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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

    48406 Products showing for Fuses & Circuit Breakers

    1 of 999+
    Schurter 3.15A T Ceramic Cartridge Fuse, 6.3 x 32mm
    • RS Stock No. 830-4230
    • Mfr. Part No. 8020.5016.G
    Each (In a Pack of 10)
    Kr. 9,804
    TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 30A Current Rating
    • RS Stock No. 782-0918
    • Mfr. Part No. W58-XB1A4A-30
    Each
    Kr. 118,63
    Better World
    ABB System Pro M Compact S200 MCB, 2P, 63A Curve C, 440V AC, 125V DC, 6 kA Breaking Capacity
    • RS Stock No. 746-7738
    • Mfr. Part No. 2CDS252001R0634 S202-C63
    Each
    Kr. 629,77
    Eaton 4A Ceramic Cartridge Fuse, 10 x 38mm
    • RS Stock No. 703-8370
    • Mfr. Part No. C10G4
    Each (In a Pack of 10)
    Kr. 15,558
    RS PRO 10A Inline Fuse Holder for 5x20mm Fuse, 250V
    • RS Stock No. 237-5259
    Each
    Kr. 29,06
    Eaton 2A Ceramic Cartridge Fuse, 10 x 38mm
    • RS Stock No. 489-4405
    • Mfr. Part No. C10G2
    Each (In a Pack of 10)
    Kr. 15,558
    TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 15A Current Rating
    • RS Stock No. 782-0902
    • Mfr. Part No. W58-XB1A4A-15
    Each
    Kr. 82,60
    Siemens SIMATIC Cover for use with ET 200
    • RS Stock No. 236-8445
    • Mfr. Part No. 6ES7194-3JA00-0AA0
    Each (In a Pack of 10)
    Kr. 10,742
    Better World
    Schneider Electric Acti9 Cover for use with Comb Busbar
    • RS Stock No. 237-5595
    • Mfr. Part No. A9X21095
    Each (In a Pack of 40)
    Kr. 8,637
    Finder Busbar, 10 A - 250V
    • RS Stock No. 123-2857
    • Mfr. Part No. 097.52
    Each
    Kr. 24,60
    Mersen 100A FF Cartridge Fuse, 22 x 58mm
    • RS Stock No. 136-0622
    • Mfr. Part No. F1018560 / FR22GR69V100
    Each
    Kr. 377,30
    Schurter 15A T Ceramic Cartridge Fuse, 10 x 38mm
    • RS Stock No. 209-9419
    • Mfr. Part No. 8020.2051
    Each (In a Pack of 10)
    Kr. 92,916
    RS PRO 630mA T Ceramic Cartridge Fuse, 6.3 x 32mm
    • RS Stock No. 414-409
    Each (In a Pack of 10)
    Kr. 13,328
    Eaton xEffect MCB, 1P, 6A Curve B, 240V AC, 48V DC, 10 kA Breaking Capacity
    • RS Stock No. 922-6967
    • Mfr. Part No. 278529 FAZ-B6/1
    Each
    Kr. 252,60
    Limitor Thermal Fuse +121°C 10 A/15 A, 250V ac
    • RS Stock No. 797-6042
    • Mfr. Part No. SF 119 R
    Each (In a Pack of 10)
    Kr. 8,975
    Mersen 200A German Standard Fuse, NH000, 690V ac, 77.5mm
    • RS Stock No. 304-2833
    • Mfr. Part No. A330027
    Each
    Kr. 629,27
    Eaton 3.15A F Glass Cartridge Fuse, 5 x 20mm
    • RS Stock No. 537-1155
    • Mfr. Part No. S500-3.15-R
    Each (In a Pack of 10)
    Kr. 1,956
    Schurter 4A M Glass Ceramic Cartridge Fuse, 5 x 20mm
    • RS Stock No. 865-7405
    • Mfr. Part No. 0034.2522
    Each (In a Pack of 10)
    Kr. 8,637
    Limitor Thermal Fuse +140°C 2.5 A, 250V ac
    • RS Stock No. 204-7483
    • Mfr. Part No. Q82 A 140 05 100
    Each
    Kr. 55,19
    RS PRO 2.5A T Ceramic Cartridge Fuse, 5 x 20mm
    • RS Stock No. 911-3499
    Each (In a Pack of 10)
    Kr. 4,187
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