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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
LBB2225W
LBB2225W
Limited Stock
From
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Westinghouse
225
600
LBB2250
LBB2250
Limited Stock
From
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Westinghouse
250
600
LBB2250A
LBB2250A
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Westinghouse
250
600
LBB2250S
LBB2250S
Limited Stock
From
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Westinghouse
250
600
LBB2250SA
LBB2250SA
Limited Stock
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Westinghouse
250
600
LBB2250SW
LBB2250SW
Limited Stock
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Westinghouse
250
600
LBB2250W
LBB2250W
Limited Stock
From
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Westinghouse
250
600
LBB23000M
LBB23000M
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Westinghouse
400
600
LBB23000MW
LBB23000MW
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Westinghouse
400
600
LBB23000SMW
LBB23000SMW
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Westinghouse
400
600
LBB2300A
LBB2300A
Limited Stock
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Westinghouse
300
600
LBB2300S
LBB2300S
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Westinghouse
300
600
LBB2300SA
LBB2300SA
Limited Stock
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Westinghouse
300
600
LBB2300SW
LBB2300SW
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Westinghouse
300
600
LBB2350
LBB2350
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Westinghouse
350
600
LBB2350A
LBB2350A
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Westinghouse
350
600
LBB2350S
LBB2350S
Limited Stock
From
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Westinghouse
350
600
LBB2350SA
LBB2350SA
Limited Stock
From
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Westinghouse
350
600
LBB2350SW
LBB2350SW
Limited Stock
From
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Westinghouse
350
600
LBB2350W
LBB2350W
Limited Stock
From
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Westinghouse
350
600
LBB2400
LBB2400
Limited Stock
From
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Westinghouse
400
600
LBB24000M
LBB24000M
Limited Stock
From
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Westinghouse
400
600
LBB24000MW
LBB24000MW
Limited Stock
From
Get Price
Westinghouse
400
600
LBB24000SMW
LBB24000SMW
Limited Stock
From
Get Price
Westinghouse
400
600
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.