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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
LV429572
LV429572
In Stock
From
$1,017.16
Schneider Electric
LV429574
LV429574
Limited Stock
From
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Schneider Electric
LV429651
LV429651
Limited Stock
From
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Schneider Electric
LV430310
LV430310
In Stock
From
$959.22
Schneider Electric
LV430330
LV430330
Limited Stock
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Schneider Electric
LV430405-FN
LV430405-FN
In Stock
From
$1,920.94
Square D
LV431111
LV431111
In Stock
From
$903.04
Schneider Electric
LV431131
LV431131
In Stock
From
$1,170.62
Schneider Electric
LV431395
LV431395
In Stock
From
$984.96
Schneider Electric
LV433477
LV433477
Limited Stock
From
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Schneider Electric
LV433490
LV433490
Limited Stock
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Schneider Electric
LV433493
LV433493
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Schneider Electric
LV433510
LV433510
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Schneider Electric
LV433575
LV433575
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Schneider Electric
LV433705
LV433705
Limited Stock
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Schneider Electric
LV433706
LV433706
Limited Stock
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Schneider Electric
M2-270
M2-270
In Stock
From
$44.67
Schneider Electric
M9A26929
M9A26929
In Stock
From
$77.77
Schneider Electric
M9C01101
M9C01101
In Stock
From
$37.71
Schneider Electric
M9F12120
M9F12120
Limited Stock
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Schneider Electric
M9F12132
M9F12132
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Schneider Electric
M9F12140
M9F12140
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Schneider Electric
M9F12201
M9F12201
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Schneider Electric
M9F12340
M9F12340
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Schneider Electric
Popular Molded Case Circuit Breaker Manufacturers
Eaton
Square D
ABB
Siemens

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.