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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.

    1651 產品顯示為 RCCBs

    HK$374.09
    RS PRO
    RCCB
    63A
    2
    -
    30mA
    Type A
    -
    230V
    -
    -
    -
    -
    HK$299.27
    RS PRO
    RCCB
    25A
    2
    -
    30mA
    Type A
    -
    230V
    -
    -
    -
    -
    HK$1,025.94
    RS PRO
    RCCB
    63A
    4
    -
    30mA
    Type A
    -
    400V
    -
    -
    -
    -
    HK$848.05
    RS PRO
    RCCB
    40A
    4
    -
    30mA
    Type A
    -
    400V
    -
    -
    -
    -
    HK$1,573.00
    RS PRO
    RCCB
    16A
    2
    -
    10mA
    Type A
    -
    230V
    -
    -
    -
    -
    HK$659.97
    RS PRO
    RCCB
    25A
    2
    -
    300mA
    Type A
    -
    230V
    -
    -
    -
    -
    HK$659.74
    RS PRO
    RCCB
    40A
    2
    -
    300mA
    Type A
    -
    230V
    -
    -
    -
    -
    HK$6,804.40
    RS PRO
    RCCB
    40A
    4
    -
    30mA
    Type B
    -
    400V
    -
    -
    -
    -
    HK$868.75
    RS PRO
    RCCB
    40A
    4
    -
    300mA
    Type A
    -
    400V
    -
    -
    -
    -
    HK$374.09
    RS PRO
    RCCB
    40A
    2
    -
    30mA
    Type A
    -
    230V
    -
    -
    -
    -
    HK$539.74
    RS PRO
    RCCB
    25A
    4
    -
    30mA
    Type A
    -
    400V
    -
    -
    -
    -
    • RS庫存編號 230-6689
    • 製造零件編號 A9R51463
    HK$1,030.63
    Schneider Electric
    RCCB
    63A
    4
    Acti9
    30mA
    Type A
    IID
    380 → 415V ac
    -
    -
    -
    -
    Better World
    • RS庫存編號 734-9191
    • 製造零件編號 A9Q14425
    HK$2,681.21
    Schneider Electric
    RCD
    25A
    4
    Acti9
    300mA
    Type AC
    iC60
    -
    -
    -
    Yes
    Green Premium
    • RS庫存編號 863-7773
    • 製造零件編號 4 115 55
    HK$612.80
    Legrand
    RCD
    40A
    1+N
    DX
    30mA
    Type A
    4115
    -
    -
    -
    -
    -
    • RS庫存編號 225-6082
    • 製造零件編號 2CSB204101R1630 DDA204 A-63/0.03
    HK$1,804.10
    ABB
    RCD
    63A
    4
    -
    30mA
    -
    DDA200
    -
    -
    -
    -
    -
    • RS庫存編號 732-0023
    • 製造零件編號 4 115 04
    HK$1,071.10
    Legrand
    RCD
    25A
    1+N
    DX
    30mA
    Type AC
    DX3
    -
    -
    -
    -
    -
    • RS庫存編號 186-3457
    • 製造零件編號 2CSF202002R1630
    HK$666.90
    ABB
    RCCB
    63A
    2
    -
    30mA
    Type AC
    FH200
    230V
    CE
    -
    -
    -
    • RS庫存編號 246-2379
    • 製造零件編號 2CCG001698R0001
    HK$2,257.30
    ABB
    RCCB
    10A
    2
    SMISSLINE TP
    30mA
    Type C
    -
    240V ac
    -
    -
    -
    -
    Better World
    HK$1,528.10
    Schneider Electric
    RCBO
    32A
    1+N
    Acti9
    300mA
    Type C
    iDPN
    400V
    IEC
    -
    Yes
    Green Premium
    Better World
    • RS庫存編號 734-9343
    • 製造零件編號 A9R11263
    HK$2,831.25
    Schneider Electric
    RCCB
    63A
    2
    Acti 9
    30mA
    -
    iID
    -
    -
    -
    Yes
    Green Premium
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