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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
MG24130
MG24130
In Stock
From
$59.64
Schneider Electric
8
240
MG24132
MG24132
In Stock
From
$100.71
Square D
13
240
MG24133
MG24133
In Stock
From
$29.17
Square D
16
240
MG24134
MG24134
In Stock
From
$135.04
Square D
20
240
MG24135
MG24135
In Stock
From
$72.47
Square D
25
240
MG24138
MG24138
In Stock
From
$58.02
Schneider Electric
50
240
MG24139
MG24139
In Stock
From
$61.17
Schneider Electric
63
240
MG24140
MG24140
In Stock
From
$106.80
Schneider Electric
1
240
MG24141
MG24141
Limited Stock
From
Get Price
Schneider Electric
2
240
MG24142
MG24142
In Stock
From
$103.14
Square D
3
240
MG24144
MG24144
In Stock
From
$44.80
Schneider Electric
6
240
MG24145
MG24145
In Stock
From
$70.00
Square D
8
240
MG24146
MG24146
In Stock
From
$83.40
Square D
10
240
MG24147
MG24147
In Stock
From
$102.67
Square D
13
240
MG24149
MG24149
In Stock
From
$31.80
Square D
20
240
MG24152
MG24152
In Stock
From
$82.19
Schneider Electric
40
240
MG24153
MG24153
In Stock
From
$345.17
Schneider Electric
50
240
MG24165
MG24165
Limited Stock
From
Get Price
Schneider Electric
25
240
MG24425
MG24425
In Stock
From
$54.30
Schneider Electric
1
240
MG24426
MG24426
In Stock
From
$65.80
Schneider Electric
2
240
MG24427
MG24427
In Stock
From
$19.34
Schneider Electric
3
240
MG24430
MG24430
In Stock
From
$48.95
Square D
6
240
MG24432
MG24432
In Stock
From
$29.15
Square D
10
240
MG24433
MG24433
In Stock
From
$43.70
Schneider Electric
13
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.