1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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
M9U21106
M9U21106
In Stock
From
$160.48
Schneider Electric
M9U21240
M9U21240
In Stock
From
$241.39
Schneider Electric
MAP361200MT
MAP361200MT
In Stock
From
$2,461.69
Schneider Electric
MG 23469
MG 23469
Limited Stock
From
Get Price
Schneider Electric
MG-14881
MG-14881
In Stock
From
$21.17
Schneider Electric
MG-21653
MG-21653
In Stock
From
$18.44
Schneider Electric
MG-23972
MG-23972
In Stock
From
$27.47
Schneider Electric
MG-24634
MG-24634
Limited Stock
From
Get Price
Schneider Electric
MG-24908
MG-24908
In Stock
From
$109.76
Schneider Electric
MG-24955
MG-24955
In Stock
From
$22.27
Schneider Electric
MG-24958
MG-24958
In Stock
From
$23.04
Schneider Electric
MG-25388
MG-25388
In Stock
From
$116.12
Schneider Electric
MG-25526
MG-25526
In Stock
From
$174.23
Schneider Electric
MG-25648
MG-25648
Limited Stock
From
Get Price
Schneider Electric
MG-25662
MG-25662
Limited Stock
From
Get Price
Schneider Electric
MG-60198
MG-60198
In Stock
From
$114.22
Schneider Electric
MG12003N
MG12003N
Limited Stock
From
Get Price
Schneider Electric
MG12004
MG12004
Limited Stock
From
Get Price
Schneider Electric
MG12012
MG12012
In Stock
From
$52.10
Schneider Electric
MG14742
MG14742
Limited Stock
From
Get Price
Schneider Electric
MG15005
MG15005
Limited Stock
From
Get Price
Schneider Electric
MG15011
MG15011
Limited Stock
From
Get Price
Schneider Electric
MG15012
MG15012
Limited Stock
From
Get Price
Schneider Electric
MG15015
MG15015
Limited Stock
From
Get Price
Schneider Electric
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.