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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
HQNB3015
HQNB3015
In Stock
From
$123.31
Westinghouse
15
240
HQNB3020
HQNB3020
In Stock
From
$66.74
Westinghouse
20
240
HQNBA3090
HQNBA3090
In Stock
From
$54.35
Westinghouse
90
240
HQNP3015
HQNP3015
In Stock
From
$20.67
Cutler Hammer
15
240
HQNPA3060
HQNPA3060
In Stock
From
$22.51
Cutler Hammer
60
240
HQNPA3070
HQNPA3070
In Stock
From
$68.98
Cutler Hammer
70
240
HQNPA3090
HQNPA3090
In Stock
From
$125.02
Cutler Hammer
90
240
HQP1010
HQP1010
In Stock
From
$23.81
Cutler Hammer
10
120
HQP1015
HQP1015
In Stock
From
$11.09
Cutler Hammer
15
120
HQP1050
HQP1050
In Stock
From
$16.41
Cutler Hammer
50
120
HQP1060
HQP1060
In Stock
From
$20.96
Cutler Hammer
60
120
HQP2015B
HQP2015B
In Stock
From
$260.36
Cutler Hammer
15
240
HQP2020H
HQP2020H
In Stock
From
$204.26
Cutler Hammer
20
240
HQP2035
HQP2035
In Stock
From
$61.15
Cutler Hammer
35
240
HQP2040H
HQP2040H
In Stock
From
$249.92
Cutler Hammer
40
240
HQP2045
HQP2045
In Stock
From
$192.36
Cutler Hammer
45
240
HQP2050
HQP2050
In Stock
From
$15.82
Cutler Hammer
50
240
HQP2060
HQP2060
In Stock
From
$44.67
Cutler Hammer
60
240
HQP2100
HQP2100
In Stock
From
$49.90
Cutler Hammer
100
240
HQP3010H
HQP3010H
In Stock
From
$328.32
Cutler Hammer
10
240
HQP3025H
HQP3025H
In Stock
From
$97.43
Cutler Hammer
25
240
HQP3035H
HQP3035H
In Stock
From
$546.73
Cutler Hammer
35
240
HQP3050H
HQP3050H
In Stock
From
$116.82
Cutler Hammer
50
240
HQP3060H
HQP3060H
In Stock
From
$135.29
Cutler Hammer
60
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.