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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
LDC3300
LDC3300
In Stock
From
$7,402.84
Eaton
300
600
LDC3400
LDC3400
In Stock
From
$2,951.45
Eaton
400
600
LDC3450
LDC3450
In Stock
From
$6,325.12
Eaton
450
600
LDC3600
LDC3600
In Stock
From
$4,052.54
Eaton
600
600
LDC3600T107W
LDC3600T107W
In Stock
From
$3,871.10
Eaton
600
600
MDL3450
MDL3450
In Stock
From
$3,777.89
Cutler Hammer
450
600
MDL3500
MDL3500
In Stock
From
$3,356.17
Eaton
500
600
MDL3600
MDL3600
In Stock
From
$5,137.71
Westinghouse
600
600
BAB3015HV
BAB3015HV
In Stock
From
$98.71
Eaton
15
240
BAB3030C
BAB3030C
In Stock
From
$58.51
Eaton
30
240
BAB3050H
BAB3050H
In Stock
From
$121.76
Eaton
50
240
BAB3050HT
BAB3050HT
In Stock
From
$1,104.79
Eaton
50
240
BAB3060H
BAB3060H
In Stock
From
$63.07
Eaton
60
240
BAB3100H
BAB3100H
In Stock
From
$193.64
Eaton
100
240
BR130
BR130
In Stock
From
$10.83
Eaton
30
120
BR130ST
BR130ST
In Stock
From
$128.44
Westinghouse
30
240
BR135
BR135
In Stock
From
$12.09
Westinghouse
35
120
BR140
BR140
In Stock
From
$7.80
Eaton
40
120
BR225
BR225
In Stock
From
$20.00
Eaton
25
240
BR240
BR240
In Stock
From
$15.31
Eaton
40
240
BR270
BR270
In Stock
From
$34.45
Eaton
70
240
BR330
BR330
In Stock
From
$65.94
Eaton
30
240
BR340
BR340
In Stock
From
$62.89
Eaton
40
240
BR370
BR370
In Stock
From
$128.96
Eaton
70
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.