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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
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Manufacturer
THHQL230
THHQL230
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General Electric
TMC 1 M1 100  0,5A
TMC 1 M1 100 0,5A
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Phoenix Contact
TMC 83B 40A
TMC 83B 40A
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Phoenix Contact
TMC 83C 32A
TMC 83C 32A
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Phoenix Contact
TMC-2-M1-120-10.0A
TMC-2-M1-120-10.0A
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Phoenix Contact
TS-709-15
TS-709-15
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Schurter
UMBW-1D3-10
UMBW-1D3-10
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WEG
UPG1-6673-1
UPG1-6673-1
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Sensata Technologies
UPGX11-1-64-153-01
UPGX11-1-64-153-01
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Sensata Technologies
V76110
V76110
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General Electric
V86120
V86120
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General Electric
W2225R
W2225R
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Westinghouse
W28-XQ1A-0.75
W28-XQ1A-0.75
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TE Connectivity
W31-X2M1G-2
W31-X2M1G-2
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TE Connectivity
W31X2A1G-10
W31X2A1G-10
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TE Connectivity
W33-T4B1Q-10
W33-T4B1Q-10
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TE Connectivity
W58-XB1A4A-8
W58-XB1A4A-8
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TE Connectivity
W91-X112-20
W91-X112-20
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TE Connectivity
WRS80/2
WRS80/2
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Wylex
XT1N 160 TMD 32-450 3P F
XT1N 160 TMD 32-450 3P F
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ABB
Z9-R230/SS
Z9-R230/SS
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F&G
066-29
066-29
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Legrand
066-51
066-51
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Legrand
091212004RA
091212004RA
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ABB
Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.