Fuses | Circuit Breakers | Circuit Safety | RS
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    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.

    44737 產品顯示為 Fuses & Circuit Breakers

    14 999+
    • RS庫存編號 849-6471
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    HK$58.70
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    Better World
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    个(每托盘 10 )
    HK$3.27
    Better World
    • RS庫存編號 746-7772
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    HK$479.10
    • RS庫存編號 173-9780
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    个 (以毎袋:100)
    HK$2.752
    • RS庫存編號 867-4365
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    个(每托盘 10 )
    HK$30.92
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    个(每托盘 100 )
    HK$17.754
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    HK$176.80
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    个(每托盘 10 )
    HK$8.42
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    个(每托盘 10 )
    HK$93.45
    • RS庫存編號 157-034
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    个(每托盘 10 )
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    • RS庫存編號 418-9494
    • 製造零件編號 70-059-61/0.25A
    个(每托盘 10 )
    HK$6.77
    • RS庫存編號 715-8982
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    • RS庫存編號 783-3254
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    个(每托盘 10 )
    HK$4.64
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