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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
BF-51A-50A
BF-51A-50A
In Stock
From
$45.13
LS Electric
BK63H-2P-C1A-480
BK63H-2P-C1A-480
In Stock
From
$41.55
LS Electric
BK63H-2P-C63A-480
BK63H-2P-C63A-480
In Stock
From
$15.94
LS Electric
BK63H-3P-C50-480
BK63H-3P-C50-480
In Stock
From
$69.37
LS Electric
BK63H2C16-480
BK63H2C16-480
In Stock
From
$10.75
LS Electric
BK63HU-1P-C1A
BK63HU-1P-C1A
In Stock
From
$15.82
LS Electric
BK63HU-2P-C15-240V
BK63HU-2P-C15-240V
In Stock
From
$24.66
LS Electric
BK63HU-2P-C2A-480
BK63HU-2P-C2A-480
In Stock
From
$15.36
LS Electric
BK63HU-2P-C6A-10KA-480
BK63HU-2P-C6A-10KA-480
In Stock
From
$34.99
LS Electric
BK63HU-3P-C-6A-10KA-480Y/277VAC-UL489
BK63HU-3P-C-6A-10KA-480Y/277VAC-UL489
In Stock
From
$31.05
LS Electric
BK63HU-3P-D3A
BK63HU-3P-D3A
In Stock
From
$76.77
LS Electric
BK63HU-C-4A-10KA-480/277VAC-UL489
BK63HU-C-4A-10KA-480/277VAC-UL489
In Stock
From
$63.57
LS Electric
BKH2100C
BKH2100C
In Stock
From
$23.75
LS Electric
BKH4100C
BKH4100C
In Stock
From
$170.64
LS Electric
BKH4P-80C
BKH4P-80C
In Stock
From
$107.03
LS Electric
BKN 1P C25A
BKN 1P C25A
In Stock
From
$64.29
LS Electric
BKN 1P C32A
BKN 1P C32A
In Stock
From
$19.61
LS Electric
BKN 1P C3A
BKN 1P C3A
In Stock
From
$47.26
LS Electric
BKN 1P C40A
BKN 1P C40A
In Stock
From
$39.16
LS Electric
BKN 1P C4A
BKN 1P C4A
In Stock
From
$32.15
LS Electric
BKN 1P C50A
BKN 1P C50A
In Stock
From
$23.37
LS Electric
BKN 1P C6A
BKN 1P C6A
In Stock
From
$39.59
LS Electric
BKN-1P-C10A
BKN-1P-C10A
In Stock
From
$34.65
LS Electric
BKN-3P-C20A
BKN-3P-C20A
In Stock
From
$53.89
LS 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.