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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
CH3080
CH3080
In Stock
From
$286.00
Challenger
80
480
CH3090ST
CH3090ST
In Stock
From
$415.25
Challenger
90
480
A115
A115
In Stock
From
$268.59
Challenger
15
120
A115L
A115L
In Stock
From
$21.00
Challenger
15
120
A115R
A115R
In Stock
From
$22.87
Challenger
15
120
A1515
A1515
In Stock
From
$11.11
Challenger
15
120
A1515CT
A1515CT
In Stock
From
$41.62
Challenger
15
240
A1520
A1520
In Stock
From
$38.13
Challenger
20
120
A2020
A2020
In Stock
From
$14.26
Challenger
20
240
A21530CT
A21530CT
In Stock
From
$53.46
Challenger
30
240
A220
A220
In Stock
From
$55.43
Thomas & Betts
20
240
A22020CT
A22020CT
In Stock
From
$52.71
Challenger
20
-
A22030CT
A22030CT
In Stock
From
$83.56
Challenger
30
-
A22040CT
A22040CT
In Stock
From
$20.04
Challenger
40
240
A3020
A3020
In Stock
From
$15.59
Challenger
20
240
A3030CT
A3030CT
In Stock
From
$47.24
Challenger
30
240
BQ1C020
BQ1C020
In Stock
From
$5.87
Challenger
20
120
BQ2C060
BQ2C060
In Stock
From
$119.74
Challenger
60
240
C2125
C2125
In Stock
From
$55.41
Challenger
125
240
C220
C220
In Stock
From
$10.32
Challenger
20
240
C225
C225
In Stock
From
$47.26
Challenger
25
240
C230
C230
In Stock
From
$54.57
Challenger
30
240
C240
C240
In Stock
From
$25.30
Challenger
40
240
C245
C245
In Stock
From
$74.93
Challenger
45
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.