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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
MEC436LSIG
MEC436LSIG
In Stock
From
$594.60
Schneider Electric
MG18262
MG18262
In Stock
From
$75.73
Schneider Electric
MG18289
MG18289
In Stock
From
$61.09
Schneider Electric
MG18291
MG18291
In Stock
From
$422.19
Schneider Electric
MG19753
MG19753
In Stock
From
$46.42
Schneider Electric
MG20230
MG20230
In Stock
From
$102.56
Schneider Electric
MG20235
MG20235
In Stock
From
$113.10
Schneider Electric
MG20420
MG20420
Limited Stock
From
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Schneider Electric
MG24253
MG24253
Limited Stock
From
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Schneider Electric
MG24373
MG24373
Limited Stock
From
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Schneider Electric
MG24598
MG24598
In Stock
From
$31.19
Schneider Electric
MG24599
MG24599
In Stock
From
$29.04
Schneider Electric
MG24608
MG24608
In Stock
From
$91.32
Schneider Electric
MG24984
MG24984
Limited Stock
From
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Schneider Electric
MG24990
MG24990
Limited Stock
From
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Schneider Electric
MGN26380
MGN26380
In Stock
From
$63.63
Schneider Electric
MGN61526
MGN61526
Limited Stock
From
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Schneider Electric
MGN61533
MGN61533
In Stock
From
$242.74
Schneider Electric
MGN61650
MGN61650
Limited Stock
From
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Schneider Electric
MGP0301L2
MGP0301L2
Limited Stock
From
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Schneider Electric
MGP0402L1N
MGP0402L1N
Limited Stock
From
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Schneider Electric
MGP0803
MGP0803
Limited Stock
From
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Schneider Electric
MGP1001L1
MGP1001L1
Limited Stock
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Schneider Electric
MGP1002L1N
MGP1002L1N
Limited Stock
From
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Schneider Electric
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.