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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
QGP32200TM
QGP32200TM
In Stock
From
$2,798.15
Square D
200
240
QO200TR
QO200TR
In Stock
From
$29.26
Square D
60
240
QO220GFI
QO220GFI
In Stock
From
$157.24
Square D
20
120
QO260GFI
QO260GFI
In Stock
From
$103.63
Square D
60
120
QO260NATS
QO260NATS
In Stock
From
$53.95
Square D
60
240
QOB120VH
QOB120VH
In Stock
From
$84.67
Square D
20
120
QOB125EPD
QOB125EPD
In Stock
From
$440.80
Square D
25
120
QOB125VH
QOB125VH
In Stock
From
$51.09
Square D
25
120
QOB1305237
QOB1305237
In Stock
From
$104.88
Square D
30
120
QOB130HID
QOB130HID
In Stock
From
$13.35
Square D
30
120
QOB2125
QOB2125
In Stock
From
$188.71
Square D
125
120
QOB230GFI
QOB230GFI
In Stock
From
$184.41
Square D
30
240
QOB240VH1021
QOB240VH1021
In Stock
From
$173.14
Square D
40
240
QOB250VH
QOB250VH
In Stock
From
$157.66
Square D
50
240
QOB280VH
QOB280VH
In Stock
From
$198.05
Square D
80
240
QOB3100VH1021
QOB3100VH1021
In Stock
From
$419.44
Square D
100
240
QOB350VH1021
QOB350VH1021
In Stock
From
$559.27
Schneider Electric
50
240
QOB390VH1021
QOB390VH1021
In Stock
From
$553.95
Square D
90
240
QOM100VH8106
QOM100VH8106
In Stock
From
$115.02
Square D
100
240
QOM100VHL
QOM100VHL
In Stock
From
$122.17
Square D
100
120
QOM2125MM
QOM2125MM
In Stock
From
$330.78
Square D
125
240
QOM60L
QOM60L
In Stock
From
$137.67
Square D
60
120
QOT1515
QOT1515
In Stock
From
$28.76
Square D
15
240
QOT2020
QOT2020
In Stock
From
$17.97
Square D
20
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.