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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
QBA221752
QBA221752
In Stock
From
$533.93
Square D
175
240
QBA221754
QBA221754
In Stock
From
$353.93
Square D
175
240
QBA222251
QBA222251
In Stock
From
$330.37
Square D
225
240
QBA222252
QBA222252
In Stock
From
$314.99
Square D
225
240
QBA222254
QBA222254
In Stock
From
$691.49
Square D
225
240
QBL22175
QBL22175
In Stock
From
$308.33
Square D
175
240
QBL22200LU
QBL22200LU
In Stock
From
$347.75
Square D
200
240
QBL32000S22
QBL32000S22
In Stock
From
$786.79
Square D
200
240
QBP22125TM
QBP22125TM
In Stock
From
$364.00
Square D
125
240
QBP32150TM
QBP32150TM
In Stock
From
$255.13
Square D
150
240
QDA221001
QDA221001
In Stock
From
$472.65
Square D
100
240
QDA221004
QDA221004
In Stock
From
$766.87
Square D
100
240
QDA221251
QDA221251
In Stock
From
$492.76
Square D
125
240
QDA221252
QDA221252
In Stock
From
$485.64
Square D
125
240
QDA221254
QDA221254
In Stock
From
$386.63
Square D
125
240
QDA222001
QDA222001
In Stock
From
$679.03
Square D
200
240
QDA222004
QDA222004
In Stock
From
$445.05
Square D
200
240
QDA222251
QDA222251
In Stock
From
$424.82
Square D
225
240
QDA222252
QDA222252
In Stock
From
$422.37
Square D
225
240
QDA222254
QDA222254
In Stock
From
$311.33
Square D
225
240
QDA32070
QDA32070
In Stock
From
$655.24
Square D
70
240
QDA32090
QDA32090
In Stock
From
$486.07
Square D
90
240
QDA321006
QDA321006
In Stock
From
$427.38
Square D
100
240
QDA32175
QDA32175
In Stock
From
$644.24
Schneider Electric
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.