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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
HFDDC3100
HFDDC3100
Limited Stock
From
Get Price
Eaton
100
600
HFDDC3150LA1301U3801
HFDDC3150LA1301U3801
In Stock
From
$2,969.03
Eaton
150
600
MDSA3800F
MDSA3800F
In Stock
From
Get Price
Eaton
800
600
MDSYA3800F
MDSYA3800F
In Stock
From
Get Price
Eaton
800
240
MDY3800
MDY3800
In Stock
From
Get Price
Cutler Hammer
800
240
G2070
G2070
In Stock
From
$89.41
Eaton
70
600
G3100
G3100
In Stock
From
$120.08
Eaton
100
600
HBAW1020
HBAW1020
In Stock
From
$122.40
Westinghouse
20
240
HBAW2015
HBAW2015
In Stock
From
$181.73
Westinghouse
15
240
HBAW2020
HBAW2020
In Stock
From
$389.96
Westinghouse
20
240
HBAW2025
HBAW2025
In Stock
From
$325.33
Westinghouse
25
240
HBAW2030
HBAW2030
In Stock
From
Get Price
Westinghouse
30
240
HBAX2030
HBAX2030
In Stock
From
$194.45
Westinghouse
30
240
HBAX2070
HBAX2070
In Stock
From
$248.49
Westinghouse
70
240
HBAX2080
HBAX2080
In Stock
From
$499.18
Westinghouse
80
240
HBAX2090
HBAX2090
In Stock
From
$415.98
Westinghouse
90
240
HBAX3015H
HBAX3015H
In Stock
From
$482.99
Westinghouse
15
240
HBAX3020H
HBAX3020H
In Stock
From
$482.99
Westinghouse
20
240
HBAX3030H
HBAX3030H
In Stock
From
$543.24
Westinghouse
30
240
HBAX3040H
HBAX3040H
In Stock
From
$664.39
Westinghouse
40
240
HBAX3060H
HBAX3060H
In Stock
From
$699.92
Westinghouse
60
240
HBAX3080H
HBAX3080H
In Stock
From
$972.52
Westinghouse
80
240
HBAX3090H
HBAX3090H
In Stock
From
$501.89
Westinghouse
90
240
HBAX3100H
HBAX3100H
In Stock
From
$1,234.20
Westinghouse
100
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.