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

2241 的 999+
暫時缺貨
SENTRON Wire Connector for use with 3VA55, 3VA65 Series
  • RS庫存編號 263-978
  • 製造零件編號 3VA9574-0JB23
整套：1 个
HK$2,090.80
暫時缺貨
Legrand 40A M Ceramic Cartridge Fuse, 22.2 x 58mm
  • RS庫存編號 266-3161
  • 製造零件編號 0 151 40
毎盒：10 个
HK$2,976.90
有庫存
Siemens SENTRON Door Feedthrough Accessory for use with 3VL4, 3VL5, 3VL6 For Actuating Shafts 8x 8 mm
  • RS庫存編號 266-479
  • 製造零件編號 8UC7262-8BD26
个
HK$1,665.80
暫時缺貨
Siemens SENTRON Cable for use with Circuit Breaker 3WL10 / 3VA27
  • RS庫存編號 265-577
  • 製造零件編號 3VW9011-0AT75
个
HK$596.80
有庫存
Wickmann 3.15A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 174-0655
  • 製造零件編號 02163.15HXP
个（每托盘 5 ）
HK$11.76
有庫存
Schurter 1.25A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 167-7881
  • 製造零件編號 0001.1005
个（每托盘 10 ）
HK$4.22
暫時缺貨
10A Cartridge Fuse, 51 x 565mm
  • RS庫存編號 253-512
  • 製造零件編號 24FDIHA10
1 包 3 套
HK$22,219.20
暫時缺貨
Siemens SENTRON Protective Cap for use with N Miniature Circuit Breaker
  • RS庫存編號 626-984
  • 製造零件編號 5ST2116
1 包 10 套
HK$53.10
有庫存
Schurter SMD Non Resettable Fuse 1.5A, 125V ac/dc
  • RS庫存編號 733-4870P
  • 製造零件編號 3404.0115.22
个 (以每卷裝提供)
HK$3.86
暫時缺貨
Siemens ALPHA Assembly Kit for use with 3VA1 Molded Case Circuit Breakers
  • RS庫存編號 629-376
  • 製造零件編號 8GK6735-6KK23
个
HK$3,131.19
暫時缺貨
Better World
Schneider Electric Acti 9 Cable for use with Acti 9, Acti 9 Smartlink Circuit Breaker
  • RS庫存編號 125-1393
  • 製造零件編號 A9XCAS06
个
HK$393.50
有庫存
Siemens SENTRON Connecting Terminals for use with Pin Busbars
  • RS庫存編號 202-7099
  • 製造零件編號 5ST3770-0HG
个（每托盘 10 ）
HK$99.72
暫時缺貨
Siemens ALPHA Assembly Kit for use with 3VA1 Molded Case Circuit Breakers
  • RS庫存編號 629-394
  • 製造零件編號 8GK4734-2KK12
个
HK$1,216.64
暫時缺貨
Eaton 3.15A Cartridge Fuse, 359 x 25.4mm
  • RS庫存編號 254-745
  • 製造零件編號 24ABGN223.15
个
HK$2,472.20
新產品 - 立即預訂
Fuse - Mini 32V Tin plated 10A 3000 pc
  • RS庫存編號 565-378
  • 製造零件編號 0297010.WXT
个
HK$138.09
新產品 - 立即預訂
FUSE - BF1 30A 58V BULK 500 PC
  • RS庫存編號 522-958
  • 製造零件編號 142.5631.5302
1 包 500 套
HK$32,568.94
有庫存
SIBA 225A White Automotive Car Fuse, 80V dc
  • RS庫存編號 161-1825
  • 製造零件編號 9005805.225
个 (以毎盒：20)
HK$45.103
新產品 - 立即預訂
Fuse - Strip 60 w/ Housing 48VDC, 40A
  • RS庫存編號 522-965
  • 製造零件編號 157.5701.5401
毎包：25 个
HK$3,734.69
新產品 - 立即預訂
FUSE 250V FA 3AB ROHS 30A
  • RS庫存編號 552-989
  • 製造零件編號 0314030.MXP
毎包：100 个
HK$891.40
有庫存
Littelfuse SMD Non Resettable Fuse 3A, 32V
  • RS庫存編號 738-3264P
  • 製造零件編號 0468003.NR
个 (以每卷裝提供)
HK$6.53
1
2241
2364
每頁顯示的結果

相关链接