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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.
SORT BY
Part Number
PRICE
Manufacturer
2D6UR
2D6UR
In Stock
From
$76.60
Altech Corp
2D8UM
2D8UM
In Stock
From
$33.47
Altech Corp
2DU12R
2DU12R
In Stock
From
$31.31
Altech Corp
2DU15R
2DU15R
In Stock
From
$21.22
Altech Corp
2DU20
2DU20
In Stock
From
$5.60
Altech Corp
2DU20L
2DU20L
In Stock
From
$39.67
Altech Corp
2DU25
2DU25
In Stock
From
$15.15
Altech Corp
2DU25L
2DU25L
In Stock
From
$42.99
Altech Corp
2DU25R
2DU25R
In Stock
From
$23.67
Altech Corp
2DU3L
2DU3L
In Stock
From
$26.65
Altech Corp
2DU40
2DU40
In Stock
From
$20.19
Altech Corp
2DU40L
2DU40L
In Stock
From
$68.00
Altech Corp
2DU4R
2DU4R
In Stock
From
$21.32
Altech Corp
2DU60L
2DU60L
In Stock
From
$42.00
Altech Corp
2E3UM
2E3UM
In Stock
From
$48.48
Altech Corp
2G15UM
2G15UM
In Stock
From
$57.55
Altech Corp
2G30UM
2G30UM
In Stock
From
$106.39
Altech Corp
2G6UM
2G6UM
In Stock
From
$81.05
Altech Corp
2GNU10
2GNU10
In Stock
From
$30.37
Altech Corp
2GU15
2GU15
In Stock
From
$20.24
Altech Corp
2Z15UM
2Z15UM
In Stock
From
$316.57
Altech Corp
3B25UR
3B25UR
In Stock
From
$191.79
Altech Corp
3C15UR
3C15UR
In Stock
From
$107.95
Altech Corp
3C1UL
3C1UL
In Stock
From
$71.77
Altech Corp
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.