Molded Case Breakers

7248 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    7248 products
    LAL36400MB - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LAL36400MB - Square D - Molded Case Circuit Breaker
    Feed-Thru - 600 Amp - 3 Pole - 600 Volt
    Schneider Electric
    KCB34150 - Square D - Molded Case Circuit Breaker
    KCB34150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 480 Volt
    Schneider Electric
    KC32225 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 225 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Sale
    JJA262501 - Square D - Molded Case Circuit Breaker
    JJA262501 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 250 Amp - 2 Pole - 600 Volt
    Schneider Electric
    Save $450 CAD
    DGP36600E20 - Square D - Molded Case Circuit Breaker
    Bolt-On - 600 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Sale
    JGA262501 - Square D - Molded Case Circuit Breaker
    JGA262501 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 250 Amp - 2 Pole - 600 Volt
    Schneider Electric
    Save $430 CAD
    Sale
    BGA261252 - Square D 125 Amp 2 Pole 600 Volt Molded Case Circuit Breaker
    BGA261252 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 125 Amp - 2 Pole - 600 Volt
    Schneider Electric
    Save $430 CAD
    KAL36090 - Square D - Molded Case Circuit Breaker
    KAL36090 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 90 Amp - 3 Pole - 600 Volt
    Schneider Electric
    QDA32080 - Square D 80 Amp 3 Pole 240 Volt Molded Case Circuit Breaker
    QDA32080 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 80 Amp - 3 Pole - 240 Volt
    Schneider Electric
    KA36110 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 110 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Sale
    HJL36150U31X - Square D - Molded Case Circuit Breaker
    HJL36150U31X - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,260 CAD
    Sale
    HJL36020AA - Square D - Molded Case Circuit Breaker
    HJL36020AA - Square D - Molded Case Circuit Breaker
    Feed-Thru - 20 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $680 CAD
    Sale
    HJL36030AA - Square D - Molded Case Circuit Breaker
    HJL36030AA - Square D - Molded Case Circuit Breaker
    Feed-Thru - 30 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $770 CAD
    FAL240201021 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 20 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Sale
    NJG3B300 - Square D - Molded Case Circuit Breaker
    Bolt On - 300 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $330 CAD
    Sale
    LGA36250U33X - Square D 250 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LGA36250U33X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 250 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $4,545 CAD
    FAL320801021 - Square D 80 Amp 3 Pole 240 Volt Molded Case Circuit Breaker
    FAL320801021 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 80 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Limited availability
    MGL26400 - Square D 400 Amp 2 Pole 600 Volt Molded Case Circuit Breaker
    MGL26400 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 2 Pole - 600 Volt
    Schneider Electric
    Save $560 CAD
    HLL36150LV - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    KH36150 - Square D - Molded Case Circuit Breaker
    KH36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    FAL34040G - Square D - Molded Case Circuit Breaker
    Feed-Thru - 40 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Limited availability
    PJL26000S10 - Square D 1000 Amp 2 Pole 600 Volt Molded Case Circuit Breaker
    PJL26000S10 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 1000 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $840 CAD
    Sale
    MGP36800 - Square D 800 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    MGP36800 - Square D - Molded Case Circuit Breaker
    Bolt On - 800 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,142 CAD
    Sale
    MAL36300 - Square D 300 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    MAL36300 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,500 CAD
    Sale
    LJF36400U31X - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LJF36400U31X - Square D - Molded Case Circuit Breaker
    Bolt On - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $4,660 CAD
    KH36225 - Square D - Molded Case Circuit Breaker
    KH36225 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 225 Amp - 3 Pole - 600 Volt
    Schneider Electric
    FAL320301380 - Square D - Molded Case Circuit Breaker
    Bolt-On - 30 Amp - 3 Pole - 240 Volt
    Schneider Electric
    KI36175 - Square D - Molded Case Circuit Breaker
    KI36175 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 175 Amp - 3 Pole - 600 Volt
    Schneider Electric
    KI36125 - Square D - Molded Case Circuit Breaker
    KI36125 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 125 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Sale
    LH36150 - Square D 150 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LH36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,010 CAD
    Sale
    HDA36100U53X - Square D 100 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HDA36100U53X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 100 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $630 CAD
    JJL36250U44X - Square D - Molded Case Circuit Breaker
    JJL36250U44X - Square D - Molded Case Circuit Breaker
    Feed-Thru - 250 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Sale
    MJA36450 - Square D 450 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    MJA36450 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 450 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $144 CAD
    JDP34250WU31X - Square D - Molded Case Circuit Breaker
    Bolt On - 250 Amp - 3 Pole - 480 Volt
    Schneider Electric
    JDM34250WU31X - Square D - Molded Case Circuit Breaker
    Bolt On - 250 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Q4L2250 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 250 Amp - 2 Pole - 240 Volt
    Schneider Electric
    Sale
    PJL36000S10 - Square D 1000 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    PJL36000S10 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 1000 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $800 CAD
    FAL341001380 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 100 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Sale
    LGA36600U33X - Square D 600 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LGA36600U33X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 600 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $4,616 CAD
    Sale
    KC34225 - Square D - Molded Case Circuit Breaker
    KC34225 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 225 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Save $812 CAD
    Recently viewed