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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.
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Part Number
PRICE
Manufacturer
Amperage
Voltage
J3200TP
J3200TP
Limited Stock
From
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Westinghouse
200
600
J3225TP
J3225TP
Limited Stock
From
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Westinghouse
225
600
JKL3100
JKL3100
Limited Stock
From
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Westinghouse
100
600
JKL3250
JKL3250
Limited Stock
From
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Westinghouse
250
600
JKL3400
JKL3400
Limited Stock
From
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Westinghouse
400
600
K3150RW
K3150RW
Limited Stock
From
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Westinghouse
150
600
K3175RW
K3175RW
Limited Stock
From
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Westinghouse
175
600
K3200RW
K3200RW
Limited Stock
From
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Westinghouse
200
600
K3225RW
K3225RW
Limited Stock
From
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Westinghouse
225
600
KA3200F
KA3200F
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Westinghouse
200
600
KL2200T
KL2200T
Limited Stock
From
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Westinghouse
200
600
KL2250T
KL2250T
Limited Stock
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Westinghouse
250
600
KL3150LG
KL3150LG
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From
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Westinghouse
150
600
KL3175LG
KL3175LG
Limited Stock
From
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Westinghouse
175
600
KL3200LG
KL3200LG
Limited Stock
From
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Westinghouse
200
600
KL3225LG
KL3225LG
Limited Stock
From
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Westinghouse
225
600
KL3250LG
KL3250LG
Limited Stock
From
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Westinghouse
250
600
LAB3250XZ
LAB3250XZ
Limited Stock
From
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Westinghouse
250
600
LAY3250V
LAY3250V
Limited Stock
From
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Westinghouse
250
240
LAY3300V
LAY3300V
Limited Stock
From
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Westinghouse
300
240
LAY3350V
LAY3350V
Limited Stock
From
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Westinghouse
350
240
LAY3400V
LAY3400V
Limited Stock
From
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Westinghouse
400
240
LAY3500V
LAY3500V
Limited Stock
From
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Westinghouse
500
240
LAY3600V
LAY3600V
Limited Stock
From
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Westinghouse
600
240
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.