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

25 的 999+
Better World
Schneider Electric Acti9 iIG40K RCCB, 25A, 1+N Pole, 30mA, Type AC, 220 → 240V ac
  • RS庫存編號 238-3468
  • 製造零件編號 A9R69625
个
HK$1,247.56
ABB F200 RCCB, 40A, 4 Pole, 30mA, Type A, 400V ac
  • RS庫存編號 231-9901
  • 製造零件編號 2CSF204101R1400 F204 A-40/0,03
个
HK$1,587.10
Better World
Schneider Electric Acti9 iIDK RCCB, 25A, 2 Pole, 30mA, Type AC, 220 → 240V ac
  • RS庫存編號 238-3454
  • 製造零件編號 A9R55225
个
HK$898.10
ABB RCCB, 63A, 4 Pole, 30mA, Type A, 400V ac
  • RS庫存編號 246-2241
  • 製造零件編號 2CCF544110E0631 F404A-LF63/0.03
个
HK$9,359.80
Better World
Schneider Electric iID RCCB, 25A, 2 Pole, 300mA
  • RS庫存編號 734-9337
  • 製造零件編號 A9R14225
个
HK$1,712.52
Better World
Schneider Electric iC60 RCD, 63A, 300mA
  • RS庫存編號 776-2913
  • 製造零件編號 A9V14363
个
HK$4,185.51
Better World
Schneider Electric iID RCCB, 25A, 4 Pole, 30mA
  • RS庫存編號 776-3698
  • 製造零件編號 A9R31425
个
HK$3,273.44
Schneider Electric RCBO, 10A Current Rating, 1P Poles, 30mA Trip Sensitivity, Acti 9 Range
  • RS庫存編號 230-6641
  • 製造零件編號 A9D32610
个
HK$667.42
ABB RCBO, 50A Current Rating, 1P Poles, Type C
  • RS庫存編號 237-5236
  • 製造零件編號 2CSR275051R2504
个
HK$1,567.85
ABB RCBO, 50A Current Rating, 1P Poles, Type C
  • RS庫存編號 237-5242
  • 製造零件編號 2CSR275051R3504
个
HK$1,567.85
Better World
Schneider Electric RCBO, 20A Current Rating, 3P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS庫存編號 238-3287
  • 製造零件編號 A9DK1720
个
HK$3,323.60
Better World
Schneider Electric RCBO, 40A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS庫存編號 238-3346
  • 製造零件編號 A9DV6640
个
HK$3,421.94
Contactum RCBO, 50A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type B, CCPBR Range
  • RS庫存編號 240-6390
  • 製造零件編號 CCPBR0650AB
个
HK$237.40
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, Sentron Range
  • RS庫存編號 243-6166
  • 製造零件編號 5SU1324-7FP10
个
HK$1,725.50
Better World
Siemens RCBO, 6A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS庫存編號 243-6202
  • 製造零件編號 5SU1336-6FP06
个
HK$1,992.80
Eaton xEffect RCCB, 63A, 4 Pole, 100mA, Type B, 240V ac
  • RS庫存編號 248-947
  • 製造零件編號 187805 FRCMM-63/4/01-B
个
HK$11,224.70
RS PRO 25A Bolted Tag Fuse, A2, 250 V dc, 690V ac, 73mm
  • RS庫存編號 221-3711
毎包：5 个
HK$326.70
Eaton xEffect - FRCmM RCCB, 80A, 2 Pole, 30mA, Type A, 110V
  • RS庫存編號 127-429
  • 製造零件編號 180610 FRCMM-80/2/003-A-110
个
HK$3,584.30
Schneider Electric A9R RCCB, 100A, 2 Pole, 240V
  • RS庫存編號 245-094
  • 製造零件編號 A9R24291
个
HK$3,926.80
Eaton PXF RCCB, 40A, 4 Pole, 30mA, Type A, 230/400V ac
  • RS庫存編號 248-737
  • 製造零件編號 102885 PXF-40/4/003-KV/A
个
HK$2,864.62
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