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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
M9F21205
M9F21205
In Stock
From
$119.01
Schneider Electric
M9F21208
M9F21208
In Stock
From
$133.75
Schneider Electric
M9F22105
M9F22105
In Stock
From
$74.89
Schneider Electric
M9F22163
M9F22163
In Stock
From
$74.60
Schneider Electric
M9F22232
M9F22232
In Stock
From
$330.69
Schneider Electric
M9F22302
M9F22302
In Stock
From
$177.54
Schneider Electric
M9F22313
M9F22313
In Stock
From
$248.70
Schneider Electric
M9F23102
M9F23102
In Stock
From
$56.85
Schneider Electric
M9F23103
M9F23103
Limited Stock
From
Get Price
Schneider Electric
M9F23113
M9F23113
Limited Stock
From
Get Price
Schneider Electric
M9F23202
M9F23202
Limited Stock
From
Get Price
Schneider Electric
M9F23316
M9F23316
Limited Stock
From
Get Price
Schneider Electric
M9F23332
M9F23332
In Stock
From
$190.04
Schneider Electric
M9F42130
M9F42130
In Stock
From
$80.04
Schneider Electric
M9F42135
M9F42135
In Stock
From
$54.84
Schneider Electric
M9F42201
M9F42201
In Stock
From
$185.84
Schneider Electric
M9F42203
M9F42203
In Stock
From
$190.79
Schneider Electric
M9F42225
M9F42225
In Stock
From
$136.49
Schneider Electric
M9F42230
M9F42230
In Stock
From
$147.97
Schneider Electric
M9F42245
M9F42245
In Stock
From
$178.64
Schneider Electric
M9F42301
M9F42301
In Stock
From
$325.30
Schneider Electric
M9F42306
M9F42306
In Stock
From
$186.64
Schneider Electric
M9F42308
M9F42308
In Stock
From
$237.37
Schneider Electric
M9F42310
M9F42310
In Stock
From
$87.53
Square D
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.