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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
QBA321256
QBA321256
In Stock
From
$406.24
Square D
125
240
QBA321756
QBA321756
In Stock
From
$474.04
Square D
175
240
QBA322256
QBA322256
In Stock
From
$408.85
Square D
225
240
QBL22070
QBL22070
In Stock
From
$269.78
Square D
70
240
QBL22080
QBL22080
In Stock
From
$234.78
Square D
80
240
QBL22090
QBL22090
In Stock
From
$295.53
Square D
90
240
QBL22100
QBL22100
In Stock
From
$298.88
Square D
100
240
QBL22110
QBL22110
In Stock
From
$384.07
Square D
110
240
QBM22200
QBM22200
In Stock
From
$379.66
Square D
200
240
QBM22250
QBM22250
In Stock
From
$106.54
Schneider Electric
250
240
QDA320706
QDA320706
In Stock
From
$423.13
Square D
70
240
QDA320806
QDA320806
In Stock
From
$423.39
Square D
80
240
QDA320906
QDA320906
In Stock
From
$424.40
Square D
90
240
QDA321106
QDA321106
In Stock
From
$840.77
Square D
110
240
QDA321256
QDA321256
In Stock
From
$709.98
Square D
125
240
QDA321506
QDA321506
In Stock
From
$559.22
Square D
150
240
QDA321756
QDA321756
In Stock
From
$342.45
Square D
175
240
QDA322006
QDA322006
In Stock
From
$684.46
Square D
200
240
QDA322256
QDA322256
In Stock
From
$641.08
Square D
225
240
QDL22080
QDL22080
In Stock
From
$698.58
Square D
80
240
QDL22090
QDL22090
In Stock
From
$548.34
Schneider Electric
90
240
QDL22100
QDL22100
In Stock
From
$373.47
Schneider Electric
100
240
QDL22110
QDL22110
In Stock
From
$531.09
Square D
110
240
QDL22175
QDL22175
In Stock
From
$624.00
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.