造零件編號 R9EFD620
个
HK$471.06
Lovato ModuLo P1MB MCB, 3P, 63A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS庫存編號 825-5860
  • 製造零件編號 P1MB3PC63
个
HK$734.10
Better World
ABB S200C MCB, 4P, 32A Curve C, 415V AC, 6 kA Breaking Capacity
  • RS庫存編號 212-1670
  • 製造零件編號 2CDS254280R0324
个
HK$1,213.29
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