Molded Case Breakers

7536 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    7536 products
    QBL22100 - Square D 100 Amp 2 Pole 240 Volt Thermal Magnetic Molded Case Circuit Breaker
    QBL22100 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 100 Amp - 2 Pole - 240 Volt
    Schneider Electric
    QBA32200 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 200 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Sale
    LAL36400 - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LAL36400 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $848 CAD
    Sale
    HLL36150 - Square D - Molded Case Circuit Breaker
    HLL36150 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,026 CAD
    Sale
    HLL36040 - Square D - Molded Case Circuit Breaker
    HLL36040 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,010 CAD
    Sale
    HLA36040 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $910 CAD
    Sale
    FH36030 - Square D 30 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    FH36030 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 30 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $127 CAD
    Sale
    FAL36020 - Square D 20 Amp 3 Pole 600 Volt Lug Molded Case Circuit Breaker
    FAL36020 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 20 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $96 CAD
    FAL34060 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 60 Amp - 3 Pole - 480 Volt
    Schneider Electric
    FAL34020 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 20 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Limited availability
    EDB36035 - Square D 35 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EDB36035 - Square D - Molded Case Circuit Breaker
    Bolt-On - 35 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $234 CAD
    EDB34025 - Square D 25 Amp 3 Pole 480 Volt Bolt-On Molded Case Circuit Breaker
    EDB34025 - Square D - Molded Case Circuit Breaker
    Bolt-On - 25 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Limited availability
    EDB26070 - Square D 70 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EDB26070 - Square D - Molded Case Circuit Breaker
    Bolt-On - 70 Amp - 2 Pole - 600 Volt
    Schneider Electric
    Save $65 CAD
    EDB24060 - Square D 60 Amp 2 Pole 480 Volt Bolt-On Molded Case Circuit Breaker
    EDB24060 - Square D - Molded Case Circuit Breaker
    Bolt-On - 60 Amp - 2 Pole - 480 Volt
    Schneider Electric
    Sale
    HJL36150 - Square D - Molded Case Circuit Breaker
    HJL36150 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $490 CAD
    Sale
    HJL36030 - Square D - Molded Case Circuit Breaker
    HJL36030 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 30 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $350 CAD
    Sale
    HJA36150 - Square D 150 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HJA36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,205 CAD
    Sale
    HJA36040 - Square D 40 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HJA36040 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $240 CAD
    Sale
    HGA36150 - Square D 150 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGA36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $873 CAD
    Sale
    HGA36125 - Square D 125 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGA36125 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 125 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $519 CAD
    Sale
    HDL36070 - Square D 70 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HDL36070 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 70 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $270 CAD
    Sale
    HDL36015 - Square D 15 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HDL36015 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 15 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $300 CAD
    Sale
    JJL36250 - Square D - Molded Case Circuit Breaker
    JJL36250 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 250 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,730 CAD
    Sale
    JJA36250 - Square D - Molded Case Circuit Breaker
    JJA36250 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 250 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,210 CAD
    Sale
    JDA36175 - Square D - Molded Case Circuit Breaker
    JDA36175 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 175 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $220 CAD
    Sale
    QDL22200 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 200 Amp - 2 Pole - 240 Volt
    Schneider Electric
    Save $157 CAD
    SGLA36AT0600 - GE - Molded Case Circuit Breaker
    SGLA36AT0600 - GE - Molded Case Circuit Breaker
    SGLA36AT0600 - GE - Molded Case Circuit Breaker
    Bolt-On - 600 Amp - 3 Pole - 600 Volt
    GE
    Sale
    SGLA36AT0400 - GE - Molded Case Circuit Breaker
    SGLA36AT0400 - GE - Molded Case Circuit Breaker
    SGLA36AT0400 - GE - Molded Case Circuit Breaker
    Bolt-On - 400 Amp - 3 Pole - 600 Volt
    GE
    Save $990 CAD
    3VA5340-5EC31-0AA0 - Siemens - Molded Case Circuit Breakers
    3VA5340-5EC31-0AA0 - Siemens - Molded Case Circuit Breakers
    400 Amp - 3 Pole - 600 Volt
    Siemens
    3VA5220-5EC31-0AA0 - Siemens - Molded Case Circuit Breakers
    3VA5220-5EC31-0AA0 - Siemens - Molded Case Circuit Breakers
    200 Amp - 3 Pole - 600 Volt
    Siemens
    Limited availability
    BDL26040 - Square D - Molded Case Circuit Breakers
    BDL26040 - Square D - Molded Case Circuit Breakers
    40 Amp - 2 Pole - 600 Volt
    Square D
    3VA4110-6ED34-0AA0 - Siemens - Molded Case Circuit Breakers
    3VA4110-6ED34-0AA0 - Siemens - Molded Case Circuit Breakers
    125 Amp - 3 Pole - 480 Volt
    Siemens
    3VA4120-4ED14-0AA0 - Siemens - Molded Case Circuit Breakers
    3VA4120-4ED14-0AA0 - Siemens - Molded Case Circuit Breakers
    125 Amp - 1 Pole - 277 Volt
    Siemens
    3VA4190-4ED34-0AA0 - Siemens - Molded Case Circuit Breakers
    3VA4190-4ED34-0AA0 - Siemens - Molded Case Circuit Breakers
    125 Amp - 3 Pole - 480 Volt
    Siemens
    3VA4195-4ED14-0AA0 - Siemens - Molded Case Circuit Breakers
    3VA4195-4ED14-0AA0 - Siemens - Molded Case Circuit Breakers
    15 Amp - 1 Pole - 600 Volt
    Siemens
    3VA5225-5ED31-0AA0 - Siemens - Molded Case Circuit Breakers
    3VA5225-5ED31-0AA0 - Siemens - Molded Case Circuit Breakers
    250 Amp - 3 Pole - 600 Volt
    Siemens
    PDG33P0600TFAJ - Eaton - Molded Case Circuit Breakers
    PDG33P0600TFAJ - Eaton - Molded Case Circuit Breakers
    600 Amp - 3 Pole - 600 Volt
    Eaton
    Limited availability
    CE3030B - Federal Pioneer Horizon - Molded Case Circuit Breaker
    Horizon - 30 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $600 CAD
    BQ230220 - Eaton - Molded Case Circuit Breaker
    BQ230220 - Eaton - Molded Case Circuit Breaker
    20 Amp - 2 Pole - 240 Volt
    Eaton
    BQ240220 - Eaton - Molded Case Circuit Breaker
    BQ240220 - Eaton - Molded Case Circuit Breaker
    40 Amp - 2 Pole - 240 Volt
    Eaton
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