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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
FA34045
FA34045
In Stock
From
$1,372.92
Square D
45
480
FA34050
FA34050
In Stock
From
$404.99
Square D
50
480
FA34060
FA34060
In Stock
From
$382.11
Square D
60
480
FA34060-BLACK
FA34060-BLACK
In Stock
From
$132.91
Square D
60
480
FA340601021
FA340601021
In Stock
From
$822.18
Square D
60
480
FA34070-BLACK
FA34070-BLACK
In Stock
From
$648.88
Square D
70
480
FA34080
FA34080
In Stock
From
$649.80
Square D
80
480
FA34080-BLACK
FA34080-BLACK
In Stock
From
$732.95
Square D
80
480
FA34090
FA34090
In Stock
From
$825.27
Square D
90
480
FA34100
FA34100
In Stock
From
$428.06
Square D
100
480
FA341001021
FA341001021
In Stock
From
$691.69
Square D
100
480
FA36015
FA36015
In Stock
From
$523.06
Square D
15
600
FA36015-BLACK
FA36015-BLACK
In Stock
From
$418.45
Square D
15
600
FA36020
FA36020
In Stock
From
$345.53
Square D
20
600
FA36020-BLACK
FA36020-BLACK
In Stock
From
$354.41
Square D
20
600
FA36025
FA36025
In Stock
From
$542.46
Square D
25
600
FA36030G
FA36030G
In Stock
From
$442.72
Square D
30
600
FA36040
FA36040
In Stock
From
$482.64
Square D
40
600
FA360401021
FA360401021
In Stock
From
$247.86
Square D
40
600
FA36050
FA36050
In Stock
From
$212.38
Square D
50
600
FA36060
FA36060
In Stock
From
$455.75
Square D
60
600
FA36060G
FA36060G
In Stock
From
$673.60
Square D
60
600
FA36070
FA36070
In Stock
From
$568.34
Square D
70
600
FA36080
FA36080
In Stock
From
$584.25
Square D
80
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.