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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
D115
D115
In Stock
From
$12.33
Siemens
15
240
D140EE
D140EE
In Stock
From
$13.06
Siemens
40
240
D215EE
D215EE
In Stock
From
$29.71
Siemens
15
240
D220
D220
In Stock
From
$19.66
Siemens
20
240
D230
D230
In Stock
From
$35.83
Siemens
30
240
D240
D240
In Stock
From
$19.96
Siemens
40
240
D260
D260
In Stock
From
$71.06
Siemens
60
240
DA2250
DA2250
In Stock
From
$277.49
Cutler Hammer
250
600
DA2250Y
DA2250Y
In Stock
From
$709.91
Westinghouse
250
600
DA2300Y
DA2300Y
In Stock
From
$667.70
Westinghouse
300
600
DA2350Y
DA2350Y
In Stock
From
$55.60
Westinghouse
350
600
DA2400
DA2400
In Stock
From
$681.21
Westinghouse
400
600
DA2400XZ
DA2400XZ
In Stock
From
$1,351.83
Westinghouse
400
600
DA2400Y
DA2400Y
In Stock
From
$473.73
Westinghouse
400
600
DA3250
DA3250
In Stock
From
$145.60
Cutler Hammer
250
600
DA3250Y
DA3250Y
In Stock
From
$639.45
Westinghouse
250
600
DA3300XZ
DA3300XZ
In Stock
From
$554.46
Westinghouse
300
600
DA3300Y
DA3300Y
In Stock
From
$877.97
Westinghouse
300
600
DA3350
DA3350
In Stock
From
$320.16
Westinghouse
350
600
DA3350XZ
DA3350XZ
In Stock
From
$402.10
Westinghouse
350
600
DA3350Y
DA3350Y
In Stock
From
$607.86
Westinghouse
350
600
DA3400N
DA3400N
In Stock
From
$431.50
Westinghouse
400
240
DA3400W
DA3400W
In Stock
From
$158.32
Cutler Hammer
400
240
DGA34150E53
DGA34150E53
In Stock
From
$592.46
Schneider Electric
150
480
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.