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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
LAB21250SMW
LAB21250SMW
In Stock
From
Get Price
Westinghouse
400
600
LAB2125S
LAB2125S
In Stock
From
$702.05
Westinghouse
125
600
LAB2125SW
LAB2125SW
In Stock
From
$702.05
Westinghouse
125
600
LAB2125W
LAB2125W
In Stock
From
$702.05
Westinghouse
125
600
LAB2150
LAB2150
In Stock
From
$805.96
Westinghouse
150
600
LAB21500MW
LAB21500MW
In Stock
From
Get Price
Westinghouse
400
600
LAB21500SMW
LAB21500SMW
In Stock
From
Get Price
Westinghouse
400
600
LAB2150S
LAB2150S
In Stock
From
$805.96
Westinghouse
150
600
LAB2150SW
LAB2150SW
In Stock
From
$805.96
Westinghouse
150
600
LAB2150W
LAB2150W
In Stock
From
$805.96
Westinghouse
150
600
LAB2175
LAB2175
In Stock
From
$685.40
Westinghouse
175
600
LAB21750MW
LAB21750MW
In Stock
From
Get Price
Westinghouse
400
600
LAB21750SMW
LAB21750SMW
In Stock
From
Get Price
Westinghouse
400
600
LAB2175S
LAB2175S
In Stock
From
$685.40
Westinghouse
175
600
LAB2175SW
LAB2175SW
In Stock
From
$685.40
Westinghouse
175
600
LAB2175W
LAB2175W
In Stock
From
$685.40
Westinghouse
175
600
LAB2200
LAB2200
In Stock
From
$452.16
Westinghouse
200
600
LAB2200S
LAB2200S
In Stock
From
$452.16
Westinghouse
200
600
LAB2200SW
LAB2200SW
In Stock
From
$452.16
Westinghouse
200
600
LAB2200W
LAB2200W
In Stock
From
$452.16
Westinghouse
200
600
LAB2225
LAB2225
In Stock
From
$886.32
Westinghouse
225
600
LAB22250MW
LAB22250MW
In Stock
From
Get Price
Westinghouse
400
600
LAB22250SMW
LAB22250SMW
In Stock
From
Get Price
Westinghouse
400
600
LAB2225SW
LAB2225SW
In Stock
From
$886.32
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.