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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
HM631500R
HM631500R
In Stock
From
$22.49
Federal Pacific
HNB31000WK
HNB31000WK
In Stock
From
$139.60
Federal Pacific
HNB412WJ
HNB412WJ
In Stock
From
$69.80
Federal Pacific
ICP631030
ICP631030
Limited Stock
From
Get Price
Federal Pacific
ICP631050
ICP631050
In Stock
From
$5.56
Federal Pacific
ICP631100
ICP631100
In Stock
From
$225.49
Federal Pacific
NBGF30H
NBGF30H
In Stock
From
$68.95
Federal Pacific
NBH120
NBH120
In Stock
From
$2.56
Federal Pacific
NBH221060
NBH221060
In Stock
From
$11.11
Federal Pacific
NBH232040
NBH232040
In Stock
From
$0.01
Federal Pacific
NE22015
NE22015
In Stock
From
$6.67
Federal Pacific
NE231090
NE231090
Limited Stock
From
Get Price
Federal Pacific
NE231100R
NE231100R
In Stock
From
$130.86
Federal Pacific
NE232020
NE232020
In Stock
From
$22.22
Federal Pacific
NE232040
NE232040
In Stock
From
$22.22
Federal Pacific
NE234060SEJ3
NE234060SEJ3
In Stock
From
$239.79
Federal Pacific
NEB211070
NEB211070
In Stock
From
$1.84
Federal Pacific
NEB221015
NEB221015
In Stock
From
$1.84
Federal Pacific
NEB221030
NEB221030
In Stock
From
$1.84
Federal Pacific
NEF111050
NEF111050
In Stock
From
$0.89
Federal Pacific
NEF111070
NEF111070
In Stock
From
$0.89
Federal Pacific
NEF421070R
NEF421070R
In Stock
From
$7.73
Federal Pacific
NEF421100R
NEF421100R
In Stock
From
$7.27
Federal Pacific
NEF422050
NEF422050
In Stock
From
$2.24
Federal Pacific
Popular Molded Case Circuit Breaker Manufacturers
Eaton
Square D
ABB
Siemens

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.