Molded Case Circuit Breakers

239 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    239 products
    Sale
    CKD3400F - Eaton - Molded Case Circuit Breaker
    CKD3400F - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Save $3,789.20
    Sale
    SGPA36AT0400 - GE 400 amp 3 pole 600 Volt Bolt-On Molded Case Circuit Breaker
    SGPA36AT0400 - GE - Molded Case Circuit Breaker
    GE
    Save $4,839.01
    Sale
    LH36400 - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LH36400 - Square D - Molded Case Circuit Breaker
    Schneider Electric
    Save $6,003.01
    Sale
    LJA36400U33X - Square D - Molded Case Circuit Breaker
    Schneider Electric
    Save $5,680.01
    Sale
    LJL36400U33X - Square D - Molded Case Circuit Breaker
    Schneider Electric
    Save $6,497.01
    Sold Out
    DK3400K - Eaton - Molded Case Circuit Breaker
    DK3400K - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Save $3,182.83
    Sale
    HMCP400R5C - Eaton - Molded Case Circuit Breaker
    HMCP400R5C - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Save $3,068.97
    Sold Out
    KD4K - Eaton - Mounting Hardware Kit
    Eaton Cutler-Hammer
    Sale
    JXD23B400 - Siemens - Molded Case Circuit Breaker
    Siemens/ITE
    Save $4,451.01
    Sale
    JD63F400 - Siemens 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker Frame
    JD63F400 - Siemens - Frame
    Siemens / ITE
    Save $276.58
    Sold Out
    TJK436F000 - GE 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    TJK436F000 - GE - Molded Case Circuit Breaker
    GE
    Save $3,934.01
    LC36400 - Square D - Molded Case Circuit Breaker
    LC36400 - Square D - Molded Case Circuit Breaker
    Schneider Electric
    Sold Out
    KDC3400C - Eaton Molded Case Circuit Breakers
    KDC3400C - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Save $10,587.69
    Sale
    HMCP400Y5X - Eaton Molded Case Circuit Breaker
    HMCP400Y5X - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Save $3,783.97
    Sold Out
    HMCP400R5 - Eaton Molded Case Circuit Breaker
    HMCP400R5 - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Save $5,567.97
    Sold Out
    HMCP400N5 - Eaton Molded Case Circuit Breaker
    HMCP400N5 - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Save $4,139.97
    Sale
    LHL26400 - Square D 400 Amp 2 Pole 600 Volt Molded Case Circuit Breaker
    LHL26400 - Square D - Molded Case Circuit Breaker
    Schneider Electric
    Save $855
    Sale
    LJF36400U31X - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LJF36400U31X - Square D - Molded Case Circuit Breaker
    Schneider Electric
    Save $4,194.01
    Sale
    LGH3400FAG - Eaton - Molded Case Circuit Breaker
    LGH3400FAG - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Save $5,225.01
    Sale
    SGPP36AT0400 - GE 400 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    SGPP36AT0400 - GE - Molded Case Circuit Breaker
    GE
    Save $7,889.01
    LGL36400U33X - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LGL36400U33X - Square D - Molded Case Circuit Breaker
    Schneider Electric
    Sold Out
    LDL36400U33X - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LDL36400U33X - Square D - Molded Case Circuit Breaker
    Schneider Electric
    Save $2,186.01
    Sale
    JXD63B400H - Siemens - Molded Case Circuit Breaker
    Siemens/ITE
    Save $683.67
    Sale
    SGHA26AT0400 - GE - Molded Case Circuit Breaker
    GE
    Save $2,068.51
    Sale
    HMCP400K5 - Eaton - Molded Case Circuit Breaker
    HMCP400K5 - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Save $934.01
    SGLL3604L3XX - GE 400 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    SGLL3604L3XX - GE - Molded Case Circuit Breaker
    GE
    KD3400K - Eaton - Molded Case Circuit Breaker
    KD3400K - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Sale
    LCL36400 - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LCL36400 - Square D - Molded Case Circuit Breaker
    Schneider Electric
    Save $4,257.01
    Sale
    DK3400 - Eaton - Molded Case Circuit Breaker
    DK3400 - Eaton - Molded Case Circuit Breaker
    Eaton Cutler-Hammer
    Save $4,328.15
    Sold Out
    KDS4K - Eaton - Mounting Hardware Kit
    Eaton Cutler-Hammer
    Sale
    TJJ436400WL - GE 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    TJJ436400WL - GE - Molded Case Circuit Breaker
    GE
    Save $5,225.01
    TJK4K - GE - Molded Case Circuit Breaker
    GE
    Sale
    CJD63L400 - Siemens - Molded Case Circuit Breaker
    Siemens / ITE
    Save $11,861.01
    Sale
    JXD63H400 - Siemens - Molded Case Circuit Breaker
    Siemens/ITE
    Save $5,228.01
    Sold Out
    JXD63L400 - Siemens - Molded Case Circuit Breaker
    Siemens/ITE
    Save $5,228.01
    LGP36400CU33X - Square D - Molded Case Circuit Breaker
    LGP36400CU33X - Square D - Molded Case Circuit Breaker
    Square D
    Sale
    JXD22B400 - Siemens - Molded Case Circuit Breaker
    Siemens/ITE
    Save $608.23
    JD63B400 - Siemens - Molded Case Circuit Breaker
    JD63B400 - Siemens - Molded Case Circuit Breaker
    Siemens/ITE
    Sale
    HHJD63B400 - Siemens - Molded Case Circuit Breaker
    Siemens/ITE
    Save $1,094.01
    Sale
    JXD63S400A - Siemens - Molded Case Circuit Breaker
    Siemens / ITE
    Save $4,917.01
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