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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
JKL2B225	Limited Stock From Get Price	ITE	225	600
JKL2B250	Limited Stock From Get Price	Siemens	250	600
JKL2B300	Limited Stock From Get Price	ITE	300	600
JKL2B350	Limited Stock From Get Price	ITE	350	600
K3B070	Limited Stock From Get Price	Siemens	70	600
K3B090	Limited Stock From Get Price	Siemens	90	600
K3B250	Limited Stock From Get Price	ITE	250	600
K3B300	Limited Stock From Get Price	ITE	300	600
K3B350	Limited Stock From Get Price	Siemens	350	600
K3B400	Limited Stock From Get Price	ITE	400	600
K3B600	Limited Stock From Get Price	ITE	600	600
KL3B600	Limited Stock From Get Price	Siemens	600	600
KMB3B600A	Limited Stock From Get Price	Siemens	600	600
KMB3B700A	Limited Stock From Get Price	ITE	700	600
KMB3B800A	Limited Stock From Get Price	Siemens	800	600
LJ62B450	Limited Stock From Get Price	ITE	450	600
LJ62B500	Limited Stock From Get Price	Siemens	500	600
LJ62B600	Limited Stock From Get Price	Siemens	600	600
LJ62S600	Limited Stock From Get Price	ITE	600	600
LJ63S400	Limited Stock From Get Price	Siemens	400	600
LJ63S600A	Limited Stock From Get Price	ITE	600	600
LM2B600	Limited Stock From Get Price	ITE	600	600
LM2B800	Limited Stock From Get Price	ITE	800	600
QP1-B080	Limited Stock From Get Price	ITE	80	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.