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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
368D769G27
368D769G27
In Stock
From
$1,367.56
Westinghouse
350
600
368D769G28
368D769G28
In Stock
From
$1,536.70
Westinghouse
400
600
368D769G32
368D769G32
In Stock
From
$1,536.70
Westinghouse
400
600
368D769G37
368D769G37
In Stock
From
$696.22
Westinghouse
125
600
368D769G38
368D769G38
In Stock
From
$644.77
Westinghouse
150
600
368D769G39
368D769G39
In Stock
From
$548.32
Westinghouse
175
600
368D769G40
368D769G40
In Stock
From
$361.73
Westinghouse
200
600
368D769G41
368D769G41
In Stock
From
$709.06
Westinghouse
225
600
368D769G42
368D769G42
In Stock
From
$709.91
Westinghouse
250
600
368D769G43
368D769G43
In Stock
From
$667.70
Westinghouse
300
600
368D769G44
368D769G44
In Stock
From
$55.60
Westinghouse
350
600
368D769G45
368D769G45
In Stock
From
$1,285.57
Westinghouse
400
600
368D769G52
368D769G52
In Stock
From
$512.23
Westinghouse
125
600
368D769G53
368D769G53
In Stock
From
$725.90
Westinghouse
150
600
368D769G54
368D769G54
In Stock
From
$752.99
Westinghouse
175
600
368D769G55
368D769G55
In Stock
From
$587.03
Westinghouse
200
600
368D769G56
368D769G56
In Stock
From
$483.43
Westinghouse
225
600
368D769G57
368D769G57
In Stock
From
Get Price
Westinghouse
250
600
368D769G58
368D769G58
In Stock
From
$1,148.81
Westinghouse
300
600
368D769G59
368D769G59
In Stock
From
$1,538.51
Westinghouse
350
600
368D769G60
368D769G60
In Stock
From
$1,536.70
Westinghouse
400
600
36925
36925
In Stock
From
$7.63
Merlin Gerin
400
600
36932
36932
In Stock
From
$14.42
Schneider Electric
600
600
36934
36934
In Stock
From
$15.61
Merlin Gerin
600
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.