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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
QCB90
QCB90
In Stock
From
$59.18
Zinsco
90
240
QCF1025
QCF1025
In Stock
From
$101.25
Cutler Hammer
25
240
QCF2010T
QCF2010T
In Stock
From
$206.64
Eaton
10
240
QCF2045
QCF2045
In Stock
From
$62.37
Eaton
45
240
QCGF1015
QCGF1015
In Stock
From
$93.71
Cutler Hammer
15
120
QCGF2015
QCGF2015
In Stock
From
$281.42
Eaton
15
240
QCGF2050
QCGF2050
In Stock
From
$325.42
Eaton
50
240
QCGFEP1015
QCGFEP1015
In Stock
From
$160.86
Eaton
15
120
QCGFEP1015W2
QCGFEP1015W2
In Stock
From
$615.07
Eaton
15
120
QCGFEP2015
QCGFEP2015
In Stock
From
$191.18
Cutler Hammer
15
240
QCGFT1015
QCGFT1015
In Stock
From
$214.77
Cutler Hammer
15
120
QCHW1015
QCHW1015
In Stock
From
$56.24
Eaton
15
240
QCHW1020
QCHW1020
In Stock
From
$72.85
Eaton
20
240
QCL1015
QCL1015
In Stock
From
$8.64
Westinghouse
15
240
QCL1020
QCL1020
In Stock
From
$24.03
Westinghouse
20
240
QCL2020
QCL2020
In Stock
From
$71.63
Westinghouse
20
240
QCR1015
QCR1015
In Stock
From
$32.11
Cutler Hammer
15
120
QCR1025
QCR1025
In Stock
From
$18.95
Eaton
25
120
QCR1040
QCR1040
In Stock
From
$12.59
Eaton
40
120
QCR1045
QCR1045
In Stock
From
$37.39
Eaton
45
120
QCR2010
QCR2010
In Stock
From
$63.56
Eaton
10
240
QCR2010T
QCR2010T
In Stock
From
$91.15
Cutler Hammer
10
240
QCR2025
QCR2025
In Stock
From
$39.00
Cutler Hammer
25
240
QCR2035
QCR2035
In Stock
From
$87.07
Eaton
35
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.