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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
17414
17414
In Stock
From
$24.61
Merlin Gerin
5
277
18445
18445
Limited Stock
From
Get Price
Merlin Gerin
63
440
18508
18508
In Stock
From
$244.37
Merlin Gerin
32
440
18520
18520
In Stock
From
$20.43
Merlin Gerin
40
440
1C100
1C100
In Stock
From
$138.06
Schneider Electric
100
240
24068
24068
Limited Stock
From
Get Price
Schneider Electric
0.5
440
24075
24075
In Stock
From
$51.22
Merlin Gerin
6
440
24104
24104
In Stock
From
$184.59
Square D
20
440
24331
24331
Limited Stock
From
Get Price
Merlin Gerin
1
440
24332
24332
In Stock
From
$182.65
Square D
2
440
24334
24334
In Stock
From
$79.95
Merlin Gerin
4
440
24336
24336
In Stock
From
$40.02
Square D
10
440
24337
24337
In Stock
From
$82.99
Schneider Electric
16
440
24341
24341
In Stock
From
$59.14
Square D
40
440
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
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.