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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
HL3B450	In Stock From $1,485^.48	Siemens	450	600
HL3B600	In Stock From $1,615^.38	Siemens	600	600
HMY3P800	In Stock From $5,363^.57	Siemens	800	600
HN3B400	In Stock From $1,813^.47	Siemens	400	600
HPB3B160	In Stock From $400^.00	Siemens	1600	600
HQR22B125L	In Stock From $347^.50	Siemens	125	240
HQR22B150L	In Stock From $286^.58	Siemens	150	240
HQR22B200L	In Stock From $1,133^.64	Siemens	200	240
HQR22B225L	In Stock From $300^.78	Siemens	225	240
JD23F400	In Stock From $181^.13	Siemens	400	240
JD2B300	In Stock From $407^.10	Siemens	300	240
JD2B400	In Stock From $501^.45	Siemens	400	240
JJ2B250	In Stock From $1,221^.57	Siemens	250	600
JJ2B300	In Stock From $822^.18	ITE	300	600
JJ2B400	In Stock From $953^.81	ITE	400	600
JJ3S400V	In Stock From $77^.21	Siemens	400	600
JJ62B250	In Stock From $719^.26	Siemens	250	600
JJ62B300	In Stock From $191^.58	Siemens	300	600
JJ63B225	In Stock From $448^.17	Siemens	225	600
JL2B070	In Stock From $740^.36	ITE	70	600
JL2B090	In Stock From $571^.12	ITE	90	600
JL2B150	In Stock From $240^.68	ITE	150	600
JL2B200	In Stock From $1,076^.15	ITE	200	600
JL2B300	In Stock From $605^.32	Siemens	300	600

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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.