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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
QC4100H
QC4100H
In Stock
From
$446.02
Cutler Hammer
100
240
QCGFT1030W2
QCGFT1030W2
In Stock
From
$166.38
Eaton
30
120
QHPX3100H
QHPX3100H
In Stock
From
$980.04
Cutler Hammer
100
240
QPHW3055H
QPHW3055H
In Stock
From
$161.74
Cutler Hammer
55
240
RD320TW
RD320TW
In Stock
From
$1,884.79
Westinghouse
2000
600
RF2015L
RF2015L
In Stock
From
Get Price
Westinghouse
15
600
RF2020
RF2020
In Stock
From
$208.22
Westinghouse
20
600
RF2020L
RF2020L
In Stock
From
$179.60
Cutler Hammer
20
600
RF2025
RF2025
In Stock
From
$158.54
Cutler Hammer
25
600
RF2025L
RF2025L
In Stock
From
$19.15
Westinghouse
25
600
RF2030
RF2030
In Stock
From
Get Price
Westinghouse
30
600
RF2030L
RF2030L
In Stock
From
Get Price
Cutler Hammer
30
600
RF2035
RF2035
In Stock
From
$175.94
Westinghouse
35
600
RF2035L
RF2035L
In Stock
From
$160.23
Cutler Hammer
35
600
RF2040
RF2040
In Stock
From
$1.41
Westinghouse
40
600
RF2040L
RF2040L
In Stock
From
$179.46
Westinghouse
40
600
RF2050
RF2050
In Stock
From
$268.33
Westinghouse
50
600
RF2050L
RF2050L
In Stock
From
$200.53
Westinghouse
50
600
RF2060
RF2060
In Stock
From
$71.32
Westinghouse
60
600
RF2060L
RF2060L
In Stock
From
$71.32
Westinghouse
60
600
RF2070
RF2070
In Stock
From
$649.39
Westinghouse
70
600
RF2070L
RF2070L
In Stock
From
$649.39
Westinghouse
70
600
RF2080
RF2080
In Stock
From
$237.75
Westinghouse
80
600
RF2080L
RF2080L
In Stock
From
$240.89
Westinghouse
80
600
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.