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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.
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Part Number
PRICE
Manufacturer
Amperage
Voltage
18447
18447
Limited Stock
From
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Merlin Gerin
100
440
18478
18478
In Stock
From
$743.39
Merlin Gerin
63
440
18481
18481
In Stock
From
$10.02
Merlin Gerin
125
440
18512
18512
Limited Stock
From
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Merlin Gerin
80
440
18513
18513
In Stock
From
$1,772.64
Merlin Gerin
100
440
20532
20532
Limited Stock
From
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Merlin Gerin
2
127
24364
24364
Limited Stock
From
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Merlin Gerin
20
440
24690
24690
Limited Stock
From
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Schneider Electric
25
440
24692
24692
Limited Stock
From
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Merlin Gerin
40
440
24693
24693
Limited Stock
From
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Merlin Gerin
50
440
24726
24726
In Stock
From
$234.02
Merlin Gerin
10
440
24742
24742
In Stock
From
$5.15
Merlin Gerin
25
440
24743
24743
In Stock
From
$171.95
Merlin Gerin
32
440
24753
24753
In Stock
From
$127.12
Merlin Gerin
16
440
24754
24754
In Stock
From
$73.34
Merlin Gerin
20
440
24975
24975
In Stock
From
$39.18
Merlin Gerin
20
440
24981
24981
Limited Stock
From
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Merlin Gerin
1
440
24985
24985
Limited Stock
From
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Merlin Gerin
6
440
24993
24993
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From
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Merlin Gerin
63
440
25000
25000
Limited Stock
From
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Merlin Gerin
16
440
25003
25003
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Merlin Gerin
32
440
25009
25009
Limited Stock
From
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Merlin Gerin
3
440
25014
25014
Limited Stock
From
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Schneider Electric
20
440
25015
25015
In Stock
From
$147.40
Merlin Gerin
25
440
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.