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

36 的 999+
Schneider Electric, ComPacT New Generation MCCB 3P 250A, Breaking Capacity 65 kA, DIN Rail Mount
  • RS庫存編號 245-119
  • 製造零件編號 NJGF36250TW
个
HK$13,569.67
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 20A Curve B, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS庫存編號 791-3225
  • 製造零件編號 A9F53320
个
HK$866.80
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 40A Curve B, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS庫存編號 791-3174
  • 製造零件編號 A9F53140
个
HK$210.00
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 16A Curve C, 440V AC, 220 → 250V DC, 10 kA Breaking Capacity
  • RS庫存編號 791-3436
  • 製造零件編號 A9F54416
个
HK$1,918.50
Eaton xEffect FAZ MCB, 2P, 6A Curve C, 240 → 415V AC, 60V DC, 10 kA Breaking Capacity
  • RS庫存編號 847-3409
  • 製造零件編號 278754 FAZ-C6/2
个
HK$631.70
Eaton xPole MCB, 2P, 6A Curve C, 48V DC, 10 kA Breaking Capacity
  • RS庫存編號 864-4355
  • 製造零件編號 242399 PLSM-C6/2-MW
个
HK$564.80
Eaton xEffect MCB, 2P, 2A Curve C, 125V DC, 10 kA Breaking Capacity
  • RS庫存編號 922-7197
  • 製造零件編號 279134 FAZ-C2/2-DC
个
HK$1,295.40
ABB System Pro M Compact S200 MCB, 2P, 20A Curve B, 440V AC, 125V DC, 20 kA Breaking Capacity
  • RS庫存編號 488-6886
  • 製造零件編號 2CDS252001R0205 - S202B20
个
HK$463.50
Better World
ABB Compact Home SH200 MCB, 3P, 32A Curve B, 440V AC, 6 kA Breaking Capacity
  • RS庫存編號 539-8318
  • 製造零件編號 2CDS213001R0325 SH203-B32
个
HK$511.30
Better World
ABB System Pro M Compact S200 MCB, 2P, 16A Curve B, 400V AC, 110V DC, 6 kA Breaking Capacity
  • RS庫存編號 746-7560
  • 製造零件編號 2CDS252001R0165 S202-B16
个
HK$400.50
Better World
Siemens Sentron 5SY4 MCB, 1P, 1A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS庫存編號 622-0008
  • 製造零件編號 5SY4101-7
个
HK$410.40
Better World
ABB System Pro M Compact S200 MCB, 2P, 3A Curve C, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS庫存編號 746-7693
  • 製造零件編號 2CDS252001R0034 S202-C3
个
HK$511.10
Better World
ABB System Pro M Compact S200 MCB, 2P, 2A Curve K, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS庫存編號 746-7970
  • 製造零件編號 2CDS252001R0277 S202-K2
个
HK$748.00
Better World
ABB System Pro M Compact S200 MCB, 2P, 16A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 746-7716
  • 製造零件編號 2CDS252001R0164 S202-C16
个
HK$537.80
Eaton xEffect MCB, 2P, 4A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 769-4661
  • 製造零件編號 239099 FAZ6-C4/2
个
HK$589.30
Better World
Schneider Electric Acti 9 C60H-DC MCB, 2P, 6A Curve C, 500V DC
  • RS庫存編號 772-1515
  • 製造零件編號 A9N61526
个
HK$1,497.30
Better World
Siemens Sentron 5SY4 MCB, 3P, 63A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 772-1391
  • 製造零件編號 5SY4363-8
个
HK$1,479.90
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 10A Curve B, 440V AC, 250V DC, 10 kA Breaking Capacity
  • RS庫存編號 776-2174
  • 製造零件編號 A9F06410
个
HK$1,043.70
Better World
Schneider Electric Acti 9 iC60H MCB, 16A Curve C, 230V AC, 72V DC, 10 kA Breaking Capacity
  • RS庫存編號 776-2455
  • 製造零件編號 A9F07616
个
HK$642.80
Eaton MCB, 1+N, 2A Curve C
  • RS庫存編號 230-1105
  • 製造零件編號 109125 PLGC4-C2/1N
个
HK$132.40
每頁顯示的結果
1
36
2365

相关链接