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

47290 產品顯示為 Fuses & Circuit Breakers

22 的 999+
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, 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
Siemens Sentron 5SY4 MCB, 1P, 16A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS庫存編號 772-1256
  • 製造零件編號 5SY4116-8
个
HK$472.30
Lovato ModuLo P1MB MCB, 3P, 2A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS庫存編號 825-5867
  • 製造零件編號 P1MB3PD02
个
HK$734.10
Lovato ModuLo P1MB MCB, 2P, 6A Curve C, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS庫存編號 825-5712
  • 製造零件編號 P1MB2PC06
个
HK$457.20
Better World
ABB System Pro M Compact S200M MCB, 4P, 63A Curve D, 400V AC, 15 kA Breaking Capacity
  • RS庫存編號 231-9778
  • 製造零件編號 2CDS274001R0631 S204M D 63A - 15 KA
毎盒：1 个
HK$1,721.23
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
Better World
Siemens Sentron 5SY4 MCB, 1P, 20A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 383-1992
  • 製造零件編號 5SY4120-6
个
HK$214.80
Siemens 5SY41 5SY MCB Mini Circuit Breaker, 1P, 6A, Type A, 400V AC, 60V DC, 35 kA Breaking Capacity
  • RS庫存編號 266-9592
  • 製造零件編號 5SY4115-5
个
HK$415.30
Better World
ABB System Pro M Compact S200 MCB, 3P, 6A Curve K, 440V AC, 20 kA Breaking Capacity
  • RS庫存編號 514-0204
  • 製造零件編號 2CDS253001R0377 S203-K6
个
HK$972.40
Better World
ABB System Pro M Compact S200 MCB, 3P, 2A Curve D, 440V AC, 6 kA Breaking Capacity
  • RS庫存編號 527-9554
  • 製造零件編號 2CDS253001R0021 S203-D2
个
HK$678.40
Better World
ABB Compact Home SH200 MCB, 2P, 6A Curve C, 440V AC, 6 kA Breaking Capacity
  • RS庫存編號 231-9655
  • 製造零件編號 2CDS212001R0064 SH202-C 6
毎盒：1 个
HK$384.30
ABB System Pro M Compact S200M MCB, 2P, 20A, Type Z, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS庫存編號 202-907
  • 製造零件編號 2CDS272001R0488
个
HK$2,230.94
Siemens 630A Solid Link for LV HRC Fuses
  • RS庫存編號 395-711
  • 製造零件編號 3NG1402
个
HK$602.90
Better World
Siemens Sentron 5SY4 MCB, 3P, 32A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 772-1385
  • 製造零件編號 5SY4332-8
个
HK$1,257.30
Better World
Siemens SENTRON 5SY MCB, 1P, 2A, Type A
  • RS庫存編號 232-2282
  • 製造零件編號 5SY4102-5
个
HK$385.00
Littelfuse 0.08A Resettable Fuse, 240V dc
  • RS庫存編號 495-0707
  • 製造零件編號 LVR008NK
个（每托盘 5 ）
HK$4.34
Littelfuse 0.4A Resettable Fuse, 240V ac
  • RS庫存編號 869-7374
  • 製造零件編號 LVR040K-2
个 (以毎袋：10)
HK$5.529
Better World
Siemens SENTRON 5SY6 MCB, 4P, 32A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS庫存編號 212-8896
  • 製造零件編號 5SY6432-7
个
HK$1,767.30
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