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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.
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Part Number
PRICE
Manufacturer
QO31005273
QO31005273
In Stock
From
$222.19
Schneider Electric
QO316EC10
QO316EC10
In Stock
From
$123.69
Schneider Electric
QO320CP
QO320CP
In Stock
From
$76.34
Schneider Electric
QO320EC10
QO320EC10
In Stock
From
$75.04
Schneider Electric
QO330CP
QO330CP
In Stock
From
$148.78
Schneider Electric
QO332EC10
QO332EC10
Limited Stock
From
Get Price
Schneider Electric
QO340D
QO340D
In Stock
From
$212.84
Schneider Electric
QO360CP
QO360CP
In Stock
From
$55.79
Schneider Electric
QOB215SWN1021
QOB215SWN1021
In Stock
From
$617.14
Schneider Electric
QOB220VHFT
QOB220VHFT
In Stock
From
$75.55
Schneider Electric
QOB2301200
QOB2301200
In Stock
From
$130.67
Schneider Electric
QOH3100X
QOH3100X
Limited Stock
From
Get Price
Schneider Electric
QOT230
QOT230
In Stock
From
$52.77
Schneider Electric
QOU1151200
QOU1151200
In Stock
From
$131.31
Schneider Electric
QOU1151201
QOU1151201
In Stock
From
$64.07
Schneider Electric
QOU1203100
QOU1203100
In Stock
From
$21.18
Schneider Electric
QOU2205283
QOU2205283
In Stock
From
$101.14
Schneider Electric
QOU3807100
QOU3807100
In Stock
From
$355.37
Schneider Electric
QOUR115
QOUR115
In Stock
From
$65.73
Schneider Electric
QOUR210
QOUR210
In Stock
From
$80.19
Schneider Electric
QOUR215
QOUR215
In Stock
From
$67.88
Schneider Electric
QOUR225
QOUR225
In Stock
From
$80.80
Schneider Electric
QOUR235
QOUR235
In Stock
From
$76.00
Schneider Electric
QOUR325
QOUR325
In Stock
From
$313.86
Schneider Electric
Popular Molded Case Circuit Breaker Manufacturers
Eaton
Square D
ABB
Siemens

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.