1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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
MG17447
MG17447
In Stock
From
$35.84
Square D
30
240
MG17449
MG17449
In Stock
From
$194.72
Square D
60
240
MG17454
MG17454
In Stock
From
$80.50
Schneider Electric
5
240
MG17456
MG17456
In Stock
From
$169.17
Square D
15
240
MG17457
MG17457
In Stock
From
$85.90
Square D
30
240
MG17458
MG17458
In Stock
From
$78.75
Schneider Electric
35
240
MG17461
MG17461
In Stock
From
$206.39
Schneider Electric
15
240
MG17462
MG17462
In Stock
From
$224.04
Square D
30
240
MG17463
MG17463
In Stock
From
$77.61
Square D
35
240
MG17466
MG17466
In Stock
From
$249.19
Schneider Electric
15
240
MG17469
MG17469
In Stock
From
$278.36
Square D
60
240
MG17472
MG17472
In Stock
From
$226.47
Schneider Electric
30
240
MG17474
MG17474
In Stock
From
$266.04
Square D
60
240
MG24110
MG24110
In Stock
From
$87.50
Square D
1
240
MG24114
MG24114
In Stock
From
$35.67
Schneider Electric
6
240
MG24115
MG24115
In Stock
From
$55.80
Square D
8
240
MG24116
MG24116
In Stock
From
$54.72
Square D
10
240
MG24117
MG24117
In Stock
From
$65.52
Square D
13
240
MG24119
MG24119
In Stock
From
$79.00
Schneider Electric
20
240
MG24120
MG24120
In Stock
From
$53.34
Square D
25
240
MG24122
MG24122
In Stock
From
$35.00
Square D
40
240
MG24126
MG24126
In Stock
From
$74.87
Schneider Electric
2
240
MG24128
MG24128
In Stock
From
$275.41
Square D
4
240
MG24129
MG24129
In Stock
From
$163.39
Schneider Electric
6
240
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.