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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
HJA260152
HJA260152
In Stock
From
$674.33
Square D
15
600
HJA260155
HJA260155
In Stock
From
$1,129.52
Square D
15
600
HJA260201
HJA260201
In Stock
From
$319.31
Square D
20
600
HJA260202
HJA260202
In Stock
From
$577.45
Square D
20
600
HJA260204
HJA260204
In Stock
From
$319.10
Square D
20
600
HJA260205
HJA260205
In Stock
From
$1,256.44
Square D
20
600
HJA260254
HJA260254
In Stock
From
$499.19
Square D
25
600
HJA260301
HJA260301
In Stock
From
$565.81
Square D
30
600
HJA260302
HJA260302
In Stock
From
$951.17
Square D
30
600
HJA260304
HJA260304
In Stock
From
$1,141.40
Square D
30
600
HJA260352
HJA260352
In Stock
From
$789.94
Square D
35
600
HJA260354
HJA260354
In Stock
From
$750.44
Square D
35
600
HJA260401
HJA260401
In Stock
From
$493.77
Square D
40
600
HJA260402
HJA260402
In Stock
From
$1,120.36
Square D
40
600
HJA260404
HJA260404
In Stock
From
$640.48
Square D
40
600
HJA260501
HJA260501
In Stock
From
$862.46
Square D
50
600
HJA260502
HJA260502
In Stock
From
$723.50
Square D
50
600
HJA260504
HJA260504
In Stock
From
$817.20
Square D
50
600
HJA260601
HJA260601
In Stock
From
$762.76
Square D
60
600
HJA260602
HJA260602
In Stock
From
$970.35
Square D
60
600
HJA260604
HJA260604
In Stock
From
$646.92
Square D
60
600
HJA260702
HJA260702
In Stock
From
$2,078.82
Square D
70
600
HJA260802
HJA260802
In Stock
From
$748.05
Square D
80
600
HJA261001
HJA261001
In Stock
From
$804.78
Square D
100
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.