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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
GB3030
GB3030
In Stock
From
$250.30
Westinghouse
30
240
GB3040
GB3040
In Stock
From
$254.43
Westinghouse
40
240
GB3050
GB3050
In Stock
From
$71.00
Westinghouse
50
240
GD2015D
GD2015D
In Stock
From
$135.90
Westinghouse
15
480
GD2020
GD2020
In Stock
From
$371.91
Eaton
20
480
GD2025
GD2025
In Stock
From
$542.37
Westinghouse
25
480
GD2030
GD2030
In Stock
From
$393.32
Eaton
30
480
GD2035
GD2035
In Stock
From
$542.37
Westinghouse
35
480
GD2040
GD2040
In Stock
From
$350.64
Westinghouse
40
480
GD2045
GD2045
In Stock
From
$542.37
Westinghouse
45
480
GD3020
GD3020
In Stock
From
$314.16
Westinghouse
20
480
GD3020D
GD3020D
In Stock
From
$577.40
Westinghouse
20
480
GD3020DS1
GD3020DS1
In Stock
From
$1,232.00
Cutler Hammer
20
480
GD3025
GD3025
In Stock
From
$317.79
Eaton
25
480
GD3030
GD3030
In Stock
From
$200.23
Eaton
30
480
GD3030D
GD3030D
In Stock
From
$795.34
Cutler Hammer
30
480
GD3035
GD3035
In Stock
From
$445.78
Eaton
35
480
GD3040
GD3040
In Stock
From
$281.74
Westinghouse
40
480
GD3040D
GD3040D
In Stock
From
$79.16
Cutler Hammer
40
480
GD3050
GD3050
In Stock
From
$343.05
Eaton
50
480
GD3060
GD3060
In Stock
From
$248.18
Westinghouse
60
480
GD3060KC
GD3060KC
In Stock
From
$172.80
Westinghouse
60
480
GD3070
GD3070
In Stock
From
$344.27
Eaton
70
480
GD3090
GD3090
In Stock
From
$330.11
Westinghouse
90
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.