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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.

    Circuit Breakers
    Circuit Breakers
    Earth & Lightning Protection
    Earth & Lightning Protection
    Fuse Holders & Accessories
    Fuse Holders & Accessories
    Fuses
    Fuses

    48664 Products showing for Fuses & Circuit Breakers

    1 of 999+
    RS PRO 5A F Glass Cartridge Fuse, 5 x 20mm
    • RS stock no. 541-3108
    Each (In a Pack of 10)
    R 3,283
    RS PRO 10A Red Blade Car Fuse, 32V dc
    • RS stock no. 563-744
    Each (In a Pack of 10)
    R 10,57
    RS PRO 1A F Glass Cartridge Fuse, 5 x 20mm
    • RS stock no. 563-380
    Each (In a Pack of 10)
    R 4,41
    RS PRO 10A Inline Fuse Holder for 5x20mm Fuse, 250V
    • RS stock no. 237-5259
    Each
    R 52,87
    RS PRO 5A Tan Blade Car Fuse, 32V dc
    • RS stock no. 177-8119
    Each (In a Pack of 50)
    R 4,245
    RS PRO PC Board Non Resettable Fuse, Radial 3.15A, 250V
    • RS stock no. 767-5153
    Each (In a Pack of 10)
    R 5,676
    RS PRO 5A Tan Blade Car Fuse, 32V dc
    • RS stock no. 563-778
    Each (In a Pack of 10)
    R 10,57
    RS PRO PC Board Non Resettable Fuse, Radial 2.5A, 250V ac
    • RS stock no. 767-5058
    Each (In a Pack of 10)
    R 5,765
    RS PRO 3A Violet Blade Car Fuse, 32V dc
    • RS stock no. 563-740
    Each (In a Pack of 10)
    R 5,22
    RS PRO PC Board Non Resettable Fuse, Radial 1A, 250V
    • RS stock no. 767-5140
    Each (In a Pack of 10)
    R 5,676
    RS PRO MCB, 2P, 16A Curve C, 240V AC, 240V DC, 6 kA Breaking Capacity
    • RS stock no. 265-0173
    Each
    R 428,68
    RS PRO PC Board Non Resettable Fuse, Radial 1A, 250V ac
    • RS stock no. 767-5049
    Each (In a Pack of 10)
    R 5,795
    RS PRO PC Board Non Resettable Fuse 2A, 250V ac
    • RS stock no. 911-3540
    Each (In a Pack of 10)
    R 5,825
    Eaton 3.15A T Glass Cartridge Fuse, 5 x 20mm
    • RS stock no. 537-1335
    • Mfr. Part No. S506-3.15-R
    Each (In a Pack of 10)
    R 4,387
    Eaton 5A F Ceramic Cartridge Fuse, 5 x 20mm
    • RS stock no. 537-1408
    Each (In a Pack of 10)
    R 4,405
    RS PRO 5A T Glass Cartridge Fuse, 5 x 20mm
    • RS stock no. 563-532
    Each (In a Pack of 10)
    R 6,595
    RS PRO 6.3A T Glass Cartridge Fuse, 5 x 20mm
    • RS stock no. 563-425
    Each (In a Pack of 10)
    R 6,762
    RS PRO PC Board Non Resettable Fuse, Radial 1.25A, 250V
    • RS stock no. 767-5143
    Each (In a Pack of 10)
    R 5,691
    Eaton 4A F Ceramic Cartridge Fuse, 5 x 20mm
    • RS stock no. 537-1048
    • Mfr. Part No. S501-4-R
    Each (In a Pack of 10)
    R 5,043
    RS PRO 6.3A F Glass Cartridge Fuse, 5 x 20mm
    • RS stock no. 563-706
    Each (In a Pack of 10)
    R 1,549
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