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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.

    44552 Products showing for Fuses & Circuit Breakers

    1 of 999+
    • RS Stock No. 783-3292
    • Mfr. Part No. 70-007-65/1A
    Each (In a Pack of 10)
    HK$6.46
    Better World
    • RS Stock No. 521-4945
    • Mfr. Part No. 5SY6103-7
    Each
    HK$152.00
    • RS Stock No. 412-986
    • Mfr. Part No. TDC180-1A
    Each (In a Pack of 10)
    HK$11.63
    • RS Stock No. 171-6779
    • Mfr. Part No. S505H-V-3-15-R
    Each (In a Pack of 5)
    HK$7.18
    • RS Stock No. 333-237
    • Mfr. Part No. 201-1A
    Each
    HK$252.70
    • RS Stock No. 500-6211
    • Mfr. Part No. 4301.1401
    Each
    HK$39.20
    • RS Stock No. 521-2905
    Each (In a Pack of 5)
    HK$38.706
    • RS Stock No. 521-2955
    Each (In a Pack of 5)
    HK$55.834
    • RS Stock No. 848-3034
    • Mfr. Part No. GMA-500-R
    Each
    HK$5.90
    Better World
    • RS Stock No. 772-1385
    • Mfr. Part No. 5SY4332-8
    Each
    HK$1,039.10
    • RS Stock No. 204-7483
    • Mfr. Part No. Q82 A 140 05 100
    Each
    HK$47.50
    Better World
    • RS Stock No. 521-4917
    • Mfr. Part No. 5SY6101-7
    Each
    HK$225.00
    • RS Stock No. 216-5351
    Each
    HK$154.10
    • RS Stock No. 181-8582
    • Mfr. Part No. C14M40
    Each (In a Box of 10)
    HK$16.94
    • RS Stock No. 563-435
    Each (In a Pack of 10)
    HK$3.215
    • RS Stock No. 182-1837
    • Mfr. Part No. RS20HGN
    Each
    HK$293.40
    • RS Stock No. 144-1830
    • Mfr. Part No. 8020.5026.G
    Each (In a Bag of 10)
    HK$10.82
    • RS Stock No. 246-2367
    • Mfr. Part No. 2CCG001675R0001
    Each
    HK$1,867.45
    • RS Stock No. 789-7801
    • Mfr. Part No. 0001.2511
    Each (In a Bag of 10)
    HK$4.24
    • RS Stock No. 333-265
    • Mfr. Part No. 201-5A
    Each
    HK$283.70
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