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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
KA4150
KA4150
In Stock
From
Get Price
Westinghouse
150
600
KDL3225F
KDL3225F
In Stock
From
$2.24
Westinghouse
-
-
1222032
1222032
In Stock
From
$49.89
Westinghouse
-
-
1259C52G01
1259C52G01
In Stock
From
$784.64
Westinghouse
-
-
1259C52G07
1259C52G07
In Stock
From
$1,296.05
Westinghouse
-
-
1259C52G15
1259C52G15
In Stock
From
$605.94
Westinghouse
-
-
1265C95G04
1265C95G04
In Stock
From
$144.46
Westinghouse
-
-
1419814
1419814
In Stock
From
$13.94
Westinghouse
-
-
1531172
1531172
In Stock
From
$23.44
Westinghouse
-
-
1532372A
1532372A
In Stock
From
$22.10
Westinghouse
-
-
1532396-A
1532396-A
In Stock
From
$74.67
Westinghouse
-
-
1532398-A
1532398-A
In Stock
From
$336.00
Westinghouse
-
-
1605782A
1605782A
In Stock
From
$63.80
Westinghouse
-
-
1720859
1720859
In Stock
From
$98.73
Westinghouse
-
-
1764924
1764924
In Stock
From
$98.05
Westinghouse
-
-
1774219 CC
1774219 CC
In Stock
From
$147.95
Westinghouse
-
-
17773-11292099-1
17773-11292099-1
In Stock
From
$688.96
Westinghouse
-
-
22E-6864
22E-6864
In Stock
From
$113.69
Westinghouse
-
-
2609D55G06
2609D55G06
In Stock
From
$175.69
Westinghouse
-
-
314C365G19
314C365G19
In Stock
From
$251.86
Westinghouse
-
-
314C960G04
314C960G04
In Stock
From
$90.44
Westinghouse
-
-
43E-3407
43E-3407
In Stock
From
$229.24
Westinghouse
-
-
452D370G03
452D370G03
In Stock
From
$6,842.82
Westinghouse
-
-
48A3769G28
48A3769G28
In Stock
From
$260.70
Westinghouse
-
-
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.