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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
QCB60
QCB60
Limited Stock
From
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Zinsco
60
240
QCB70CP
QCB70CP
Limited Stock
From
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Zinsco
70
240
QCB80
QCB80
Limited Stock
From
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Zinsco
80
240
QCB80CP
QCB80CP
Limited Stock
From
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Zinsco
80
240
QCB90CP
QCB90CP
Limited Stock
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Zinsco
90
240
QFB200
QFB200
Limited Stock
From
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Challenger
200
240
QFB225
QFB225
Limited Stock
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Sylvania
225
240
QFB24200-2
QFB24200-2
Limited Stock
From
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Challenger
200
240
QFP100-2P
QFP100-2P
Limited Stock
From
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Challenger
100
240
QFP200-2T
QFP200-2T
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From
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Sylvania
200
240
QFP2200K
QFP2200K
Limited Stock
From
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Zinsco
200
240
QFP2200T
QFP2200T
Limited Stock
From
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Zinsco
200
240
QFP24-150-2T
QFP24-150-2T
Limited Stock
From
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Challenger
150
240
QFP24-150-3
QFP24-150-3
Limited Stock
From
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Challenger
150
240
QFP24-175-2T
QFP24-175-2T
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From
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Zinsco
175
240
QFP24-175-3
QFP24-175-3
Limited Stock
From
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Zinsco
175
240
QFP24-175-3-TK
QFP24-175-3-TK
Limited Stock
From
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Sylvania
175
240
QFP24-200-2T
QFP24-200-2T
Limited Stock
From
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Zinsco
200
240
QFP24-200-3
QFP24-200-3
Limited Stock
From
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Zinsco
200
240
QFP24-200-3-TK
QFP24-200-3-TK
Limited Stock
From
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Sylvania
200
240
QL2424350
QL2424350
Limited Stock
From
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Zinsco
350
240
QL2424500
QL2424500
Limited Stock
From
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Zinsco
500
240
QL2424600
QL2424600
Limited Stock
From
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Zinsco
600
240
QL2430250
QL2430250
Limited Stock
From
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Zinsco
250
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.