최근 검색 기록

    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.

    9196 표시되는 제품 MCBs

    Better World
    개당
    ₩282,590.32
    Schneider Electric
    2
    30A
    Type C
    -
    C60H-DC
    20 kA
    500V
    Acti 9
    20 kA
    DIN Rail Mount
    MCB
    36mm
    73mm
    81mm
    -
    -
    Yes
    Green Premium
    • RS 제품 번호 922-7027
    • 제조사 부품 번호 278572 FAZ-D2/1
    개당
    ₩56,964.00
    Eaton
    1
    2A
    Type D
    240V
    -
    10 kA
    48V
    xEffect
    10 kA
    DIN Rail Mount
    MCB
    17.8mm
    66mm
    80mm
    FAZ-D2/1
    -
    -
    -
    Better World
    • RS 제품 번호 539-8223
    • 제조사 부품 번호 2CDS211001R0164 SH201-C16
    개당
    ₩23,819.60
    ABB
    1
    16A
    Type C
    440V
    SH200
    6 kA
    60V
    Compact Home
    6 kA
    DIN Rail Mount
    MCB
    85mm
    17.5mm
    69mm
    SH201-C16
    Designed for disassembly
    Yes
    -
    • RS 제품 번호 247-126
    • 제조사 부품 번호 102121 FAZ-C3/1-RT
    개당
    ₩116,977.36
    Eaton
    1
    3A
    Type C
    240V
    FAZ
    15 kA
    60V
    xEffect
    15 kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Better World
    개당
    ₩413,600.00
    Schneider Electric
    3
    50A
    Type C
    440V
    iC60H
    10 kA
    133V
    Acti 9
    10 kA
    DIN Rail Mount
    MCB
    -
    -
    91mm
    -
    -
    Yes
    Green Premium
    Better World
    • RS 제품 번호 131-977
    • 제조사 부품 번호 2CDS272001R0084 S202M-C8
    개당
    ₩82,983.20
    ABB
    2
    8A
    Type C
    440V
    S200M
    10 kA
    125V
    System Pro M Compact
    10 kA
    DIN Rail Mount
    MCB
    69mm
    35mm
    69mm
    S202M-C8
    Designed for disassembly
    Yes
    -
    • RS 제품 번호 221-3495
    • 제조사 부품 번호 279136 FAZ-C4/2-DC
    개당
    ₩237,406.40
    Eaton
    2
    4A
    -
    -
    -
    -
    -
    FAZ-DC
    -
    DIN Rail Mount
    -
    -
    -
    -
    FAZ-C4/2-DC
    -
    -
    -
    • RS 제품 번호 435-516
    • 제조사 부품 번호 2CCG001230R0001
    개당
    ₩356,993.20
    ABB
    2
    100A
    Type C
    400 V, 690V
    S800S
    50 kA
    250V
    High Performance
    50 kA
    DIN Rail Mount
    MCB
    95mm
    -
    88.5mm
    S802P-C100
    -
    -
    -
    • RS 제품 번호 200-627
    • 제조사 부품 번호 2CDS272337R0528
    개당
    ₩473,043.72
    ABB
    2
    30A
    Type Z
    440V
    SU200 M
    15 kA
    96V
    -
    15 kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS 제품 번호 201-162
    • 제조사 부품 번호 2CDS271337R0587
    개당
    ₩276,474.68
    ABB
    1
    60A
    Type K
    240V
    SU200 M
    15 kA
    48V
    -
    15 kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Better World
    • RS 제품 번호 219-9112
    • 제조사 부품 번호 M9F21232
    개당
    ₩244,249.60
    Schneider Electric
    2
    32A
    Type B
    -
    -
    10 kA
    -
    Multi 9
    10 kA
    DIN Rail Mount
    MCB
    81mm
    36mm
    72mm
    C60SP
    -
    Yes
    Green Premium
    Better World
    • RS 제품 번호 132-138
    • 제조사 부품 번호 2CDS272001R0134 S202M-C13
    개당
    ₩105,731.20
    ABB
    2
    13A
    Type C
    440V
    S200M
    10 kA
    125V
    System Pro M Compact
    10 kA
    DIN Rail Mount
    MCB
    69mm
    35mm
    69mm
    S202M-C13
    Designed for disassembly
    Yes
    -
    Better World
    • RS 제품 번호 622-0036
    • 제조사 부품 번호 5SY4104-7
    개당
    ₩75,594.80
    Siemens
    1
    4A
    Type C
    230 V, 400V
    5SY4
    10 kA
    -
    Sentron
    10 kA
    DIN Rail Mount
    MCB
    89.8mm
    17.5mm
    76mm
    -
    Extended product life
    Yes
    -
    Better World
    • RS 제품 번호 209-6671
    • 제조사 부품 번호 5SY5103-7
    개당
    ₩123,610.00
    Siemens
    1
    3A
    Type C
    400V
    5SY5
    10 kA
    220V
    SENTRON
    10 kA
    DIN Rail Mount
    MCB
    90mm
    18mm
    76mm
    5SY5103-7
    Extended product life
    Yes
    -
    • RS 제품 번호 246-274
    • 제조사 부품 번호 132419 FAZ-B5/1-NA
    개당
    ₩56,127.40
    Eaton
    1
    5A
    Type B
    240V
    FAZ
    15 kA
    60V
    xEffect
    15 kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Better World
    개당
    ₩406,286.80
    Schneider Electric
    3
    25A
    Type C
    440V
    C60BP
    15 kA
    -
    Multi 9
    15 kA
    DIN Rail Mount
    Residential MCB
    103mm
    54mm
    72mm
    M9F42325
    -
    Yes
    Green Premium
    Better World
    • RS 제품 번호 746-7699
    • 제조사 부품 번호 2CDS252001R0024 S202-C2
    개당
    ₩98,963.20
    ABB
    2
    2A
    Type C
    400V
    S200
    6 kA
    -
    System Pro M Compact
    6 kA
    DIN Rail Mount
    MCB
    88mm
    35mm
    69mm
    S202-C2
    Designed for disassembly
    Yes
    -
    • RS 제품 번호 183-3682
    • 제조사 부품 번호 2CCS894001R0634
    개당
    ₩553,566.00
    ABB
    4
    63A
    Type C
    690V
    S800N
    36 kA
    375V
    High Performance
    36 kA
    DIN Rail Mount
    MCB
    106mm
    82.5mm
    95mm
    S804N-C63
    -
    -
    -
    Better World
    개당
    ₩125,283.20
    Schneider Electric
    2
    40A
    Type C
    440 V, 12 → 133 V, 220 → 240 V, 380 → 415V
    iC60H
    10 kA
    100 → 133V
    Acti 9
    10 kA
    DIN Rail Mount
    MCB
    85mm
    36mm
    78.5mm
    -
    -
    Yes
    Green Premium
    • RS 제품 번호 847-3526
    • 제조사 부품 번호 278896 FAZ-D16/3
    개당
    ₩131,280.40
    Eaton
    3
    16A
    Type D
    240 → 415V
    -
    10 kA
    60V
    xEffect
    10 kA
    DIN Rail Mount
    MCB
    54mm
    85mm
    73mm
    FAZ-D16/3
    -
    -
    -
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