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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
QJ2B090
QJ2B090
In Stock
From
$133.80
ITE
90
240
QJ2B090H
QJ2B090H
In Stock
From
$327.50
Siemens
90
240
QJ2B090HL
QJ2B090HL
In Stock
From
$327.50
Siemens
90
240
QJ2B090L
QJ2B090L
In Stock
From
$167.64
ITE
90
240
QJ2B100H
QJ2B100H
In Stock
From
$405.44
Siemens
100
240
QJ2B100HL
QJ2B100HL
In Stock
From
$466.10
Siemens
100
240
QJ2B100L
QJ2B100L
In Stock
From
$157.66
ITE
100
240
QJ2B110
QJ2B110
In Stock
From
$153.28
Siemens
110
240
QJ2B110H
QJ2B110H
In Stock
From
$350.30
Siemens
110
240
QJ2B110HL
QJ2B110HL
In Stock
From
$350.30
Siemens
110
240
QJ2B110L
QJ2B110L
In Stock
From
$153.28
Siemens
110
240
QJ2B125
QJ2B125
In Stock
From
$244.01
Siemens
125
240
QJ2B125H
QJ2B125H
In Stock
From
$422.67
Siemens
125
240
QJ2B125HL
QJ2B125HL
In Stock
From
$478.23
Siemens
125
240
QJ2B125L
QJ2B125L
In Stock
From
$144.00
ITE
125
240
QJ2B150H
QJ2B150H
In Stock
From
$411.92
Siemens
150
240
QJ2B150HL
QJ2B150HL
In Stock
From
$411.92
Siemens
150
240
QJ2B150L
QJ2B150L
In Stock
From
$164.91
ITE
150
240
QJ2B175
QJ2B175
In Stock
From
$270.67
Siemens
175
240
QJ2M060
QJ2M060
In Stock
From
$130.54
Siemens
60
240
QJ2M060H
QJ2M060H
In Stock
From
$342.62
Siemens
60
240
QJ2M060HL
QJ2M060HL
In Stock
From
$347.17
Siemens
60
240
QJ2M060L
QJ2M060L
In Stock
From
$130.78
Siemens
60
240
QJ2M070
QJ2M070
In Stock
From
$137.14
Siemens
70
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.