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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.
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Part Number
PRICE
Manufacturer
M9A27107
M9A27107
In Stock
From
$191.43
Schneider Electric
M9F11110
M9F11110
In Stock
From
$69.24
Schneider Electric
M9F11202
M9F11202
Limited Stock
From
Get Price
Schneider Electric
M9F11316
M9F11316
In Stock
From
$442.38
Schneider Electric
M9F21108
M9F21108
In Stock
From
$132.59
Schneider Electric
M9F21220
M9F21220
In Stock
From
$109.01
Schneider Electric
M9F22203
M9F22203
In Stock
From
$171.40
Schneider Electric
M9F22216
M9F22216
In Stock
From
$137.56
Schneider Electric
M9F23310
M9F23310
Limited Stock
From
Get Price
Schneider Electric
M9F52102
M9F52102
In Stock
From
$146.71
Schneider Electric
M9F52108
M9F52108
In Stock
From
$70.45
Schneider Electric
M9F52130
M9F52130
In Stock
From
$129.59
Schneider Electric
M9F53108
M9F53108
In Stock
From
$112.89
Schneider Electric
M9F53220
M9F53220
In Stock
From
$105.02
Schneider Electric
M9F54106
M9F54106
In Stock
From
$45.77
Schneider Electric
M9P22610
M9P22610
In Stock
From
$132.64
Schneider Electric
M9U21104
M9U21104
Limited Stock
From
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Schneider Electric
M9U21120
M9U21120
In Stock
From
$95.60
Schneider Electric
M9U21170
M9U21170
In Stock
From
$457.79
Schneider Electric
MG19663
MG19663
Limited Stock
From
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Schneider Electric
MG37244
MG37244
Limited Stock
From
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Schneider Electric
MGN61511
MGN61511
Limited Stock
From
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Schneider Electric
MULTI9C6020A2P
MULTI9C6020A2P
In Stock
From
$177.19
Schneider Electric
MULTI9C6020A3P
MULTI9C6020A3P
In Stock
From
$184.16
Schneider Electric
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.