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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
QJ2M070H
QJ2M070H
In Stock
From
$348.81
Siemens
70
240
QJ2M070HL
QJ2M070HL
In Stock
From
$364.63
Siemens
70
240
QJ2M070L
QJ2M070L
In Stock
From
$137.14
Siemens
70
240
QJ2M080
QJ2M080
In Stock
From
$155.60
Siemens
80
240
QJ2M080H
QJ2M080H
In Stock
From
$327.50
Siemens
80
240
QJ2M080HL
QJ2M080HL
In Stock
From
$327.50
Siemens
80
240
QJ2M080L
QJ2M080L
In Stock
From
$155.60
Siemens
80
240
QJ2M090
QJ2M090
In Stock
From
$154.80
Siemens
90
240
QJ2M090HL
QJ2M090HL
In Stock
From
$327.50
Siemens
90
240
QJ2M100
QJ2M100
In Stock
From
$257.14
Siemens
100
240
QJ2M100H
QJ2M100H
In Stock
From
$345.54
Siemens
100
240
QJ2M100HL
QJ2M100HL
In Stock
From
$344.33
Siemens
100
240
QJ2M100L
QJ2M100L
In Stock
From
$257.14
Siemens
100
240
QJ2M110
QJ2M110
In Stock
From
$153.28
Siemens
110
240
QJ2M110H
QJ2M110H
In Stock
From
$350.30
Siemens
110
240
QJ2M110HL
QJ2M110HL
In Stock
From
$350.30
Siemens
110
240
QJ2M110L
QJ2M110L
In Stock
From
$153.28
Siemens
110
240
QJ2M125
QJ2M125
In Stock
From
$199.21
Siemens
125
240
QJ2M125H
QJ2M125H
In Stock
From
$367.91
Siemens
125
240
QJ2M125HL
QJ2M125HL
In Stock
From
$361.60
Siemens
125
240
QJ2M125L
QJ2M125L
In Stock
From
$199.21
Siemens
125
240
QJ2M150
QJ2M150
In Stock
From
$283.99
Siemens
150
240
QJ2M150H
QJ2M150H
In Stock
From
$411.92
Siemens
150
240
QJ2M150HL
QJ2M150HL
In Stock
From
$411.92
Siemens
150
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.