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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
HOM150
HOM150
In Stock
From
$6.10
Square D
50
120
HOM245GFI
HOM245GFI
In Stock
From
$107.83
Schneider Electric
45
240
HP3B160
HP3B160
In Stock
From
$6,399.39
Siemens
1600
600
HP3F160
HP3F160
In Stock
From
$1,451.52
Siemens
1600
600
HPD63B160
HPD63B160
In Stock
From
$5,394.23
Siemens
1600
600
HPD63F160
HPD63F160
In Stock
From
$2,710.93
Siemens
1600
600
HPXD63B120H
HPXD63B120H
In Stock
From
$2,552.14
Siemens
1200
600
HPXD63B160
HPXD63B160
In Stock
From
$5,586.73
Siemens
1600
600
HQJ23B200H
HQJ23B200H
In Stock
From
$863.66
Siemens
200
240
HQJ23B225H
HQJ23B225H
In Stock
From
$331.79
Siemens
225
240
HQJ3B110H
HQJ3B110H
In Stock
From
$1,441.49
Siemens
110
240
HQJ3B225H01S01
HQJ3B225H01S01
In Stock
From
$773.68
Siemens
225
240
HR3F200
HR3F200
In Stock
From
$1,523.78
Siemens
2000
600
HRD63B200
HRD63B200
In Stock
From
$23,954.63
Siemens
2000
600
HRD63F200
HRD63F200
In Stock
From
$8,282.50
Siemens
2000
600
HRXD63B180
HRXD63B180
In Stock
From
$53,877.44
Siemens
1800
600
HRXD63B200
HRXD63B200
In Stock
From
$12,704.82
Siemens
2000
600
JA2200
JA2200
In Stock
From
$356.03
Westinghouse
200
600
JA2200W
JA2200W
Limited Stock
From
Get Price
Westinghouse
200
600
JA22250M
JA22250M
In Stock
From
$786.32
Westinghouse
225
600
JA3100
JA3100
In Stock
From
$594.50
Cutler Hammer
100
600
JA3125
JA3125
In Stock
From
$206.96
Westinghouse
125
600
JA3125W
JA3125W
In Stock
From
$428.07
Westinghouse
125
600
JA3150
JA3150
In Stock
From
$303.63
Westinghouse
150
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.