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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
LAL361501021
LAL361501021
In Stock
From
$1,739.21
Square D
150
600
LAL36150MB
LAL36150MB
In Stock
From
$2,796.34
Square D
150
600
LAL36200
LAL36200
In Stock
From
$1,620.44
Square D
200
600
LAL362251021
LAL362251021
In Stock
From
$1,913.00
Square D
225
600
LAL362501021
LAL362501021
In Stock
From
$3,189.45
Square D
250
600
LAL36250MB
LAL36250MB
In Stock
From
$1,842.86
Square D
250
600
LAL363001021
LAL363001021
In Stock
From
$4,153.42
Square D
300
600
LAL363001027
LAL363001027
In Stock
From
$822.09
Square D
300
600
LAL363001616
LAL363001616
In Stock
From
$2,235.18
Square D
300
600
LAL36300MB
LAL36300MB
In Stock
From
$1,340.11
Square D
300
600
LAL36300V
LAL36300V
In Stock
From
$2,235.18
Square D
300
600
LAL363501021
LAL363501021
In Stock
From
$2,023.98
Square D
350
600
LAL36350MB
LAL36350MB
In Stock
From
$1,274.05
Square D
350
600
LAL364001212
LAL364001212
In Stock
From
$2,051.99
Square D
400
600
LAL364001386
LAL364001386
In Stock
From
$1,484.21
Square D
400
600
LAL3640022M
LAL3640022M
In Stock
From
$756.41
Square D
400
600
LAL3640028M
LAL3640028M
In Stock
From
$1,561.06
Schneider Electric
400
600
LAL36400V
LAL36400V
In Stock
From
$2,051.99
Square D
400
600
LAM3400
LAM3400
In Stock
From
$1,877.01
Westinghouse
400
600
LAP26300MB
LAP26300MB
In Stock
From
$989.63
Square D
300
600
LAP26400
LAP26400
In Stock
From
$1,815.04
Square D
400
600
LAP26400MT
LAP26400MT
In Stock
From
$1,218.38
Square D
400
600
LAP36125MB
LAP36125MB
In Stock
From
$2,140.22
Square D
125
600
LAP36150MB
LAP36150MB
In Stock
From
$1,215.77
Square D
150
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.