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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
Amperage
Voltage
HFJ634090
HFJ634090
In Stock
From
$697.40
Federal Pacific
90
600
HFJ634100
HFJ634100
In Stock
From
$1,014.76
Federal Pacific
100
600
HFJ634125
HFJ634125
In Stock
From
$800.68
Federal Pacific
125
600
HFJ634150
HFJ634150
In Stock
From
$512.07
Federal Pacific
150
600
HFJ634175
HFJ634175
In Stock
From
$952.24
Federal Pacific
175
600
HFJ634200
HFJ634200
In Stock
From
$805.79
Federal Pacific
200
600
HFJ634225
HFJ634225
In Stock
From
$477.28
Federal Pacific
225
600
HFJ634250
HFJ634250
In Stock
From
$1,099.49
Federal Pacific
250
600
HFJ635070
HFJ635070
In Stock
From
$302.86
Federal Pacific
70
600
HFJ635090
HFJ635090
In Stock
From
$696.49
Federal Pacific
90
600
HFJ635100
HFJ635100
In Stock
From
$1,014.76
Federal Pacific
100
600
HFJ635125
HFJ635125
In Stock
From
$1,000.26
Federal Pacific
125
600
HFJ635150
HFJ635150
In Stock
From
$526.33
Federal Pacific
150
600
HFJ635175
HFJ635175
In Stock
From
$952.24
Federal Pacific
175
600
HFJ635200
HFJ635200
In Stock
From
$805.79
Federal Pacific
200
600
HFJ635225
HFJ635225
In Stock
From
$582.35
Federal Pacific
225
600
HFJ635250
HFJ635250
In Stock
From
$783.57
Federal Pacific
250
600
HFJ636070
HFJ636070
In Stock
From
$302.86
Federal Pacific
70
600
HFJ636090
HFJ636090
In Stock
From
$850.38
Federal Pacific
90
600
HFJ636100
HFJ636100
In Stock
From
$1,014.76
Federal Pacific
100
600
HFJ636125
HFJ636125
In Stock
From
$1,000.26
Federal Pacific
125
600
HFJ636150
HFJ636150
In Stock
From
$526.33
Federal Pacific
150
600
HFJ636175
HFJ636175
In Stock
From
$952.24
Federal Pacific
175
600
HFJ636200
HFJ636200
In Stock
From
$805.79
Federal Pacific
200
600
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.