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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
BB3AEA-020
BB3AEA-020
In Stock
From
$39.44
Fuji Electric
BB3ASB-010
BB3ASB-010
In Stock
From
$57.17
Fuji Electric
BB3ASB-015
BB3ASB-015
In Stock
From
$91.21
Fuji Electric
BB3BEAC-010
BB3BEAC-010
In Stock
From
$99.10
Fuji Electric
BB3BEAC-020
BB3BEAC-020
In Stock
From
$56.15
Fuji Electric
BB3BEBUL-005
BB3BEBUL-005
In Stock
From
$56.17
Fuji Electric
BM3ZSS-001
BM3ZSS-001
In Stock
From
$63.07
Fuji Electric
BM3ZSS-004
BM3ZSS-004
In Stock
From
$22.30
Fuji Electric
BM3ZSS-010
BM3ZSS-010
In Stock
From
$31.35
Fuji Electric
BU-ECA2080
BU-ECA2080
In Stock
From
$159.10
Fuji Electric
BU-ESB2030
BU-ESB2030
In Stock
From
$58.26
Fuji Electric
BU-FHA-2020
BU-FHA-2020
In Stock
From
$58.32
Fuji Electric
BU-FHA-3060
BU-FHA-3060
In Stock
From
$138.99
Fuji Electric
BU-FHB3020
BU-FHB3020
Limited Stock
From
Get Price
Fuji Electric
BU-FSB2150
BU-FSB2150
In Stock
From
$37.96
Fuji Electric
BU-GCA3200L
BU-GCA3200L
In Stock
From
$294.36
Fuji Electric
BU-JHB3250
BU-JHB3250
In Stock
From
$176.51
Fuji Electric
BU-JSA2250
BU-JSA2250
In Stock
From
$246.39
Fuji Electric
BU-JSB2250
BU-JSB2250
In Stock
From
$187.39
Fuji Electric
BU-JSB3200
BU-JSB3200
In Stock
From
$1,464.64
Fuji Electric
BU-KDA3300
BU-KDA3300
In Stock
From
$153.75
Fuji Electric
BU-KDA3400
BU-KDA3400
In Stock
From
$856.35
Fuji Electric
BU-LSB3500
BU-LSB3500
In Stock
From
$1,155.00
Fuji Electric
BU-MHB3800L
BU-MHB3800L
In Stock
From
$2,434.14
Fuji 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.