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    Circuit Breakers

    Having an effective and well-designed circuit protection system in every building is vital. It not only protects machinery and equipment from costly damage or even worse an electrical fire, but good circuit protection also ensures people are safe too.

    Here, at RS we stock an extensive range of high-quality products within our circuit breaker range. They include various types of protection devices as well as consumer units, distribution boards and accessories. Whether you are designing and building a new system or maintaining an old one we have everything you need, providing the perfect end-to-end solution.

    What are the different types of circuit breakers?

    RCBO Breakers

    RCBO stands for Residual Current Circuit Breaker with Over Current protection. Installed in consumer units they protect from short circuits, overload current and residual current as they combine all the functions of an MCB and an RCCB.

    RCCB Breakers

    RCCB stands for Residual Current Circuit Breaker. They are designed to quickly disconnect any circuit as soon as current leaks to the earthing wire. RCCBs are also effective in protecting from electrocution or shock from direct contact.

    MCB Breakers

    MCB stands for Miniature Circuit Breaker. They are designed to protect an electric circuit from overcurrent only. They do not safeguard people from electric shock caused by earth leakage.

    MCCB Breakers

    MCCB stands for Moulded Case Circuit Breaker. They are another type of electrical protection device used in higher current rating applications where an MCB would not suffice. An MCCB protects against overload and short circuit faults. With its high breaking capacity and a wider range of current ratings, MCCBs are typically found in industrial systems rather than domestic systems.

    Busbar Feed & Tap-Off Units
    Busbar Feed & Tap-Off Units
    Busbar Trunking
    Busbar Trunking
    Busbar Trunking Accessories
    Busbar Trunking Accessories
    Busbars
    Busbars
    Circuit Breaker Accessories
    Circuit Breaker Accessories
    Circuit Trips
    Circuit Trips
    Consumer Units
    Consumer Units
    Distribution Boards
    Distribution Boards
    Electronic Circuit Breakers
    Electronic Circuit Breakers
    Energy Monitoring Devices
    Energy Monitoring Devices
    MCBs
    MCBs
    MCCBs
    MCCBs
    RCBOs
    RCBOs
    RCCBs
    RCCBs
    RCDs
    RCDs
    Surge Protection Devices
    Surge Protection Devices
    Thermal Breakers
    Thermal Breakers

    37523 Products showing for Circuit Breakers

    1 of 999+
    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
    €10.72
    ABB S203L MCB, 3P, 6A Curve C, 400V AC, 6 kA Breaking Capacity
    • RS Stock No. 201-390
    • Mfr. Part No. 2CDS243701R0064
    Each
    €68.31
    TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 20A Current Rating
    • RS Stock No. 782-7984
    • Mfr. Part No. W58-XB1A4A-20
    Each
    €13.72
    ABB Cover for use with 2 And 3 Phases Busbars
    • RS Stock No. 250-4780
    • Mfr. Part No. 2CDL800001R0030
    1 Box of 10
    €23.96
    Better World
    Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 85 kA, Fixed Mount
    • RS Stock No. 210-1737
    • Mfr. Part No. 3VA2340-6HL32-0AA0
    Each
    €1,328.63
    ABB System Pro M Compact S200 MCB, 3P, 100A Curve B, 440V AC, 10 kA Breaking Capacity
    • RS Stock No. 231-9683
    • Mfr. Part No. 2CDS253001R0825 S203-B100 6kA
    1 Box of 1
    €192.71
    ABB 12 Way Plastic Consumer Unit, 63A, IP65 Mistral65
    • RS Stock No. 183-3758
    • Mfr. Part No. 1SLM006500A2212
    Each
    €40.22
    ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 16A Current Rating
    • RS Stock No. 344-5333
    • Mfr. Part No. 1658-G21-02-P10-16A
    Each
    €5.55
    Europa EUC1P EUC MCB, 1P, 4A Curve C, 230V AC, 10 kA Breaking Capacity
    • RS Stock No. 849-6490
    • Mfr. Part No. EUC1P4C
    Each
    €7.90
    Better World
    Schneider Electric Acti 9 iC60H MCB, 3P, 50A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
    • RS Stock No. 791-3401
    • Mfr. Part No. A9F54350
    Each
    €109.10
    Better World
    Schneider Electric Easy 9 EZ9 MCB, 1P, 10A Curve B, 230V AC, 6 kA Breaking Capacity
    • RS Stock No. 850-8593
    • Mfr. Part No. EZ9F16110
    Each
    €6.38
    Better World
    Schneider Electric Multi 9 C60SP MCB, 1P, 63A Curve C, 415V AC, 60V DC, 20 kA Breaking Capacity
    • RS Stock No. 211-2364
    • Mfr. Part No. M9F22163
    Each
    €26.12
    Siemens 400V ac Undervoltage Release Circuit Trip for use with Motor Circuit Breaker
    • RS Stock No. 706-1936
    • Mfr. Part No. 3RV2902-1AV0
    Each
    €34.92
    Europa EUC1P EUC MCB, 1P, 2A Curve C, 230V AC, 10 kA Breaking Capacity
    • RS Stock No. 849-6496
    • Mfr. Part No. EUC1P2C
    Each
    €7.90
    Eaton xEffect MCB, 1P, 32A Curve B, 230 → 400V AC, 6 kA Breaking Capacity
    • RS Stock No. 769-4444
    • Mfr. Part No. 239025 FAZ6-B32/1
    Each
    €23.60
    Europa EUB1 EUB MCB, 1P, 32A Curve B, 230V AC
    • RS Stock No. 798-2209
    • Mfr. Part No. EUB132B
    Each
    €4.50
    ABB S203L MCB, 3P, 25A Curve C, 400V AC, 6 kA Breaking Capacity
    • RS Stock No. 203-080
    • Mfr. Part No. 2CDS243701R0254
    Each
    €61.48
    RS PRO Residential RCCBs, 63A, 2 Pole, 30mA, Type A, 230V
    • RS Stock No. 284-2371
    Each
    €39.85
    ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 6A Current Rating
    • RS Stock No. 344-5327
    • Mfr. Part No. 1658-G21-02-P10-6A
    Each
    €5.55
    Europa EUB1 EUB MCB, 1P, 63A Curve B, 230V AC
    • RS Stock No. 798-2227
    • Mfr. Part No. EUB163B
    Each
    €4.50
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