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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
HB2B070
HB2B070
In Stock
From
$167.66
Siemens
70
240
HB2B100
HB2B100
In Stock
From
$177.32
Siemens
100
240
HB3B020HH
HB3B020HH
In Stock
From
$150.39
Siemens
20
240
HB3B030HH
HB3B030HH
In Stock
From
$51.30
Siemens
30
240
HB3B040HH
HB3B040HH
In Stock
From
$183.10
Siemens
40
240
HB3B060HH
HB3B060HH
In Stock
From
$111.88
Siemens
60
240
HBAX1030
HBAX1030
In Stock
From
$228.70
Cutler Hammer
30
240
HBAX2020
HBAX2020
In Stock
From
$354.70
Westinghouse
20
240
HBAX2100
HBAX2100
In Stock
From
$226.57
Westinghouse
100
240
HCA2100
HCA2100
In Stock
From
$1,065.24
Westinghouse
100
240
HCA2125
HCA2125
In Stock
From
$911.53
Westinghouse
125
240
HCA2150
HCA2150
In Stock
From
$355.77
Westinghouse
150
240
HCA2150W
HCA2150W
In Stock
From
$503.51
Cutler Hammer
150
240
HCA2175
HCA2175
In Stock
From
$1,303.88
Westinghouse
175
240
HCA3125W
HCA3125W
In Stock
From
$222.22
Cutler Hammer
125
240
HCA3150W
HCA3150W
In Stock
From
$198.62
Cutler Hammer
150
240
HCA3225W
HCA3225W
In Stock
From
$982.00
Cutler Hammer
225
240
HDA260152BC
HDA260152BC
In Stock
From
$427.02
Square D
15
600
HDA260201
HDA260201
In Stock
From
$754.68
Schneider Electric
20
600
HDA260506
HDA260506
In Stock
From
$427.02
Square D
50
600
HDA260904
HDA260904
In Stock
From
$575.20
Square D
90
600
HDA36015AA
HDA36015AA
In Stock
From
$735.82
Square D
15
600
HDA36015AABC
HDA36015AABC
In Stock
From
$735.82
Square D
15
600
HDA36015AABCSD
HDA36015AABCSD
In Stock
From
$735.82
Square D
15
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.