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    MCCBs

    Molded Case Circuit Breakers (MCCBs) are protective devices used to interrupt and protect electrical circuits from overcurrent and short-circuits. MCCBs are electrical devices that can be used to protect a wide range of electrical systems and equipment.

    They are commonly used in low and medium-voltage applications and can handle higher levels of current than Miniature Circuit Breakers (MCBs). MCCBs typically have a rated current of 10 amps to 2,500 amps, and a breaking capacity of up to 200 kA.

    How does an MCCB work?

    An MCCB consists of a current-carrying bimetallic strip, a magnetic trip element, and a mechanical latching mechanism. When the current flowing through the MCCB exceeds the set limit, the bimetallic strip heats up and bends, causing the latch to release and trip the breaker. The magnetic trip element senses the magnetic field produced by a high fault current and trips the breaker.

    Difference between an MCB and an MCCB

    MCBs are miniature circuit breakers designed to protect low-current circuits up to 125 amps. They typically have a breaking capacity of up to 10 kA and are designed to trip quickly in the event of a short circuit or overload. MCBs are commonly used in residential and commercial buildings to protect individual circuits, such as lighting and power circuits.

    MCCBs, on the other hand, are designed to handle higher levels of current (depending on which current rating you buy) and can protect larger electrical systems and equipment. They have a higher breaking capacity than MCBs.

    Typical applications

    MCCBs are commonly used in a wide range of applications, including:

    • Industrial plants: MCCBs are used to protect motors, transformers, and other equipment in industrial plants.
    • Data centres: MCCBs are used to protect power distribution systems in data centres.
    • Commercial buildings: MCCBs are used to protect lighting and power circuits in commercial buildings.
    • Hospitals: MCCBs are used to protect critical equipment in hospitals, such as MRI machines and X-ray machines.

    11013 Produits présentés pour MCCBs

    Better World
    • N° de stock RS 254-6345
    • Référence fabricant C16F3TM160
    la pièce
    810,20 €
    Schneider Electric
    ComPacT NSX
    ComPacT NSX160F
    3
    160A
    -
    -
    -
    Fixed
    105mm
    161mm
    86mm
    -
    Yes
    Green Premium
    Better World
    • N° de stock RS 224-7918
    • Référence fabricant 3VA2463-5HL32-0AA0
    la pièce
    2 626,00 €
    Siemens
    SENTRON
    3VA2
    3P
    630A
    85 kA
    690V
    -
    DIN Rail Mount
    248mm
    138mm
    110mm
    Concentrated or compact solution, Extended product life
    Yes
    -
    • N° de stock RS 260-8106
    • Référence fabricant C40F4TM400D
    la pièce
    2 704,83 €
    Schneider Electric
    ComPacT
    NSX
    4
    400A
    -
    -
    -
    Fixed
    -
    -
    -
    -
    -
    -
    • N° de stock RS 454-8146
    • Référence fabricant 259086 NZMN1-A125
    la pièce
    599,12 €
    Eaton
    xEnergy
    -
    3
    125A
    50 kA
    690V
    750V
    Fixed
    90mm
    145mm
    84.5mm
    -
    -
    -
    • N° de stock RS 232-0095
    • Référence fabricant 1SDA054437R1 T5N400 FF TMA 400A
    la pièce
    3 122,36 €
    ABB
    SACE Tmax T
    T5N
    3
    400A
    70 kA
    690V
    750V
    Fixed
    103.5mm
    140mm
    205mm
    -
    -
    -
    • N° de stock RS 347-121
    • Référence fabricant C40F44B400
    la pièce
    9 068,85 €
    Schneider Electric
    ComPacT
    C40
    4
    400A
    10 kA
    -
    -
    Fixed
    -
    -
    -
    -
    -
    -
    • N° de stock RS 231-9331
    • Référence fabricant 1SDA100355R1 XT5N 630 EkipDip LS/I 630
    la pièce
    2 292,20 €
    ABB
    SACE Tmax XT
    XT5N
    3
    630A
    -
    -
    -
    Fixed
    -
    -
    -
    -
    -
    -
    • N° de stock RS 254-6346
    • Référence fabricant C16F4
    la pièce
    945,57 €
    Schneider Electric
    ComPacT NSX
    ComPacT NSX160F
    4
    160A
    -
    -
    -
    Fixed
    -
    -
    -
    -
    -
    -
    • N° de stock RS 335-273
    • Référence fabricant NSNL630
    la pièce
    222,68 €
    Schneider Electric
    PowerPact
    NSNL
    -
    630A
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • N° de stock RS 261-2913
    • Référence fabricant 140G-K6X3
    la pièce
    3 692,84 €
    Allen Bradley
    140G
    140G
    3
    400A
    -
    -
    -
    Module Frame Mount
    -
    -
    -
    -
    -
    -
    Better World
    • N° de stock RS 178-7905
    • Référence fabricant LV426979
    la pièce
    27,52 €
    Schneider Electric
    Compression Lug
    -
    4
    -
    -
    -
    -
    Cable Mount
    -
    -
    -
    -
    Yes
    Green Premium
    • N° de stock RS 237-6222
    • Référence fabricant 1SDA067039R1 XT2N 160 TMA 100A FF
    la pièce
    660,19 €
    ABB
    XT2N
    1SDA06
    4
    100A
    -
    -
    -
    Fixed
    -
    -
    -
    -
    -
    -
    Better World
    • N° de stock RS 221-0938
    • Référence fabricant LV429388
    la pièce
    112,54 €
    Schneider Electric
    ComPact
    LV42
    -
    -
    -
    -
    -
    Fixed
    -
    -
    -
    -
    Yes
    Green Premium
    • N° de stock RS 288-7184
    • Référence fabricant C256TM250
    la pièce
    669,23 €
    Schneider Electric
    ComPacT
    NSX100
    4
    250A
    -
    -
    -
    Fixed
    -
    -
    -
    -
    -
    -
    Better World
    • N° de stock RS 831-9179
    • Référence fabricant 1SDA068058R1 XT3N 250 TMD 200-2000 3p F F
    la pièce
    928,90 €
    ABB
    Protecta
    XT3N
    3
    250A
    36 kA
    690V
    500V
    DIN Rail Mount
    105mm
    150mm
    70mm
    Designed for disassembly
    Yes
    -
    • N° de stock RS 240-915
    • Référence fabricant 191390 NZMH3-4-AX630/VAR
    la pièce
    4 254,12 €
    Eaton
    Eaton Moeller NZM
    -
    4
    630A
    9 kA
    -
    -
    Fixed
    -
    -
    -
    -
    -
    -
    • N° de stock RS 232-0089
    • Référence fabricant 1SDA054400R1 T5N630 FF PR221-LS 630A
    la pièce
    4 656,50 €
    ABB
    SACE Tmax T
    T5N
    4
    630A
    -
    -
    -
    Fixed
    -
    -
    -
    -
    -
    -
    Better World
    • N° de stock RS 254-6300
    • Référence fabricant C10N3TM100
    la pièce
    921,21 €
    Schneider Electric
    ComPacT NSX
    ComPacT NSX100N
    3
    100A
    90 kA
    690V
    -
    Fixed
    161mm
    105mm
    86mm
    -
    Yes
    Green Premium
    • N° de stock RS 537-5551
    • Référence fabricant 259094 NZMN2-A250
    la pièce
    981,75 €
    Eaton
    xEnergy
    -
    1
    250A
    50 kA
    690V
    750V
    Fixed
    105mm
    184mm
    149mm
    -
    -
    -
    • N° de stock RS 254-6342
    • Référence fabricant C16F3
    la pièce
    452,79 €
    Schneider Electric
    ComPacT NSX
    ComPacT NSX160F
    3
    160A
    -
    -
    -
    Fixed
    105mm
    161mm
    86mm
    -
    -
    -
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