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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
QOB1201021
QOB1201021
In Stock
From
$140.59
Schneider Electric
20
120
QOB130VH
QOB130VH
In Stock
From
$22.56
Schneider Electric
30
120
S174A
S174A
In Stock
From
$5,432.53
Schneider Electric
-
600
SFAL3032
SFAL3032
In Stock
From
$733.82
Schneider Electric
32
415
SSP01EMA12
SSP01EMA12
In Stock
From
$2,312.36
Schneider Electric
100
240
60235
60235
In Stock
From
$59.66
Schneider Electric
1
240
HOMT215240
HOMT215240
In Stock
From
$80.14
Square D
40
240
HOMT230230
HOMT230230
In Stock
From
$177.02
Square D
30
240
HOMT230250
HOMT230250
In Stock
From
$91.95
Square D
50
240
25642
25642
Limited Stock
From
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Merlin Gerin
4
240
25643
25643
In Stock
From
$13.37
Schneider Electric
6
240
25644
25644
Limited Stock
From
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Merlin Gerin
10
240
25645
25645
In Stock
From
$13.86
Merlin Gerin
16
240
25646
25646
Limited Stock
From
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Merlin Gerin
20
240
25649
25649
Limited Stock
From
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Schneider Electric
40
240
25652
25652
Limited Stock
From
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Merlin Gerin
63
240
25656
25656
In Stock
From
$32.67
Merlin Gerin
4
480
25659
25659
In Stock
From
$14.81
Merlin Gerin
16
480
25660
25660
In Stock
From
$10.54
Merlin Gerin
20
480
25665
25665
Limited Stock
From
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Merlin Gerin
50
480
25666
25666
Limited Stock
From
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Merlin Gerin
63
480
25667
25667
Limited Stock
From
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Merlin Gerin
1
480
25668
25668
In Stock
From
$10.84
Square D
2
480
25670
25670
Limited Stock
From
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Merlin Gerin
4
480
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.