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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.

    33019 Products showing for Fuses & Circuit Breakers

    1 of 999+
    • RS Stock No. 782-0860
    • Mfr. Part No. W23-X1A1G-15
    Each
    $78.67
    • RS Stock No. 290-1258
    • Mfr. Part No. 0402174
    Each
    $50.60
    Better World
    • RS Stock No. 400-1984
    • Mfr. Part No. GV1G09
    Each
    $75.88
    Better World
    • RS Stock No. 806-7228
    • Mfr. Part No. A9XPH112
    Each
    $44.36
    • RS Stock No. 517-6685
    • Mfr. Part No. RXEF110
    Each (In a Pack of 10)
    $0.75
    • RS Stock No. 282-2969
    • Mfr. Part No. MX9R3110
    Each
    $53.82
    • RS Stock No. 782-0864
    • Mfr. Part No. W23-X1A1G-20
    Each
    $53.08
    • RS Stock No. 421-722
    • Mfr. Part No. 20-000-13/100E1
    Each (In a Pack of 3)
    $19.59
    • RS Stock No. 275-3341
    • Mfr. Part No. AdaBV140-N
    Each
    $9.94
    • RS Stock No. 207-2718
    • Mfr. Part No. 2906031
    Each
    $219.33
    • RS Stock No. 156-8715
    • Mfr. Part No. DD200M250
    Each
    $87.76
    • RS Stock No. 174-0633
    • Mfr. Part No. 04980921GXM5
    1 Pack of 1
    $13.38
    • RS Stock No. 178-8044
    • Mfr. Part No. 106133 PKZ0-XRH
    Each
    $208.26
    • RS Stock No. 782-7975
    • Mfr. Part No. W54-XB1A4A10-15
    Each
    $9.83
    • RS Stock No. 779-9996
    • Mfr. Part No. OFAF1H200 1SCA022627R4490
    Each
    $27.94
    • RS Stock No. 314-4844
    • Mfr. Part No. 50-179-06/30A
    Each (In a Pack of 5)
    $22.918
    • RS Stock No. 782-0886
    • Mfr. Part No. W23-X1A1G-5
    Each
    $58.83
    • RS Stock No. 247-4223
    • Mfr. Part No. 50-124-06/25A
    Each
    $22.55
    • RS Stock No. 284-5849
    • Mfr. Part No. 4400.0001
    Each
    $17.40
    • RS Stock No. 282-2949
    • Mfr. Part No. MX9MC310
    Each
    $44.44
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