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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
HKA3090W
HKA3090W
In Stock
From
$1,493.65
Westinghouse
90
600
HKA3100W
HKA3100W
In Stock
From
$1,187.20
Westinghouse
100
600
HKA3125W
HKA3125W
In Stock
From
$2,208.59
Westinghouse
125
600
HKA3150W
HKA3150W
In Stock
From
$1,337.42
Westinghouse
150
600
HKA3175W
HKA3175W
In Stock
From
$1,675.92
Westinghouse
175
600
HKA3200W
HKA3200W
In Stock
From
$1,776.11
Cutler Hammer
200
600
HKA3225
HKA3225
In Stock
From
$1,957.36
Westinghouse
225
600
HKA3225W
HKA3225W
In Stock
From
$1,957.36
Westinghouse
225
600
HLB2070
HLB2070
In Stock
From
$1,465.32
Westinghouse
70
600
HLB2090
HLB2090
In Stock
From
$1,116.30
Westinghouse
90
600
HLB2100
HLB2100
In Stock
From
$1,365.03
Westinghouse
100
600
HLB2125
HLB2125
In Stock
From
$978.20
Westinghouse
125
600
HLB2150
HLB2150
In Stock
From
$984.70
Cutler Hammer
150
600
HLB2175
HLB2175
In Stock
From
$1,448.90
Cutler Hammer
175
600
HLB2200
HLB2200
In Stock
From
$462.84
Westinghouse
200
600
HLB2225
HLB2225
In Stock
From
$1,662.13
Westinghouse
225
600
HLB2250
HLB2250
In Stock
From
$1,317.20
Westinghouse
250
600
HLB2300
HLB2300
In Stock
From
$41.87
Westinghouse
300
600
HLB2350
HLB2350
In Stock
From
$41.87
Westinghouse
350
600
HLB2400
HLB2400
In Stock
From
$1,190.42
Westinghouse
400
600
HLB2400F
HLB2400F
In Stock
From
$2,620.09
Westinghouse
400
600
HLB3100
HLB3100
In Stock
From
$1,006.36
Cutler Hammer
100
600
HLC2075
HLC2075
In Stock
From
$2,014.58
Westinghouse
75
600
HLC2090
HLC2090
In Stock
From
$2,215.95
Westinghouse
90
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.