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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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Part Number
PRICE
Manufacturer
Amperage
Voltage
A115LC
A115LC
Limited Stock
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Challenger
15
120
A115RC
A115RC
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Challenger
15
120
A120LC
A120LC
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Challenger
20
120
A120RC
A120RC
Limited Stock
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Challenger
20
120
BQ2C070
BQ2C070
Limited Stock
From
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Challenger
70
240
QFB125
QFB125
Limited Stock
From
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Zinsco
125
240
QFB125-2P
QFB125-2P
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Sylvania
125
240
QFB125DH
QFB125DH
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Challenger
125
240
QFB150
QFB150
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Sylvania
150
240
QFB150-2P
QFB150-2P
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Challenger
150
240
QFB150DH
QFB150DH
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Challenger
150
240
QFB175
QFB175
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Zinsco
175
240
QFB175-2
QFB175-2
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From
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Challenger
175
240
QFB175-2P
QFB175-2P
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From
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Challenger
175
240
QFB175DH
QFB175DH
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Challenger
175
240
QFB200-2P
QFB200-2P
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From
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Sylvania
200
240
QFB225
QFB225
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Sylvania
225
240
QFB225-2
QFB225-2
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From
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Zinsco
225
240
QFB225-2P
QFB225-2P
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From
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Challenger
225
240
QFB24125-2
QFB24125-2
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From
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Zinsco
125
240
QFB24225-2
QFB24225-2
Limited Stock
From
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Challenger
225
240
QFP125-2
QFP125-2
Limited Stock
From
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Zinsco
125
240
QFP125-3P
QFP125-3P
Limited Stock
From
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Zinsco
125
240
QFP150
QFP150
Limited Stock
From
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Challenger
150
240
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.