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

4 的 999+
Eaton RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBm6 Range
  • RS庫存編號 123-657
  • 製造零件編號 170792 FRBM6-C40/2/003-A
个
HK$1,522.37
Siemens RCBO, 40A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type A, SENTRON Range
  • RS庫存編號 211-9577
  • 製造零件編號 5SM2622-8
个
HK$1,909.50
Schurter Non-Resettable Wire Ended Fuse 2A, 250V ac
  • RS庫存編號 703-2629
  • 製造零件編號 8020.0517.PT
个（每托盘 10 ）
HK$3.37
Better World
ABB SN201 MCB, 2P, 6A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS庫存編號 231-9972
  • 製造零件編號 2CSS255101R0064 SN201-C6 -
毎盒：1 个
HK$354.90
Eaton RCBO, 40A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type A, Type B, FRBm6 Range
  • RS庫存編號 123-685
  • 製造零件編號 170850 FRBM6-B40/2/03-A
个
HK$1,560.43
Schurter 16A Panel Mount Fuse Holder for 5 x 20mm Fuse, 1P, 250V ac
  • RS庫存編號 384-055
  • 製造零件編號 3101.0020
个（每托盘 5 ）
HK$31.32
Mersen 6A Ceramic Cartridge Fuse, 10 x 38mm
  • RS庫存編號 188-7044
  • 製造零件編號 F222208
个（每托盘 10 ）
HK$14.27
Sato Parts 10A PCB Mount Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS庫存編號 372-1047
  • 製造零件編號 F-100
个（每托盘 5 ）
HK$13.84
Legrand 20A F Ceramic Cartridge Fuse, 8.5 x 32mm
  • RS庫存編號 293-8222
  • 製造零件編號 0 123 20
个（每托盘 10 ）
HK$15.22
Eaton RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type B, FRBm6 Range
  • RS庫存編號 123-629
  • 製造零件編號 170718 FRBM6-B40/2/003-LIA
个
HK$1,665.09
Eaton RCBO, 40A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type A, Type C, FRBm6 Range
  • RS庫存編號 123-272
  • 製造零件編號 170732 FRBM6-C40/2/03-A
个
HK$1,550.91
Eaton RCBO, 40A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type C, FRBm6 Range
  • RS庫存編號 123-338
  • 製造零件編號 170826 FRBM6-C40/2/01-A
个
HK$1,560.43
Eaton RCBO, 40A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type C, FRBm6 Range
  • RS庫存編號 123-676
  • 製造零件編號 170836 FRBM6-C40/2/01-LIA
个
HK$1,703.15
MK Electric Earthing Lead Adapter Brass
  • RS庫存編號 491-822
  • 製造零件編號 9933
个
HK$124.00
Socomec 4A F Cartridge Fuse, 10 x 38mm
  • RS庫存編號 223-2789
  • 製造零件編號 60130004
个（每托盘 10 ）
HK$10.02
Littelfuse 1A F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 541-4375
  • 製造零件編號 0217001.MXP
个（每托盘 10 ）
HK$2.94
RS PRO 5A F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 610-9721
个（每托盘 10 ）
HK$2.80
Schneider Electric RCBO, 16A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS庫存編號 222-8512
  • 製造零件編號 SEE116B03
个
HK$605.30
RS PRO 250mA F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 563-469
个（每托盘 10 ）
HK$2.22
Limitor Thermal Fuse +80°C 2.5 A, 250V ac
  • RS庫存編號 176-9148
  • 製造零件編號 P82 80 05100
个
HK$50.60
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