Molded Case Breakers

7247 products

Shop our wide selection molded case (MCCB) circuit breakers.

7247 products

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FH36060 - Square D 60 Amp 3 Pole 600 Volt Molded Case Circuit Breaker

FH36060 - Square D - Molded Case Circuit Breaker

I-Line Plug-In - 60 Amp - 3 Pole - 600 Volt

Schneider Electric

HFDE308036 - Eaton - Molded Case Circuit Breaker

HFDE308036 - Eaton - Molded Case Circuit Breaker

Bolt-On - 80 Amp - 3 Pole - 480 Volt

Eaton Cutler-Hammer

Save $2,416 CAD

Limited availability

QGA221004 - Square D 100 Amp 2 Pole 240 Volt Molded Case Circuit Breaker

QGA221004 - Square D - Molded Case Circuit Breaker

I-Line Plug-In - 100 Amp - 2 Pole - 240 Volt

Schneider Electric

NGC312032EC - Eaton - Molded Case Circuit Breaker

NGC312032EC - Eaton - Molded Case Circuit Breaker

Bolt-On - 1200 Amp - 3 Pole - 600 Volt

Eaton Cutler-Hammer

Save $4,600 CAD

LGH3630NN - Eaton - Molded Case Circuit Breaker

LGH3630NN - Eaton - Molded Case Circuit Breaker

Bolt-On - 630 Amp - 3 Pole - 600 Volt

Eaton Cutler-Hammer

KAL36125 - Square D 125 Amp 3 Pole 600 Volt Molded Case Circuit Breaker

KAL36125 - Square D - Molded Case Circuit Breakers

Feed Thru - 125 Amp - 3 Pole - 600 Volt

Schneider Electric

JGA36250U31X - Square D 250 Amp 3 Pole 600 Volt Molded Case Circuit Breaker

JGA36250U31X - Square D - Molded Case Circuit Breakers

I-Line Plug-In - 250 Amp - 3 Pole - 600 Volt

Schneider Electric

Save $2,106 CAD

JDL36250U31X - Square D 250 Amp 3 Pole 600 Volt Molded Case Circuit Breaker

JDL36250U31X - Square D - Molded Case Circuit Breakers

Feed Thru - 250 Amp - 3 Pole - 600 Volt

Schneider Electric

HQR23B125 - Siemens - Molded Case Circuit Breaker

HQR23B125 - Siemens - Molded Case Circuit Breaker

Bolt-On - 125 Amp - 3 Pole - 240 Volt

HMDL3700Y - Eaton Molded Case Circuit Breakers

HMDL3700 - Eaton - Molded Case Circuit Breaker

Feed-Thru - 700 Amp - 3 Pole - 600 Volt

Eaton Cutler-Hammer

Save $1,942 CAD

HMCP150U4 - Eaton - Molded Case Circuit Breaker

HMCP150U4 - Eaton - Molded Case Circuit Breaker

Feed-Thru - 150 Amp - 3 Pole - 600 Volt

Eaton Cutler-Hammer

EGB34020SA - Square D 20 Amp 3 Pole 480 Volt Molded Case Circuit Breaker

EGB34020SA - Square D - Molded Case Circuit Breakers

Bolt On - 20 Amp - 3 Pole - 480 Volt

Schneider Electric

HFD2125 - Eaton - Molded Case Circuit Breaker

HFD2125 - Eaton - Molded Case Circuit Breaker

Bolt-On - 125 Amp - 2 Pole - 600 Volt

Eaton Cutler-Hammer

EDB34060SA - Square D 60 Amp 3 Pole 480 Volt Molded Case Circuit Breaker

EDB34060SA - Square D - Molded Case Circuit Breakers

Bolt On - 60 Amp - 3 Pole - 480 Volt

Schneider Electric

LGH3600FAG - Eaton - Molded Case Circuit Breaker

LGH3600FAG - Eaton - Molded Case Circuit Breaker

Feed-Thru - 600 Amp - 3 Pole - 600 Volt

Eaton Cutler-Hammer

Save $5,492 CAD

LGH3400FAG - Eaton - Molded Case Circuit Breaker

LGH3400FAG - Eaton - Molded Case Circuit Breaker

Feed-Thru - 400 Amp - 3 Pole - 600 Volt

Eaton Cutler-Hammer

Save $4,971 CAD

LGE3630NN - Eaton - Molded Case Circuit Breaker

LGE3630NN - Eaton - Molded Case Circuit Breaker

Bolt-On - 630 Amp - 3 Pole - 3 Volt

Eaton Cutler-Hammer

Save $1,637 CAD

HLD2600F - Eaton - Molded Case Circuit Breaker

HLD2600F - Eaton - Frame

Bolt-On - 600 Amp - 2 Pole - 600 Volt

Eaton Cutler-Hammer

Save $1,106 CAD

Limited availability

EGB26125 - Square D 125 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker

EGB26125 - Square D 125 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker

EGB26125 - Square D - Molded Case Circuit Breaker

Bolt-On - 125 Amp - 2 Pole - 480 Volt

Schneider Electric

QO320GFI - Square D - Molded Case Circuit Breaker

Plug-In - 20 Amp - 3 Pole - 240 Volt

Schneider Electric

Save $70.01 CAD

ELC3100R - Eaton - Circuit Breaker Parts And Accessories

ELC3100R - Eaton - Circuit Breaker Part

Eaton Cutler-Hammer

ED43B070 - Siemens - Molded Case Circuit Breaker

ED43B070 - Siemens - Molded Case Circuit Breaker

ED43B070 - Siemens - Molded Case Circuit Breaker

Bolt-On - 70 Amp - 3 Pole - 480 Volt

NGG3B030L - Siemens - Molded Case Circuit Breaker

NGG3B030L - Siemens - Molded Case Circuit Breaker

Feed-Thru - 30 Amp - 3 Pole - 600 Volt

TEYL3100B - GE 100 Amp 3 Pole 480 Volt Bolt-On Molded Case Circuit Breaker

TEYL3100B - GE - Molded Case Circuit Breaker

Bolt-On - 100 Amp - 3 Pole - 480 Volt

BBKEB32 - Siemens - Molded Case Circuit Breaker

BBKEB32 - Siemens - Molded Case Circuit Breaker

100 Amp - 240 Volt

NGG3B080L - Siemens - Molded Case Circuit Breaker

NGG3B080L - Siemens - Molded Case Circuit Breaker

Feed-Thru - 80 Amp - 3 Pole - 600 Volt

NGG3B040L - Siemens - Molded Case Circuit Breaker

NGG3B040L - Siemens - Molded Case Circuit Breaker

Feed-Thru - 40 Amp - 3 Pole - 600 Volt

EGB3015FFG - Eaton - Molded Case Circuit Breaker

EGB3015FFG - Eaton - Molded Case Circuit Breaker

Feed-Thru - 15 Amp - 3 Pole - 480 Volt

Eaton Cutler-Hammer

FDB1020L - Eaton Cutler-Hammer 20 Amp 1 Pole 347 Volt Molded Case Circuit Breaker

FDB1020L - Eaton - 20 Amp Molded Case Circuit Breaker

Bolt-On - 20 Amp - 1 Pole - 347 Volt

Eaton Cutler-Hammer

HHJXD63B300 - Siemens - Molded Case Circuit Breaker

HHJXD63B300 - Siemens - Molded Case Circuit Breaker

Bolt-On - 300 Amp - 3 Pole - 600 Volt

QO315GFI - Square D 15 Amp 3 Pole 240 Volt Plug-In Molded Case Circuit Breaker

QO315GFI - Square D - Molded Case Circuit Breaker

Plug-In - 15 Amp - 3 Pole - 240 Volt

Schneider Electric

QDA220701 - Square D 70 Amp 2 Pole 240 Volt Plug-In Molded Case Circuit Breaker

QDA220701 - Square D - Molded Case Circuit Breaker

I-Line Plug-In - 70 Amp - 2 Pole - 240 Volt

Schneider Electric

BGL36100 - Square D 100 Amp 3 Pole 600 Volt Molded Case Circuit Breaker

BGL36100 - Square D - Molded Case Circuit Breaker

Feed-Thru - 100 Amp - 3 Pole - 600 Volt

Schneider Electric

BDL26015 - Square D 15 Amp 2 Pole 600 Volt Molded Case Circuit Breaker

BDL26015 - Square D - Molded Case Circuit Breaker

Feed-Thru - 15 Amp - 2 Pole - 600 Volt

Schneider Electric

HFDE315021 - Eaton - Molded Case Circuit Breaker

HFDE315021 - Eaton - Molded Case Circuit Breaker

Eaton Cutler-Hammer

BRN130EP - Eaton Cutler-Hammer 30 Amp 1 Pole 120 Volt Plug-In Molded Case Circuit Breaker

BRN130EP - Eaton - 30 Amp Molded Case Circuit Breaker

Plug-In - 30 Amp - 1 Pole - 120 Volt

Eaton Cutler-Hammer

PGL36120U44A - Square D 1200 Amp 3 Pole 600 Volt Molded Case Circuit Breaker

PGL36120U44A - Square D - Molded Case Circuit Breaker

Feed-Thru - 1200 Amp - 3 Pole - 600 Volt

Schneider Electric

Save $3,970 CAD

NGS312032E - Eaton - Molded Case Circuit Breaker

NGS312032E - Eaton - Molded Case Circuit Breaker

Bolt-On - 1200 Amp - 3 Pole - 600 Volt

Eaton Cutler-Hammer

Save $8,049 CAD

NGH312036E - Eaton - Molded Case Circuit Breaker

NGH312036E - Eaton - Molded Case Circuit Breaker

Bolt-On - 1200 Amp - 3 Pole - 600 Volt

Eaton Cutler-Hammer

Save $8,204 CAD

LGE3600FAG - Eaton - Molded Case Circuit Breaker

LGE3600FAG - Eaton - Molded Case Circuit Breaker

Feed-Thru - 600 Amp - 3 Pole - 600 Volt

Eaton Cutler-Hammer

Save $4,244 CAD

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Molded Case Breakers