Molded Case Breakers

7536 products

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

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QO290VH - Square D - Molded Case Circuit Breakers

QO290VH - Square D - Molded Case Circuit Breakers

90 Amp - 2 Pole - 120 Volt

LJA36600U31XYP - Square D - Circuit Breakers

LJA36600U31XYP - Square D - Circuit Breakers

600 Amp - 3 Pole - 600 Volt

3VA4112-4ED34-0AA0 - Siemens - Molded Case Circuit Breakers

3VA4112-4ED34-0AA0 - Siemens - Molded Case Circuit Breakers

125 Amp - 3 Pole - 480 Volt

3VA5160-4EC31-0AA0 - Siemens - Molded Case Circuit Breakers

3VA5160-4EC31-0AA0 - Siemens - Molded Case Circuit Breakers

60 Amp - 3 Pole - 600 Volt

3VA5160-5ED31-0AA0 - Siemens - Molded Case Circuit Breakers

3VA5160-5ED31-0AA0 - Siemens - Molded Case Circuit Breakers

60 Amp - 3 Pole - 600 Volt

B320HH00S01 - Siemens - Molded Case Circuit Breakers

B320HH00S01 - Siemens - Molded Case Circuit Breakers

20 Amp - 3 Pole - 240 Volt

PDG22F0020TFFJ - Eaton - Molded Case Circuit Breakers

PDG22F0020TFFJ - Eaton - Molded Case Circuit Breakers

20 Amp - 2 Pole - 600 Volt

QCF1020T - Eaton - Molded Case Circuit Breakers

QCF1020T - Eaton - Molded Case Circuit Breakers

20 Amp - 1 Pole - 240 Volt

3VA4160-4ED34-0AA0 - Siemens - Molded Case Circuit Breakers

3VA4160-4ED34-0AA0 - Siemens - Molded Case Circuit Breakers

125 Amp - 3 Pole - 480 Volt

3VA4110-4ED24-0AA0 - Siemens - Molded Case Circuit Breakers

3VA4110-4ED24-0AA0 - Siemens - Molded Case Circuit Breakers

125 Amp - 2 Pole - 480 Volt

140MT-C3E-B16 - Allen-Bradley - Molded Case Circuit Breakers

140MT-C3E-B16 - Allen-Bradley - Molded Case Circuit Breakers

BQC230240 - Eaton - Molded Case Circuit Breaker

BQC230240 - Eaton - Molded Case Circuit Breaker

40 Amp - 2 Pole - 240 Volt

CLGF120 - Eaton - Molded Case Circuit Breakers

CLGF120 - Eaton - Molded Case Circuit Breakers

20 Amp - 1 Pole - 120 Volt

3VA5212-6EC31-0AA0- Siemens - Molded Case Circuit Breakers

3VA5212-6EC31-0AA0- Siemens - Molded Case Circuit Breakers

125 Amp - 3 Pole - 600 Volt

3VA4140-5ED34-0AA0 - Siemens - Molded Case Circuit Breakers

3VA4140-5ED34-0AA0 - Siemens - Molded Case Circuit Breakers

40 Amp - 3 Pole - 600 Volt

3VA4180-6ED34-0AA0 - Siemens - Molded Case Circuit Breakers

3VA4180-6ED34-0AA0 - Siemens - Molded Case Circuit Breakers

80 Amp - 3 Pole - 600 Volt

THQL1115PDF - General Electrics - Molded Case Circuit Breaker

Plug-In - 15 Amp - 1 Pole - 120 Volt

General Electric

PDG23P0125TFFJ - Eaton - Molded Case Circuit Breakers

PDG23P0125TFFJ - Eaton - Molded Case Circuit Breakers

PDG23F0030TFFL - Eaton - Molded Case Circuit Breakers

PDG23F0030TFFL - Eaton - Molded Case Circuit Breakers

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

Limited availability

PDG23F0225TFFJ - Eaton - Molded Case Circuit Breakers

PDG23F0225TFFJ - Eaton - Molded Case Circuit Breakers

Feed-Thru - 225 Amp - 3 Pole - 600 Volt

CHF260 - Eaton - Molded Case Circuit Breaker

3VA4120-6ED34-0AA0 - Siemens - Molded Case Circuit Breaker

3VA4120-6ED34-0AA0 - Siemens - Molded Case Circuit Breaker

3VA4120-6ED34-0AA0 - Siemens - Molded Case Circuit Breaker

THQMV200E - General Electrics - Molded Case Circuit Breakers

THQMV200E - General Electric - Molded Case Circuit Breakers

Plug - In - 200 Amp - 2 Pole - 240 Volt

General Electric

NGC308032EC - Eaton - Molded Case Circuit Breaker

Bolt-On - 800 Amp - 3 Pole - 600 Volt

Eaton Cutler-Hammer

Save $3,100 CAD

QO330VH - Square D - Molded Case Circuit Breakers

QO330VH - Square D - Molded Case Circuit Breakers

Plug-In - 30 Amp - 3 Pole - 240 Volt

QO120AFI - Square D - Molded Case Circuit Breakers

QO120AFI - Square D - Molded Case Circuit Breakers

Plug-In - 20 Amp - 1 Pole - 120 Volt

BDL36050 - Square D
- Molded Case
Circuit Breakers

BDL36050 - Square D - Molded Case Circuit Breakers

Feed-Thru - 50 Amp - 3 Pole - 600 Volt

BDL36015 - Square D - Molded Case Circuit Breakers

BDL36015 - Square D - Molded Case Circuit Breakers

Feed-Thru - 15 Amp - 3 Pole - 600 Volt

BDA34020Y - Square D - Molded Case Circuit Breakers

BDA34020Y - Square D - Molded Case Circuit Breakers

I-Line Style Plug-In - 20 Amp - 3 Pole - 480 Volt

M9F42320 - Square D - Molded Case Circuit Breaker

M9F42320 - Square D - Molded Case Circuit Breaker

Limited availability

BQ2B010 - Siemens - Molded Case Circuit Breaker

BQ2B010 - Siemens - Molded Case Circuit Breaker

Amp - 2 Pole - 120V

QOB2151021 - Square D - Molded Case Circuit Breakers

QOB2151021 - Square D - Molded Case Circuit Breakers

Bolt-On - 15 Amp - 2 Pole - 120 V

Schneider Electric

QOB1201021 - Square D - Molded Case
Circuit Breakers

QOB1201021 - Square D - Molded Case Circuit Breakers

Bolt-On - 20 Amp - 1 Pole - 120 V

Schneider Electric

QHB115 - Square D - Molded Case Circuit Breakers

QHB115 - Square D - Molded Case Circuit Breakers

Bolt-On - 15 Amp - 1 Pole - 120 V

Schneider Electric

LLL36400U31X - Square D - Molded Case Circuit Breakers

LLL36400U31X - Square D - Molded Case Circuit Breakers

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

Schneider Electric

LDA36250U31X - Square D - Molded Case Circuit Breakers

LDA36250U31X - Square D - Molded Case Circuit Breakers

I-Line Style Plug-In - 250 Amp - 3 Pole - 600 V

Schneider Electric

JDA36250U33X - Square D - Molded Case
Circuit Breakers

JDA36250U33X - Square D - Molded Case Circuit Breakers

I-Line Style Plug-In - 250 Amp - 3 Pole - 600 V

Schneider Electric

Limited availability

FAL26090 - Square D - Molded Case Circuit Breakers

FAL26090 - Square D - Molded Case Circuit Breakers

Feed-Thru - 90 Amp - 2 Pole - 600 V

Schneider Electric

FA32100 - Square D - Molded Case Circuit Breakers

FA32100 - Square D - Molded Case Circuit Breakers

I-Line Style Plug-In - 100 Amp - 3 Pole - 240 V

Schneider Electric

THQMV200WL - General Electrics - Molded Case Circuit Breakers

THQMV200WL - General Electrics - Molded Case Circuit Breakers

Plug-In - 200 Amp - 2 Pole - 120 V

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Molded Case Breakers