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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
Amperage
Voltage
LV429054
LV429054
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Schneider Electric
-
-
LV429056
LV429056
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Schneider Electric
-
-
LV429057
LV429057
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Schneider Electric
-
-
LV429227
LV429227
Limited Stock
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Schneider Electric
-
-
LV429242
LV429242
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Schneider Electric
-
-
LV429265
LV429265
Limited Stock
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Schneider Electric
-
-
LV429317
LV429317
Limited Stock
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Schneider Electric
-
-
LV429329
LV429329
In Stock
From
$98.10
Schneider Electric
-
-
LV429330
LV429330
In Stock
From
$16.17
Schneider Electric
-
-
LV429354
LV429354
Limited Stock
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Schneider Electric
-
-
LV430451
LV430451
Limited Stock
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Schneider Electric
-
-
LV432479
LV432479
Limited Stock
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Schneider Electric
-
-
LV432505
LV432505
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Schneider Electric
-
-
LV432519
LV432519
Limited Stock
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Schneider Electric
-
-
LV432834
LV432834
In Stock
From
$2,364.10
Schneider Electric
630
690
LV434550
LV434550
In Stock
From
$948.72
Schneider Electric
100
690
LV434551
LV434551
In Stock
From
$725.05
Schneider Electric
160
690
LV434554
LV434554
In Stock
From
$264.82
Schneider Electric
240
690
LV434557
LV434557
In Stock
From
$1,030.20
Schneider Electric
400
690
LV434563
LV434563
In Stock
From
$1,408.13
Schneider Electric
160
690
LV434564
LV434564
In Stock
From
$1,842.91
Schneider Electric
240
690
LV510715
LV510715
In Stock
From
$110.86
Schneider Electric
100
8000
LV563510
LV563510
In Stock
From
$2,570.30
Schneider Electric
630
8000
ME36500LSIG1021
ME36500LSIG1021
In Stock
From
$2,722.81
Square D
500
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.