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Molded Case Circuit Breaker

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Molded Case Circuit Breaker

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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
JL63B300	In Stock From $785^.19	ITE	300	600
LJ63B450	In Stock From $460^.80	ITE	450	600
LJ63B600	In Stock From $1,294^.10	ITE	600	600
LNX3G120	In Stock From $25,941^.65	Siemens	1200	600
LNX3T100	In Stock From $24,510^.00	Siemens	1000	480
MBK225	In Stock From $357^.83	Siemens	225	240
MBKED3100	In Stock From $505^.91	Siemens	100	480
MBKED3125	In Stock From $848^.76	Siemens	125	480
MBKFD3150	In Stock From $1,298^.10	Siemens	150	600
MBKJD1400	In Stock From $3,277^.09	Siemens	400	600
MBKJD3400	In Stock From $3,858^.89	Siemens	400	600
MBKQJ1150	In Stock From $181^.71	Siemens	150	240
MBKQJ1225	In Stock From $602^.76	Siemens	225	240
MBKQJ3	In Stock From $538^.14	Siemens	-	600
MBKQJ3125	In Stock From $1,305^.77	Siemens	125	240
MBKQJ3150	In Stock From $1,213^.54	Siemens	150	240
MBKQJ3150H	In Stock From $1,609^.74	Siemens	150	240
MBKQJ3200H	In Stock From $3,247^.49	Siemens	200	240
MBKQJ3225H	In Stock From $1,556^.77	Siemens	225	240
MP23020	In Stock From $37^.90	Siemens	30	240
MQJ3125	In Stock From $474^.26	Murray	125	240
P1520	In Stock From $64^.10	Siemens	20	120
Q11500S01	In Stock From $102^.69	Siemens	15	120
Q120AF	In Stock From $61^.56	Siemens	20	120

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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.