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.

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

    48286 Products showing for Fuses & Circuit Breakers

    9 of 999+
    Mersen 32A Ceramic Cartridge Fuse, 10 x 38mm
    • RS Stock No. 304-1048
    • Mfr. Part No. A214107
    Each (In a Pack of 10)
    Kr. 21,198
    Schneider Electric Acti 9 18 MCB, 4P, 16A Curve C, 500V AC, 500V DC, 20 kA Breaking Capacity
    • RS Stock No. 247-1648
    • Mfr. Part No. 18650
    Each
    Kr. 3 849,15
    Mersen 20A Slow-Blow Ceramic Cartridge Fuse, 10 x 38mm
    • RS Stock No. 247-2916
    • Mfr. Part No. V216655
    1 Box of 10
    Kr. 418,85
    Littelfuse 6.3A T Ceramic Cartridge Fuse, 5 x 20mm
    • RS Stock No. 541-4713
    • Mfr. Part No. 021506.3MXP
    Each (In a Pack of 10)
    Kr. 18,233
    Eaton 5A T Ceramic Cartridge Fuse, 5 x 20mm
    • RS Stock No. 537-1492
    • Mfr. Part No. S505-5-R
    Each (In a Pack of 10)
    Kr. 1,956
    Siemens 16A Centred Tag Fuse, NH1, 500V ac
    • RS Stock No. 203-2143
    • Mfr. Part No. 3NA3105
    Each (In a Pack of 3)
    Kr. 169,313
    Better World
    Schneider Electric Multi 9 C60N MCB, 1P, 2A Curve C, 240 V, 415 V AC, 72V DC, 10 kA Breaking Capacity
    • RS Stock No. 214-2056
    • Mfr. Part No. M9F11102
    Each
    Kr. 387,24
    Littelfuse 12A T Ceramic Cartridge Fuse, 5 x 20mm
    • RS Stock No. 738-2832
    • Mfr. Part No. 0215012.TXP
    Each (In a Pack of 10)
    Kr. 18,979
    Eaton xEffect MCB, 1+N, 10A Curve C, 240V AC, 48V DC, 10 kA Breaking Capacity
    • RS Stock No. 922-7087
    • Mfr. Part No. 278670 FAZ-C10/1N
    Each
    Kr. 675,42
    Better World
    Schneider Electric Easy9 Switch Disconnector
    • RS Stock No. 850-8571
    • Mfr. Part No. EZ9S16263
    Each
    Kr. 82,25
    Littelfuse 1.6A F Ceramic Cartridge Fuse, 5 x 20mm
    • RS Stock No. 725-8041
    • Mfr. Part No. 021601.6MXP
    Each (In a Bag of 10)
    Kr. 16,407
    Better World
    Schneider Electric Acti 9 iC60L MCB, 2P, 32A Curve B, 15 kA Breaking Capacity
    • RS Stock No. 219-9255
    • Mfr. Part No. A9F93232
    Each
    Kr. 1 630,20
    Mersen 25A FF Cartridge Fuse, 10 x 38mm
    • RS Stock No. 136-0521
    • Mfr. Part No. F1014581 / FR10GR69V25
    Each (In a Box of 10)
    Kr. 108,656
    Bourns SMD Non Resettable Fuse 2A, 63V dc
    • RS Stock No. 692-5053
    • Mfr. Part No. SF-1206S200-2
    Each (In a Pack of 10)
    Kr. 4,05
    Mersen 100A NH Fuse, NH00, 690V
    • RS Stock No. 768-3649
    • Mfr. Part No. G227867
    Each
    Kr. 246,53
    Mersen 2A Slow-Blow Ceramic Cartridge Fuse, 10 x 38mm
    • RS Stock No. 247-2897
    • Mfr. Part No. S302788
    1 Box of 10
    Kr. 964,35
    Mersen 4A Slow-Blow Ceramic Cartridge Fuse, 10 x 38mm
    • RS Stock No. 247-2910
    • Mfr. Part No. T302789
    1 Box of 10
    Kr. 964,35
    Eaton xEffect MCB, 3P, 10A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
    • RS Stock No. 769-4740
    • Mfr. Part No. 168080 FAZ6-D10/3
    Each
    Kr. 1 168,60
    Siemens ALPHA Distribution Board, 36 Way
    • RS Stock No. 211-6082
    • Mfr. Part No. 8GB1372-3
    Each
    Kr. 2 033,13
    RS PRO 1.25A T Glass Cartridge Fuse, 5 x 20mm
    • RS Stock No. 563-548
    Each (In a Pack of 10)
    Kr. 3,764
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