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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
KIP36250
KIP36250
In Stock
From
$2,709.78
Square D
250
600
KP3B120
KP3B120
In Stock
From
$2,267.07
Siemens
1200
600
KP3F120
KP3F120
In Stock
From
$1,227.89
ITE
1200
600
LA2070
LA2070
In Stock
From
$944.45
Westinghouse
70
600
LA2100
LA2100
In Stock
From
$1,284.52
Westinghouse
100
600
LA2125
LA2125
In Stock
From
$585.04
Westinghouse
125
600
LA2150
LA2150
In Stock
From
$199.99
Westinghouse
150
600
LA2150PR
LA2150PR
In Stock
From
$1,159.14
Westinghouse
150
600
LA2225
LA2225
In Stock
From
$379.07
Westinghouse
225
600
LA2225PR
LA2225PR
In Stock
From
$3,591.14
Westinghouse
225
600
LA2300
LA2300
In Stock
From
$514.67
Westinghouse
300
600
LA2350
LA2350
In Stock
From
$69.50
Westinghouse
350
600
LA2400
LA2400
In Stock
From
$708.84
Westinghouse
400
600
LA2400PR
LA2400PR
In Stock
From
$83.76
Cutler Hammer
400
600
LA2450
LA2450
In Stock
From
$2,144.16
Westinghouse
450
600
LA2600
LA2600
In Stock
From
$727.62
Westinghouse
600
600
LA3070
LA3070
In Stock
From
$1,749.43
Westinghouse
70
600
LA3090PR
LA3090PR
In Stock
From
$3,693.60
Westinghouse
90
600
LA3125
LA3125
In Stock
From
$745.16
Westinghouse
125
600
LA3175
LA3175
In Stock
From
$941.24
Westinghouse
175
600
LA3175PR
LA3175PR
In Stock
From
$616.98
Westinghouse
175
600
LA3200
LA3200
In Stock
From
$1,053.33
Cutler Hammer
200
600
LA3200PR
LA3200PR
In Stock
From
$1,043.80
Cutler Hammer
200
600
LA3225
LA3225
In Stock
From
$790.56
Westinghouse
225
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.