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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.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
LAB2600WSK
LAB2600WSK
In Stock
From
$727.62
Westinghouse
600
600
LAB2700MW
LAB2700MW
In Stock
From
Get Price
Westinghouse
400
600
LAB2700SMW
LAB2700SMW
In Stock
From
Get Price
Westinghouse
400
600
LAB31250MW
LAB31250MW
In Stock
From
$1,822.20
Westinghouse
400
600
LAB31250SMW
LAB31250SMW
In Stock
From
$1,822.20
Westinghouse
400
600
LAB3125S
LAB3125S
In Stock
From
Get Price
Westinghouse
125
600
LAB3125SW
LAB3125SW
In Stock
From
Get Price
Westinghouse
125
600
LAB3125W
LAB3125W
In Stock
From
Get Price
Westinghouse
125
600
LAB3150
LAB3150
In Stock
From
$907.37
Westinghouse
150
600
LAB31500MW
LAB31500MW
In Stock
From
$1,822.20
Westinghouse
400
600
LAB31500SMW
LAB31500SMW
In Stock
From
$1,822.20
Westinghouse
400
600
LAB3150S
LAB3150S
In Stock
From
$907.37
Westinghouse
150
600
LAB3150SW
LAB3150SW
In Stock
From
$907.37
Westinghouse
150
600
LAB3175
LAB3175
In Stock
From
$83.76
Westinghouse
175
600
LAB31750MW
LAB31750MW
In Stock
From
$1,822.20
Westinghouse
400
600
LAB31750SMW
LAB31750SMW
In Stock
From
$1,822.20
Westinghouse
400
600
LAB3175S
LAB3175S
In Stock
From
$941.24
Westinghouse
175
600
LAB3175SW
LAB3175SW
In Stock
From
$941.24
Westinghouse
175
600
LAB3175W
LAB3175W
In Stock
From
$941.24
Westinghouse
175
600
LAB3200
LAB3200
In Stock
From
$655.55
Westinghouse
200
600
LAB3200S
LAB3200S
In Stock
From
Get Price
Westinghouse
200
600
LAB3200SW
LAB3200SW
In Stock
From
Get Price
Westinghouse
200
600
LAB3200W
LAB3200W
In Stock
From
Get Price
Westinghouse
200
600
LAB3225
LAB3225
Limited Stock
From
Get Price
Westinghouse
225
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.