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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
LRA36600U43X
LRA36600U43X
In Stock
From
$12,156.19
Square D
600
600
LRL36600U31X
LRL36600U31X
In Stock
From
$6,602.38
Schneider Electric
600
600
MG24469
MG24469
In Stock
From
$96.12
Square D
20
240
MGF36800
MGF36800
In Stock
From
$5,628.07
Square D
800
600
MGL26800
MGL26800
In Stock
From
$7,294.07
Schneider Electric
800
600
MGL36300
MGL36300
In Stock
From
$4,318.07
Square D
300
600
MGL36350
MGL36350
In Stock
From
$2,132.45
Schneider Electric
350
600
MGL36400
MGL36400
In Stock
From
$2,027.29
Square D
400
600
MGL36450
MGL36450
In Stock
From
$3,445.80
Schneider Electric
450
600
MGL36600
MGL36600
In Stock
From
$5,921.96
Square D
600
600
MGL36700
MGL36700
In Stock
From
$4,087.05
Schneider Electric
700
600
MGL36800
MGL36800
In Stock
From
$6,437.58
Square D
800
600
MGM36800
MGM36800
In Stock
From
$2,464.00
Schneider Electric
800
600
MGP26600
MGP26600
In Stock
From
$3,006.91
Schneider Electric
600
600
MGP26800
MGP26800
In Stock
From
$4,914.97
Schneider Electric
800
600
MGP36400
MGP36400
In Stock
From
$3,438.30
Square D
400
600
MGP36500
MGP36500
In Stock
From
$4,687.08
Square D
500
600
MGP36700
MGP36700
In Stock
From
$7,081.71
Schneider Electric
700
600
MGP36800
MGP36800
In Stock
From
$3,648.66
Square D
800
600
MHL360008M
MHL360008M
In Stock
From
$1,225.46
Square D
800
600
MHL361200
MHL361200
In Stock
From
$4,242.72
Square D
1200
600
MJF36600
MJF36600
In Stock
From
$5,831.00
Square D
600
600
MJF36800
MJF36800
In Stock
From
$8,806.54
Schneider Electric
800
600
MJP36600
MJP36600
In Stock
From
$4,988.32
Schneider Electric
600
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.