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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
24343
24343
In Stock
From
$265.97
Merlin Gerin
63
440
24347
24347
In Stock
From
$131.43
Square D
4
440
24349
24349
Limited Stock
From
Get Price
Schneider Electric
10
440
24350
24350
Limited Stock
From
Get Price
Schneider Electric
16
440
24351
24351
Limited Stock
From
Get Price
Schneider Electric
20
440
24352
24352
In Stock
From
$57.50
Schneider Electric
25
440
24354
24354
In Stock
From
$496.23
Square D
40
440
24396
24396
In Stock
From
$17.27
Merlin Gerin
2
440
24399
24399
In Stock
From
$23.05
Merlin Gerin
6
440
24401
24401
In Stock
From
$24.20
Merlin Gerin
10
440
24404
24404
In Stock
From
$67.55
Merlin Gerin
20
440
24407
24407
In Stock
From
$37.37
Square D
40
440
24425
24425
In Stock
From
$32.42
Merlin Gerin
1
277
24426
24426
In Stock
From
$35.02
Merlin Gerin
2
277
24428
24428
In Stock
From
$20.09
Merlin Gerin
4
277
24460
24460
In Stock
From
$93.20
Merlin Gerin
2
480
24461
24461
In Stock
From
$26.78
Merlin Gerin
3
480
24474
24474
In Stock
From
$39.53
Merlin Gerin
63
480
24540
24540
In Stock
From
$15.80
Merlin Gerin
16
480
24626
24626
Limited Stock
From
Get Price
Schneider Electric
2
440
24653
24653
Limited Stock
From
Get Price
Square D
1
440
24984
24984
In Stock
From
$22.72
Merlin Gerin
4
440
25012
25012
Limited Stock
From
Get Price
Merlin Gerin
10
440
25420
25420
In Stock
From
$11.37
Merlin Gerin
3
440
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.