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.

47282 產品顯示為 Fuses & Circuit Breakers

26 999+
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  • 製造零件編號 M9F12202
HK$1,079.00
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HK$161.10
Better World
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HK$848.70
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个 (以每袋裝提供)
HK$4.52
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1 包 10 套
HK$5,991.10
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  • 製造零件編號 0001.2506
个 (以毎袋:10)
HK$2.99
  • RS庫存編號 517-6613P
  • 製造零件編號 RXEF030
个 (以每袋裝提供)
HK$2.40
  • RS庫存編號 212-2130
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HK$288.64
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HK$183.70
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HK$530.10
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HK$37.80
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HK$920.60
  • RS庫存編號 228-737
  • 製造零件編號 32NNSBS 32A 550V FUSEHOLDER 10 1.5KG
1 包 10 套
HK$2,070.20
Better World
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HK$3,021.70
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个 (以毎盒:3)
HK$1,128.633
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  • 製造零件編號 C14G1
个 (以每盒裝提供)
HK$13.08
  • RS庫存編號 777-7489
  • 製造零件編號 0034.1519
个(每托盘 10 )
HK$2.67
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个(每托盘 10 )
HK$2.66
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个(每托盘 10 )
HK$0.82
Better World
  • RS庫存編號 219-8668
  • 製造零件編號 NSYRBL216146M
个(每托盘 10 )
HK$365.582
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