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

47265 產品顯示為 Fuses & Circuit Breakers

2 的 999+
有庫存
Eaton 1A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 537-1442
  • 製造零件編號 S501-1-R
个（每托盘 10 ）
HK$4.28
暫時缺貨
Better World
Schneider Electric Acti 9 C60-PV MCB, 2P, 25A Curve B, 800V DC, 3 kA Breaking Capacity
  • RS庫存編號 776-3626
  • 製造零件編號 A9N61660
个
HK$2,939.00
有庫存
Better World
ABB System Pro M Compact S200 MCB, 2P, 6A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS庫存編號 746-7854
  • 製造零件編號 2CDS252001R0061 S202-D6
个
HK$537.30
有庫存
RS PRO SMD Non-Resettable Surface Mount Fuse 5A, 63V
  • RS庫存編號 252-2125
个（每托盘 50 ）
HK$1.394
有庫存
Better World
Siemens SENTRON 5SV6016 Fire Safety Circuit Breaker, 2P, 16A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS庫存編號 189-3186
  • 製造零件編號 5SV6016-7KK16
个
HK$1,366.70
有庫存
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 63A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS庫存編號 791-3543
  • 製造零件編號 A9F55263
个
HK$869.90
有庫存
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
有庫存
SIBA 10A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 783-3330
  • 製造零件編號 70-007-65/10A
个（每托盘 10 ）
HK$4.87
有庫存
RS PRO 3A T Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 911-3405
个（每托盘 10 ）
HK$3.39
有庫存
Better World
ABB System Pro M Compact S200M MCB, 2P, 32A Curve D
  • RS庫存編號 231-9727
  • 製造零件編號 2CDS272001R0321 S202M D 32A - 15 KA
毎盒：1 个
HK$455.30
正在逐步停售
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
暫時缺貨
Better World
Schneider Electric MCB
  • RS庫存編號 776-3644
  • 製造零件編號 A9N61690
个
HK$1,242.57
有庫存
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 20A Current Rating
  • RS庫存編號 210-2071
  • 製造零件編號 3120-N521-H7T1-W01D-20A
个
HK$383.70
有庫存
Eaton 25A Slow-Blow Cartridge Fuse, 14 x 51mm
  • RS庫存編號 228-676
  • 製造零件編號 C14M25 CYLINDRICAL FUSE 14 x 51 25A AM 690V AC
1 包 10 套
HK$220.90
有庫存
Schurter 0853 Series Thermoplastic Fuse Cover for 5 x 20mm Fuse
  • RS庫存編號 876-7880
  • 製造零件編號 0853.9561
个（每托盘 100 ）
HK$3.444
有庫存
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
有庫存
Eaton RCBO, 16A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS庫存編號 123-284
  • 製造零件編號 170740 FRBMM-C16/3/003-A
个
HK$1,627.03
有庫存
RS PRO 16A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 209-9311
个（每托盘 10 ）
HK$10.21
有庫存
Eaton 20A British Standard Fuse, A1, 550V ac, 42.5mm
  • RS庫存編號 139-899
  • 製造零件編號 NITD20M32
个（每托盘 5 ）
HK$74.14
有庫存
ETA Thermal Circuit Breaker - 2-5700 Single Pole 250V Voltage Rating Panel Mount, 20A Current Rating
  • RS庫存編號 405-9179
  • 製造零件編號 2-5700-IG1-P10-DD-000040-20A
个
HK$257.20
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