Molded Case Breakers

7536 products

    Shop our wide selection molded case (MCCB) circuit breakers. 
    7536 products
    QGA32125 - Square D - Molded Case Circuit Breaker
    QGA32125 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 125 Amp - 3 Pole - 240 Volt
    Schneider Electric
    QDA32150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 240 Volt
    Schneider Electric
    QDA32125 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 125 Amp - 3 Pole - 240 Volt
    Schneider Electric
    QBL32175 - Square D 175 Amp 3 Pole 240 Volt Thermal Magnetic Molded Case Circuit Breaker
    QBL32175 - Square D - Molded Case Circuit Breaker
    Feed_thru - 175 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Sale
    QBA32125 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 125 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Save $167 CAD
    Sale
    LLA36400U33X - Square D 400 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LLA36400U33X - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $5,048 CAD
    Sale
    LA36400 - Square D - Molded Case Circuit Breaker
    LA36400 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 400 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $3,800 CAD
    Sale
    HLL36015 - Square D - Molded Case Circuit Breaker
    HLL36015 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 15 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $890 CAD
    Sale
    HLA36125 - Square D - Molded Case Circuit Breaker
    HLA36125 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 125 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $2,100 CAD
    Sale
    HLA36070 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 70 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,040 CAD
    Sale
    FAL36025 - Square D 25 Amp 3 Pole 600 Volt Lug Molded Case Circuit Breaker
    FAL36025 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 25 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $280 CAD
    Sale
    FA36090 - Square D 90 Amp 3 Pole 600 Volt Plug-In Molded Case Circuit Breaker
    FA36090 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 90 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,293 CAD
    EDB34035 - Square D 35 Amp 3 Pole 480 Volt Bolt-On Molded Case Circuit Breaker
    EDB34035 - Square D - Molded Case Circuit Breaker
    Bolt-On - 35 Amp - 3 Pole - 480 Volt
    Schneider Electric
    Sale
    EDB26100 - Square D 100 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EDB26100 - Square D - Molded Case Circuit Breaker
    Bolt-On - 100 Amp - 2 Pole - 600 Volt
    Schneider Electric
    Save $169 CAD
    Limited availability
    EDB26030 - Square D 30 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EDB26030 - Square D - Molded Case Circuit Breaker
    Bolt-On - 30 Amp - 2 Pole - 600 Volt
    Schneider Electric
    Save $499 CAD
    EDB24080 - Square D 80 Amp 2 Pole 480 Volt Bolt-On Molded Case Circuit Breaker
    EDB24080 - Square D - Molded Case Circuit Breaker
    Bolt-On - 80 Amp - 2 Pole - 480 Volt
    Schneider Electric
    EDB24050 - Square D 50 Amp 2 Pole 480 Volt Bolt-On Molded Case Circuit Breaker
    EDB24050 - Square D - Molded Case Circuit Breaker
    Bolt-On - 50 Amp - 2 Pole - 480 Volt
    Schneider Electric
    Sale
    EDB16030 - Square D 30 Amp 1 Pole 600 Volt Bolt-On Molded Case Circuit Breaker
    EDB16030 - Square D - Molded Case Circuit Breaker
    Bolt-On - 30 Amp - 1 Pole - 347 Volt
    Schneider Electric
    Save $86 CAD
    Sale
    HJL36040 - Square D - Molded Case Circuit Breaker
    HJL36040 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 40 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $350 CAD
    HJA36070 - Square D 70 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HJA36070 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 70 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Sale
    HJA36025 - Square D 25 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HJA36025 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 25 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $350 CAD
    Sale
    HGL36125 - Square D 125 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGL36125 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 125 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $820 CAD
    Sale
    HGL36110 - Square D 110 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGL36110 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 110 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $760 CAD
    Sale
    HGL36100 - Square D 100 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGL36100 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 100 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $210 CAD
    Sale
    HGL36030 - Square D 30 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGL36030 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 30 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $360 CAD
    Sale
    HGA36060 - Square D 60 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGA36060 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 60 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $210 CAD
    Sale
    HGA36020 - Square D 20 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    HGA36020 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 20 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $210 CAD
    Sale
    JJA36150 - Square D - Molded Case Circuit Breaker
    JJA36150 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 150 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $630 CAD
    Sale
    JGL36250 - Square D - Molded Case Circuit Breaker
    JGL36250 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 250 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $590 CAD
    Sale
    JLA36250
    JLA36175 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 175 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $700 CAD
    Sale
    QDL32225 - Square D - Molded Case Circuit Breaker
    QDL32225 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 225 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Save $123 CAD
    QDL32175 - Square D 175 Amp 3 Pole 240 Volt PowerPact Q Molded Case Circuit Breaker
    QDL32175 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 175 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Sale
    EJB36020 - Square D 20 Amp 3 Pole 600 Volt Bolt-On Circuit Molded Case Breaker
    EJB36020 - Square D 20 Amp 3 Pole 600 Volt Bolt-On Circuit Molded Case Breaker
    EJB36020 - Square D - Molded Case Circuit Breaker
    Bolt-On - 20 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $750 CAD
    Limited availability
    ABB XT1NU3125AFF000XXX - image 3
    XT1NU3125AFF000XXX - ABB - Molded Case Circuit Breaker
    ABB
    XT1NU3040AFF000XXX - ABB - Molded Case Circuit Breaker
    ABB
    XT1NU3030AYD000XXX - ABB - Molded Case Circuit Breaker
    ABB
    3VA6110-6HL31-0AA0 - Siemens - Molded Case Circuit Breakers
    3VA6110-6HL31-0AA0 - Siemens - Molded Case Circuit Breakers
    100 Amp - 3 Pole - 600 Volt
    Siemens
    3VA5220-5ED31-0AA0 - Siemens - Molded Case Circuit Breakers
    3VA5220-5ED31-0AA0 - Siemens - Molded Case Circuit Breakers
    200 Amp - 3 Pole - 600 Volt
    Siemens
    3VA5120-6ED31-0AA0 - Siemens - Molded Case Circuit Breakers
    3VA5120-6ED31-0AA0 - Siemens - Molded Case Circuit Breakers
    20 Amp - 3 Pole - 600 Volt
    Siemens
    QO31001021 - Square D - Molded Case Circuit Breakers
    QO31001021 - Square D - Molded Case Circuit Breakers
    100 Amp - 3 Pole - 240 Volt
    Square D
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