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

2240 的 999+
暫時缺貨
Wickmann 500mA T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 174-0241
  • 製造零件編號 0477.500MXP
毎盒：1000 个
HK$10,808.80
暫時缺貨
Wickmann 10A T Glass Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 174-0244
  • 製造零件編號 0313010.MX250P
毎盒：1000 个
HK$5,529.40
有庫存
Bourns 20A F Ceramic Cartridge Fuse, 10 x 38mm
  • RS庫存編號 254-4094
  • 製造零件編號 PF-EC1-20
个
HK$89.80
有庫存
Bourns SMD Non Resettable Fuse 7A, 24V dc
  • RS庫存編號 692-5071P
  • 製造零件編號 SF-1206S700-2
个 (以每卷裝提供)
HK$3.08
暫時缺貨
Wickmann 15A F Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 174-0251
  • 製造零件編號 0314015.MXP
毎盒：1000 个
HK$3,677.50
暫時缺貨
Eaton Eaton Distribution Parts Sealing Cap for use with Terminal Shroud
  • RS庫存編號 259-280
  • 製造零件編號 285385 Z-RC/AK-2TE
1 包 10 套
HK$112.90
有庫存
Legrand 2A M Ceramic Cartridge Fuse, 8 x 32mm
  • RS庫存編號 266-3078
  • 製造零件編號 0 120 02
毎盒：10 个
HK$268.47
暫時缺貨
Siemens 16A Cartridge Fuse, 22.2 x 58mm
  • RS庫存編號 627-020
  • 製造零件編號 3NW8205-1
1 包 10 套
HK$958.70
有庫存
Mersen 10A Quick Acting Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 630-899
  • 製造零件編號 X090525Q
毎盒：10 个
HK$64.42
暫時缺貨
SENTRON for use with 3VA53/54, 3VA63/64 Series
  • RS庫存編號 263-773
  • 製造零件編號 3VA9478-0DK72
个
HK$4,112.20
暫時缺貨
Mersen 5A Time Lag Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 630-844
  • 製造零件編號 Z090550Q
毎盒：10 个
HK$61.49
有庫存
Bourns 30A F Ceramic Cartridge Fuse, 10 x 38mm
  • RS庫存編號 254-4098
  • 製造零件編號 PF-EC1-30
个
HK$137.10
暫時缺貨
Siemens 12A Cartridge Fuse, 10 x 38mm
  • RS庫存編號 627-131
  • 製造零件編號 3NC1012-0MK
1 包 20 套
HK$1,840.70
有庫存
Mersen 800mA Time Lag Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 630-838
  • 製造零件編號 Q090542Q
毎盒：10 个
HK$61.49
暫時缺貨
Mersen 100mA Quick Acting Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 630-848
  • 製造零件編號 A090505Q
毎盒：10 个
HK$90.82
暫時缺貨
SENTRON Shunt Trip Voltage Release for use with 3VA4/5/6 Series
  • RS庫存編號 263-750
  • 製造零件編號 3VA9978-0BL31
个
HK$859.80
有庫存
Mersen 6A Glass Melamine Cartridge Fuse, 10 x 38mm
  • RS庫存編號 136-0619
  • 製造零件編號 HP10M6
个
HK$128.43
暫時缺貨
Siemens SENTRON Rotary Operator for use with Circuit Breaker 3VA27
  • RS庫存編號 266-545
  • 製造零件編號 3VW9727-0GK00
个
HK$2,034.10
有庫存
Siemens SENTRON Door Feedthrough Accessory for use with 3KE42, 3KE43, 3KE44, 3KE45, Operating shafts 12 x 12 mm
  • RS庫存編號 266-671
  • 製造零件編號 8UC7324-3BB44
个
HK$1,607.20
暫時缺貨
Siemens SENTRON Signaling Switch for use with Circuit Breaker 3VA27
  • RS庫存編號 266-472
  • 製造零件編號 3VW9727-0AB43
个
HK$714.00
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