Circuit Breakers

78 products

    Shop our wide selection of Siemens, GE, Eaton Cutler-Hammer, Square D circuit breakers and more.
    78 products
    HKD3300C - Eaton Molded Case Circuit Breaker
    HKD3300C - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    HKD3300W - Eaton Molded Case Circuit Breaker
    HKD3300W - Eaton - Molded Case Circuit Breaker
    Bolt-On - 300 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    TJK636300 - GE - Molded Case Circuit Breaker
    TJK636300 - GE - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    GE
    Sale
    TJK436300 - GE - Molded Case Circuit Breaker
    TJK436300 - GE - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    GE
    Save $3,690.01 CAD
    Sale
    TJD432300 - GE - Molded Case Circuit Breaker
    TJD432300 - GE - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 240 Volt
    GE
    Save $2,186.01 CAD
    TJD422300 - GE - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 2 Pole - 240 Volt
    GE
    THJK436300 - GE - Molded Case Circuit Breaker
    THJK436300 - GE - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    GE
    TJK436300WL - General Electric 300 Amp 3 Pole 600 Volt Thermal Magnetic Circuit Breaker
    TJK436300WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    GE
    JXD63B300L - Siemens 300 Amp 3 Pole 600 Volt Feed Thru Molded Case Circuit Breaker
    JXD63B300L - Siemens - 300 Amp Molded Case Circuit Breaker
    Bolt-In - 300 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Sale
    JXD22B300 - Siemens - 300 Amp Molded Case Circuit Breaker
    Bolt-In - 300 Amp - 2 Pole - 240 Volt
    Siemens/ITE
    Save $2,017.01 CAD
    Sale
    NJG3B300 - Square D - Molded Case Circuit Breaker
    Bolt On - 300 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $330 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
    MDL3300 - Eaton - Molded Case Circuit Breaker
    MDL3300 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    KDB3300 - Eaton - Molded Case Circuit Breaker
    KDB3300 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    TJD432300WL - GE 300 Amp 3 Pole 240 Volt Molded Case Circuit Breaker
    TJD432300WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 240 Volt
    GE
    TJK636300WL - GE 300 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    TJK636300WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    GE
    LGH3300FAG - Eaton - Molded Case Circuit Breaker
    LGH3300FAG - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    MT3300T - Eaton - Circuit Breakers
    MT3300T - Eaton - Circuit Breakers
    3 Pole - 600 Volt
    Eaton Cutler-Hammer
    SHJD69300NGT - Siemens - Molded Case Circuit Breaker
    SHJD69300NGT - Siemens - Molded Case Circuit Breaker
    Bolt-On - 300 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    THJK436300WL - General Electric 300 Amp 3 Pole 600 Volt Thermal Magnetic Circuit Breaker
    THJK436300WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    GE
    LD3300 - Eaton - Molded Case Circuit Breaker
    LD3300 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    KDC3300 - Eaton - Molded Case Circuit Breaker
    KDC3300 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    Eaton Cutler-Hammer
    DK3300W - Eaton - Molded Case Circuit Breaker
    DK3300W - Eaton - Molded Case Circuit Breaker
    Bolt-On - 300 Amp - 3 Pole - 2 Volt
    Eaton Cutler-Hammer
    SJD69300NGT - Siemens - Molded Case Circuit Breaker
    SJD69300NGT - Siemens - Molded Case Circuit Breaker
    Bolt-On - 300 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    JXD63B300H - Siemens - Molded Case Circuit Breaker
    Bolt-On - 300 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    Sold Out
    JD63B300 - Siemens - Molded Case Circuit Breaker
    JD63B300 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 300 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    JXD23B300 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 300 Amp - 3 Pole - 240 Volt
    Siemens/ITE
    HJXD63B300 - Siemens - Molded Case Circuit Breaker
    Bolt-on - 300 Amp - 3 Pole - 600 Volt
    Siemens/ITE
    CJD63B300 - Siemens - Molded Case Circuit Breaker
    Bolt-On - 300 Amp - 3 Pole - 600 Volt
    Siemens / ITE
    TJJ436300WL - GE 300 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    TJJ436300WL - GE - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    GE
    DK3300 - Eaton - Molded Case Circuit Breaker
    DK3300 - Eaton - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 240 Volt
    Eaton Cutler-Hammer
    Sold Out
    Q4L3300 - Square D 300 Amp 3 Pole 240 Volt Thermal Magnetic Molded Case Circuit Breaker
    Q4L3300 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 240 Volt
    Schneider Electric
    Sale
    MJL36300 - Square D 300 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    MJL36300 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,167 CAD
    Sale
    MJA36300 - Square D 300 Amp 3 Pole 600 Volt Plug-In Molded Case Circuit Breaker
    MJA36300 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 300 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $486 CAD
    MGL36300 - Square D 300 Amp 3 Pole 600 Volt Solid State Molded Case Circuit Breaker
    MGL36300 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Sale
    MGA36300 - Square D 300 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    MGA36300 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 300 Amp - 3 Pole - 600 Volt
    Schneider Electric
    Save $1,740 CAD
    LCL36300 - Square D 300 Amp 3 Pole 600 Volt Molded Case Circuit Breaker
    LCL36300 - Square D - Molded Case Circuit Breaker
    Feed-Thru - 300 Amp - 3 Pole - 600 Volt
    Schneider Electric
    LC36300 - Square D - Molded Case Circuit Breaker
    LC36300 - Square D - Molded Case Circuit Breaker
    I-Line Plug-In - 300 Amp - 3 Pole - 600 Volt
    Schneider Electric
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