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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
LGS3600FAGC
LGS3600FAGC
In Stock
From
$4,315.49
Cutler Hammer
600
600
LGS3630AAG
LGS3630AAG
In Stock
From
$2,042.95
Cutler Hammer
630
600
LGS3630NN
LGS3630NN
In Stock
From
$3,434.04
Cutler Hammer
630
600
LH34225MC
LH34225MC
In Stock
From
$2,731.73
Square D
225
600
LH36175CBA
LH36175CBA
In Stock
From
$1,745.56
Square D
175
600
LH36225CBA
LH36225CBA
In Stock
From
$1,946.71
Square D
225
600
LH36250CBA
LH36250CBA
In Stock
From
$2,244.65
Square D
250
600
LH36300CBA
LH36300CBA
In Stock
From
$2,754.30
Square D
300
600
LH36350CBA
LH36350CBA
In Stock
From
$2,137.85
Square D
350
600
LH36400-BLACK
LH36400-BLACK
In Stock
From
$1,717.23
Square D
400
600
LH36400CBA
LH36400CBA
In Stock
From
$2,943.83
Square D
400
600
LHL36225V
LHL36225V
In Stock
From
$1,946.71
Square D
225
600
LHL362501380
LHL362501380
In Stock
From
$1,838.62
Square D
250
600
LHL36250V
LHL36250V
In Stock
From
$2,244.65
Square D
250
600
LHL36300-BLACK
LHL36300-BLACK
In Stock
From
$2,754.30
Square D
300
600
LHL363001037
LHL363001037
In Stock
From
$951.41
Square D
300
600
LHL3630026DC
LHL3630026DC
In Stock
From
$766.99
Square D
300
600
LHL36300V
LHL36300V
In Stock
From
$2,754.30
Square D
300
600
LHL364001027
LHL364001027
In Stock
From
$6,156.00
Square D
400
600
LHL364001037
LHL364001037
In Stock
From
$999.20
Square D
400
600
LHL364001287
LHL364001287
In Stock
From
$2,154.48
Square D
400
600
LHL3640030DC
LHL3640030DC
In Stock
From
$866.13
Square D
400
600
LHL3640030DC1616
LHL3640030DC1616
In Stock
From
$2,178.81
Square D
400
500
LHL3640030DC1625
LHL3640030DC1625
In Stock
From
$641.09
Square D
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.