MCBs | Miniature Circuit Breakers | RS
Connectez-vous / Enregistrez-vous pour accéder aux avantages de votre compte
Récemment recherché

    MCBs

    MCBs, or Miniature Circuit Breakers, are electrical devices designed to protect an electrical circuit from damage caused by overcurrent. They serve as a crucial component in the electrical distribution system of buildings, homes, and industrial facilities. You can learn more in our MCB guide.

    RS offer a comprehensive selection of high-quality Miniature Circuit Breakers from industry-leading brands including ABB, Siemens, Schneider Electric, Eaton, Rockwell Automation and Lovato.

    How does a miniature circuit breaker work?

    MCBs automatically disconnect the electrical circuit when they detect a current exceeding the rated capacity of the circuit. This action helps prevent overheating and potential damage to the wiring, appliances, or other connected devices.

    What are the different types of circuit breakers?

    MCBs come in different types, including Type B, C, and D, each designed to trip at different levels of overcurrent. The choice of MCB type depends on the specific characteristics of the electrical load it is protecting.

    • Type B: General purpose, suitable for domestic installations. Trips between 3 and 5 times the load current.
    • Type C: Designed for applications with higher inrush currents, such as motors and transformers. Trips between 5 and 10 times the full load current.
    • Type D: Intended for circuits with significant inrush currents, like those associated with high-powered equipment. Trips between 10 and 20 times the full load current.

    What is the tripping mechanism of an MCB?

    MCBs typically use thermal and magnetic tripping mechanisms. The thermal component responds to prolonged overcurrent conditions, while the magnetic component reacts to short-circuit currents.

    Where are MCBs installed?

    MCBs are installed in distribution boards or consumer units and are often used in conjunction with residual current devices (RCDs) for enhanced electrical safety.

    Can I reset an MCB?

    After tripping due to overcurrent, MCBs can usually be reset manually. However, it is crucial to investigate and address the cause of the overcurrent before resetting to avoid potential hazards.

    MCBs play a vital role in electrical safety by preventing electrical fires and protecting equipment from damage caused by excessive current. They are an integral part of modern electrical installations, contributing to the overall reliability and safety of electrical systems.

    8297 Produits présentés pour MCBs

    Schneider Electric
    2P
    2A
    iC60L
    Type C
    -
    15 kA
    -
    Acti 9
    15 kA
    MCB
    DIN Rail Mount
    85mm
    36mm
    78.5mm
    A9F94202
    -
    Yes
    Green Premium
    Eaton
    1P+N
    5A
    FAZ
    Type C
    230V
    10 kA
    -
    xEffect
    10 kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Contactum
    3P
    6A
    -
    Type C
    415V
    10 kA
    -
    -
    10 kA
    MCB
    DIN Rail Mount
    -
    -
    -
    CPB1006C3
    -
    -
    -
    Eaton
    3P
    16A
    FAZ
    Type Z
    400V
    10 kA
    60V
    xEffect
    10 kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Eaton
    1P+N
    16A
    FAZ
    Type K
    230V
    15 kA
    -
    xEffect
    15 kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Eaton
    1P
    50A
    -
    Type C
    230 V, 240V
    10 kA
    48V
    MEMShield
    10 kA
    MCB
    DIN Rail Mount
    18mm
    75mm
    80mm
    -
    -
    -
    -
    Schneider Electric
    2P
    16A
    iC60L
    Type B
    -
    15 kA
    -
    Acti 9
    15 kA
    MCB
    DIN Rail Mount
    85mm
    36mm
    78.5mm
    A9F93216
    -
    Yes
    Green Premium
    Siemens
    1P+N
    20A
    5SY4
    Type D
    230V
    10 kA
    -
    Sentron
    10 kA
    MCB
    DIN Rail Mount
    90mm
    36mm
    76mm
    -
    Extended product life
    Yes
    -
    Schneider Electric
    2P
    5A
    C60SP
    Type D
    440V
    15 kA
    125V
    Multi 9
    15 kA
    Residential MCB
    DIN Rail Mount
    81mm
    36mm
    72mm
    M9F23205
    -
    Yes
    Green Premium
    Schneider Electric
    2P
    20A
    -
    Type C
    -
    10 kA
    -
    Multi 9
    10 kA
    MCB
    DIN Rail Mount
    81mm
    36mm
    72mm
    C60SP
    -
    Yes
    Green Premium
    Eaton
    1P
    25A
    FAZ
    Type C
    -
    10 kA
    250V
    xEffect
    10 kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Eaton
    4P
    4A
    FAZ
    Type K
    400V
    7.5 kA
    60V
    xEffect
    7.5 kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    3P
    32A
    5SY4
    Type C
    440V
    10 kA
    -
    SENTRON
    10 kA
    MCB
    DIN Rail Mount
    90mm
    54mm
    76mm
    -
    Extended product life
    Yes
    -
    Eaton
    3P+N
    5A
    FAZ
    Type D
    400V
    10 kA
    -
    xEffect
    10 kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    3P
    16A
    C60SP
    Type D
    440V
    15 kA
    -
    Multi 9
    15 kA
    Residential MCB
    DIN Rail Mount
    81mm
    54mm
    72mm
    M9F23316
    -
    Yes
    Green Premium
    Siemens
    3P
    40A
    5SP3840
    Type E
    -
    -
    -
    SENTRON
    -
    -
    DIN Rail Mount
    -
    -
    -
    5SP3840-3
    -
    -
    -
    ABB
    1P
    32A
    SH200
    Type C
    440V
    6 kA
    60V
    Compact Home
    6 kA
    MCB
    DIN Rail Mount
    85mm
    17.5mm
    69mm
    SH201-C32
    Designed for disassembly
    Yes
    -
    Siemens
    4P
    25A
    5SY4
    Type C
    400V
    10 kA
    -
    Sentron
    10 kA
    MCB
    DIN Rail Mount
    70.4mm
    76mm
    90mm
    -
    Extended product life
    Yes
    -
    Schneider Electric
    1P
    20A
    -
    Type C
    230V
    7.5 kA
    -
    Acti 9
    7.5 kA
    Residential MCB
    DIN Rail Mount
    85mm
    18mm
    74mm
    IDT40N XA
    -
    Yes
    Green Premium
    Schneider Electric
    3P
    63A
    C60BP
    Type C
    440V
    15 kA
    -
    Multi 9
    15 kA
    Residential MCB
    DIN Rail Mount
    103mm
    54mm
    72mm
    M9F42363
    -
    Yes
    Green Premium
    Résultats par page