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.

    48286 Products showing for Fuses & Circuit Breakers

    6 of 999+
    • RS Stock No. 769-0133
    • Mfr. Part No. 021702.5TXP
    Each (In a Pack of 25)
    Kr. 4,28
    • RS Stock No. 501-871
    Each
    Kr. 137,17
    • RS Stock No. 563-738
    Each (In a Pack of 10)
    Kr. 4,279
    • RS Stock No. 517-6663
    • Mfr. Part No. RXEF075
    Each (In a Pack of 10)
    Kr. 5,292
    • RS Stock No. 777-7505
    • Mfr. Part No. 0034.3124
    Each (In a Pack of 10)
    Kr. 4,759
    • RS Stock No. 783-3201
    • Mfr. Part No. 70-007-33/0.1A
    Each (In a Pack of 10)
    Kr. 5,349
    Better World
    • RS Stock No. 231-9656
    • Mfr. Part No. 2CDS212001R0164 SH202-C 16
    1 Box of 1
    Kr. 661,00
    • RS Stock No. 541-3322
    • Mfr. Part No. 0251010.HAT1L
    Each (In a Pack of 10)
    Kr. 12,515
    • RS Stock No. 310-9841
    • Mfr. Part No. HTC-30M
    Each (In a Pack of 5)
    Kr. 7,322
    • RS Stock No. 174-0663
    • Mfr. Part No. 0298060.ZXB
    1 Pack of 1
    Kr. 91,86
    • RS Stock No. 267-3436
    • Mfr. Part No. 70-010-04/5A
    Each (In a Pack of 5)
    Kr. 52,966
    Better World
    • RS Stock No. 211-2355
    • Mfr. Part No. M9F22103
    Each
    Kr. 253,97
    • RS Stock No. 542-1250
    • Mfr. Part No. 021806.3MXP
    Each (In a Pack of 10)
    Kr. 11,855
    Better World
    • RS Stock No. 482-893
    • Mfr. Part No. DF102
    Each
    Kr. 315,17
    Better World
    • RS Stock No. 209-7513
    • Mfr. Part No. 5SY4213-7
    Each
    Kr. 1 025,02
    • RS Stock No. 769-3214
    • Mfr. Part No. SR-5-2-5A-BK
    Each (In a Pack of 10)
    Kr. 6,361
    • RS Stock No. 272-0701
    • Mfr. Part No. 172269 A-PKZ0(24V60HZ)
    Each
    Kr. 529,67
    • RS Stock No. 787-4407
    • Mfr. Part No. 0298080.ZXEH
    Each
    Kr. 49,68
    • RS Stock No. 893-0612
    • Mfr. Part No. 696310001002
    Each (In a Pack of 5)
    Kr. 17,974
    • RS Stock No. 203-2166
    • Mfr. Part No. 3NC2280
    Each (In a Pack of 5)
    Kr. 226,512
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