RCCBs | Residual Current Circuit Breakers | RS
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    RCCBs

    An RCCB or residual-current circuit breaker is a safety device used to protect electrical circuits. RCCBs protect people from electric shocks, and electrocution and help prevent electrical fires.

    RS offers an extensive range of high-performance RCCBs and RCDs from leading brands including ABB, Schneider Electric, and Siemens.

    How does an RCCB work?

    An RCCBs incoming current must equal the outgoing current in any circuit. RCCBs can compare the difference in current values between the live and neutral wires. When appliances are working correctly all current entering the appliance through the live wire leaves the appliance via the neutral wire. If a fault occurs some current can flow through the earth wire if there is no earth this can even flow through you. This results in the unequal current flow coming into the device to what is going out, this difference is referred to as residual current.

    What is the difference between an RCCB and an RCD?

    An RCD (residual current device) can keep an electrical system safe by preventing fatal electrical shocks. RCDs can also provide protection from electrical fires. An RCCB is essentially an RCD minus the overload protection. They are typically used in applications where the risk of electric shock is limited. For more detailed information see our in-depth RCDs Guide.

    What are the different types of RCCB and RCD?

    RCCBs and RCDs are usually mounted on DIN rail. They can be 2, 3, or 4 poles. Varying in current ratings, trip sensitivity, and tripping characteristics. All these specifications should be carefully considered depending on your individual needs and application.

    1528 Products showing for RCCBs

    Eaton
    RCCB
    10A
    2
    Series xPole
    100mA
    Type B
    PKPM2
    230V
    -
    -
    -
    -
    Eaton
    RCCB
    25A
    4
    -
    300mA
    Type A
    -
    230 V ac, 400 V ac
    -
    -
    -
    -
    Siemens
    RCCB
    40A
    2
    SENTRON
    300mA
    Type A
    5SV3
    230V ac
    -
    Extended product life
    Yes
    -
    ABB
    RCD
    25A
    3+N
    System Pro M Compact
    30mA
    Type A
    DDA 200 A
    -
    -
    -
    -
    -
    Eaton
    RCCB
    25A
    2
    xEffect
    100mA
    -
    xEffect - FRCmM
    240V ac
    -
    -
    -
    -
    Lovato
    RCCB
    40A
    4
    P1RD4P
    300mA
    Type A
    P1RD
    230 or 400V ac
    -
    -
    -
    -
    Eaton
    RCCB
    25A
    2
    xEffect - Industrial Switchgear
    300mA
    Type A
    xE?ect - FRCmM-NA
    240/415V ac
    -
    -
    -
    -
    ABB
    RCCB
    40A
    2
    -
    -
    Type A
    F200
    230/400V ac
    -
    -
    -
    -
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