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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.

    48963 Products showing for Fuses & Circuit Breakers

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    • RS Stock No. 893-8546
    Each
    £52.82
    • RS Stock No. 466-0527
    • Mfr. Part No. 13441
    Each
    £80.20
    • RS Stock No. 242-1061
    Each (In a Pack of 5)
    £5.694
    • RS Stock No. 174-7957
    Each (In a Box of 500)
    £0.19
    • RS Stock No. 150-063
    • Mfr. Part No. X201.285.01 3/8"106CLEARCOVER+NUT
    Each
    £3.38
    • RS Stock No. 219-9556
    • Mfr. Part No. 00940957XXN
    Each
    £43.26
    Better World
    • RS Stock No. 239-4984
    Each (In a Pack of 10)
    £6.915
    • RS Stock No. 700-0818
    • Mfr. Part No. EN20
    1 Pack of 6
    £24.27
    • RS Stock No. 501-871
    Each
    £9.37
    • RS Stock No. 354-408
    Each (In a Pack of 10)
    £1.503
    • RS Stock No. 408-426
    • Mfr. Part No. 11327
    Each (In a Pack of 5)
    £1.584
    • RS Stock No. 703-8522
    • Mfr. Part No. C10NL
    1 Pack of 10
    £21.11
    • RS Stock No. 181-8502
    • Mfr. Part No. CD100
    Each (In a Box of 10)
    £13.169
    • RS Stock No. 263-9091
    • Mfr. Part No. 2223Drill
    Each
    £37.23
    • RS Stock No. 390-2448
    1 Pack of 10
    £16.87
    • RS Stock No. 413-838
    Each (In a Pack of 10)
    £4.246
    • RS Stock No. 153-3459
    • Mfr. Part No. EUBLMC16C30A
    Each
    £55.51
    • RS Stock No. 182-1829
    • Mfr. Part No. 60KR85
    Each
    £7.30
    • RS Stock No. 242-1099
    Each
    £28.44
    • RS Stock No. 408-448
    • Mfr. Part No. 12932
    Each (In a Pack of 5)
    £2.474
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