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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
RE3015L
RE3015L
In Stock
From
$291.86
Westinghouse
15
240
RE3020L
RE3020L
In Stock
From
$325.32
Westinghouse
20
240
RE3025
RE3025
In Stock
From
$431.16
Westinghouse
25
240
RE3025L
RE3025L
In Stock
From
$431.16
Westinghouse
25
240
RE3030
RE3030
Limited Stock
From
Get Price
Westinghouse
30
240
RE3030L
RE3030L
In Stock
From
$289.32
Westinghouse
30
240
RE3040
RE3040
In Stock
From
$294.10
Westinghouse
40
240
RE3040L
RE3040L
In Stock
From
$292.52
Westinghouse
40
240
RE3050
RE3050
In Stock
From
$1.10
Westinghouse
50
240
RE3050L
RE3050L
In Stock
From
$289.06
Westinghouse
50
240
RE3060
RE3060
In Stock
From
$292.63
Westinghouse
60
240
RE3060L
RE3060L
In Stock
From
$289.41
Westinghouse
60
240
REA3015
REA3015
In Stock
From
$3.38
Westinghouse
15
240
RF3015
RF3015
In Stock
From
$87.54
Cutler Hammer
15
600
RF3020
RF3020
In Stock
From
$209.59
Westinghouse
20
600
RF3030
RF3030
In Stock
From
$229.88
Cutler Hammer
30
600
RF3040
RF3040
In Stock
From
$203.75
Westinghouse
40
600
RF3050
RF3050
In Stock
From
$102.46
Westinghouse
50
600
RF3100
RF3100
In Stock
From
$494.10
Westinghouse
100
600
RFA3015
RFA3015
In Stock
From
$166.73
Westinghouse
15
600
RFA3025
RFA3025
In Stock
From
Get Price
Westinghouse
25
600
RFA3030
RFA3030
In Stock
From
$272.20
Cutler Hammer
30
600
RFA3035
RFA3035
In Stock
From
$394.15
Westinghouse
35
600
RFA3040
RFA3040
In Stock
From
$569.66
Westinghouse
40
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.