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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
76170-5026
76170-5026
In Stock
From
$39.39
Molex
78213-1011
78213-1011
In Stock
From
$19.90
Molex
76155-9104
76155-9104
In Stock
From
$20.53
Molex
76170-1036
76170-1036
In Stock
From
$23.69
Molex
76170-5036
76170-5036
In Stock
From
$18.89
Molex
76410-1607
76410-1607
In Stock
From
$41.55
Molex
76500-3607
76500-3607
In Stock
From
$65.42
Molex
76990-5020
76990-5020
In Stock
From
$32.32
Molex
78211-1044
78211-1044
In Stock
From
$12.34
Molex
78247-1001
78247-1001
In Stock
From
$17.73
Molex
78347-2001
78347-2001
In Stock
From
$14.45
Molex
78350-1001
78350-1001
In Stock
From
$17.38
Molex
78715-0007
78715-0007
In Stock
From
$13.72
Molex
76170-1026
76170-1026
Limited Stock
From
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Molex
76165-3607
76165-3607
Limited Stock
From
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Molex
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.