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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
QS2200
QS2200
In Stock
From
$228.20
Siemens
200
240
QS2200H
QS2200H
In Stock
From
$358.42
Siemens
200
240
QS2225
QS2225
In Stock
From
$283.51
Siemens
225
240
QS2225H
QS2225H
In Stock
From
$353.70
Siemens
225
240
QSA1515
QSA1515
In Stock
From
$87.80
Siemens
15
240
QT1-1520
QT1-1520
In Stock
From
$10.38
Siemens
20
240
RC3830
RC3830
In Stock
From
$47.87
Zinsco
30
240
RD316T32W
RD316T32W
In Stock
From
$9,317.11
Eaton
1600
600
RD316T35W
RD316T35W
In Stock
From
$8,745.43
Cutler Hammer
1600
600
RD316T52W
RD316T52W
In Stock
From
$4,412.61
Eaton
1600
600
RD316T92W
RD316T92W
In Stock
From
$7,811.18
Eaton
1600
600
RD320T107W
RD320T107W
In Stock
From
$4,303.26
Westinghouse
2000
600
RD320T32W
RD320T32W
In Stock
From
$12,591.23
Cutler Hammer
2000
600
RD320T33W
RD320T33W
In Stock
From
$8,213.67
Cutler Hammer
2000
600
RD320T35W
RD320T35W
In Stock
From
$14,732.03
Eaton
2000
600
RD320T52W
RD320T52W
In Stock
From
$6,166.28
Eaton
2000
600
RD325T32W
RD325T32W
In Stock
From
$12,140.98
Eaton
2500
600
RD325T35W
RD325T35W
In Stock
From
$12,231.82
Eaton
2500
600
RD63F200
RD63F200
In Stock
From
$4,943.99
Siemens
2000
600
RDC316T36W
RDC316T36W
In Stock
From
$14,273.61
Cutler Hammer
1600
600
RDC320T36W
RDC320T36W
In Stock
From
$7,116.18
Eaton
2000
600
RDC325T36W
RDC325T36W
In Stock
From
$39,628.11
Cutler Hammer
2500
600
RG1000
RG1000
In Stock
From
$164.95
Square D
1000
600
RG1600
RG1600
In Stock
From
$14,734.08
Square D
1600
600
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.