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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
MGN61314
MGN61314
In Stock
From
$145.44
Schneider Electric
3
480
MGN61319
MGN61319
In Stock
From
$33.71
Square D
10
480
MGN61320
MGN61320
In Stock
From
$167.12
Square D
15
480
MGN61351
MGN61351
In Stock
From
$227.99
Square D
8
480
PGL36060CU33A
PGL36060CU33A
In Stock
From
$5,143.84
Square D
600
600
PJL36100
PJL36100
In Stock
From
$7,914.31
Square D
100
600
PLL34080
PLL34080
In Stock
From
$4,508.00
Square D
800
480
PLL34100
PLL34100
In Stock
From
$13,752.91
Square D
1000
480
QBM22175TN
QBM22175TN
In Stock
From
$735.33
Square D
175
240
QBP22100TM
QBP22100TM
In Stock
From
$342.86
Square D
100
240
QBP22200TM
QBP22200TM
In Stock
From
$229.72
Square D
200
240
QBP22200TP
QBP22200TP
In Stock
From
$660.79
Square D
200
240
QBP32070TM
QBP32070TM
In Stock
From
$795.23
Square D
70
240
QBP32100TM
QBP32100TM
In Stock
From
$393.91
Square D
100
240
QDA220801
QDA220801
In Stock
From
$407.77
Square D
80
240
QGA221004
QGA221004
In Stock
From
$480.60
Square D
100
240
QGA222002
QGA222002
In Stock
From
$1,153.37
Square D
200
240
QGA222252
QGA222252
In Stock
From
$401.24
Square D
225
240
QGA32110
QGA32110
In Stock
From
$2,010.84
Square D
110
240
QGA32125
QGA32125
In Stock
From
$1,578.40
Square D
125
240
QGA32200
QGA32200
In Stock
From
$938.57
Square D
200
240
QGA32225YP
QGA32225YP
In Stock
From
$728.27
Square D
225
240
QGL22200LW
QGL22200LW
In Stock
From
$196.09
Square D
200
240
QGP22175TM
QGP22175TM
In Stock
From
$879.26
Square D
175
240
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.