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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
LGC3600FAG
LGC3600FAG
In Stock
From
$6,287.36
Eaton
600
600
LGE3400FAG
LGE3400FAG
In Stock
From
$2,590.80
Eaton
400
600
LGE3500FAG
LGE3500FAG
In Stock
From
$4,522.49
Eaton
500
600
LGS3400FAG
LGS3400FAG
In Stock
From
$1,963.91
Eaton
400
600
MD3450
MD3450
In Stock
From
$1,985.22
Cutler Hammer
450
600
MD3800
MD3800
In Stock
From
$1,940.04
Eaton
800
600
MDL3300W
MDL3300W
In Stock
From
$1,475.22
Westinghouse
300
600
MDL3400W
MDL3400W
In Stock
From
$17,001.46
Westinghouse
400
600
MDL3600W
MDL3600W
In Stock
From
$3,788.32
Westinghouse
600
600
MDL3700W
MDL3700W
In Stock
From
$4,379.93
Eaton
700
600
MDL3800F
MDL3800F
In Stock
From
$3,785.11
Eaton
800
600
MDLB3800WK
MDLB3800WK
In Stock
From
$3,430.94
Eaton
800
600
BAB2110S
BAB2110S
In Stock
From
$230.33
Cutler Hammer
110
240
FD3150L
FD3150L
In Stock
From
Get Price
Eaton
150
600
BQL225
BQL225
In Stock
From
$89.51
Eaton
25
240
BQL240
BQL240
In Stock
From
$69.12
Eaton
40
240
BQL270
BQL270
In Stock
From
$168.68
Eaton
70
240
BQL340
BQL340
In Stock
From
$340.55
Eaton
40
240
BQL350
BQL350
In Stock
From
$310.93
Eaton
50
240
BQL370
BQL370
In Stock
From
$386.48
Eaton
70
240
BR115CAFA
BR115CAFA
In Stock
From
$56.89
Eaton
15
120
BR210
BR210
In Stock
From
$20.44
Eaton
10
240
BR2110
BR2110
In Stock
From
$110.83
Eaton
110
240
BR315
BR315
In Stock
From
$125.45
Eaton
15
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.