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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
JFC3M300	In Stock From $102^.66	Siemens	300	415
JK2B175	In Stock From $890^.26	ITE	175	600
JKL2B125	In Stock From $831^.06	Siemens	125	600
JKL2B175	In Stock From $831^.06	Siemens	175	600
JKL2B400	In Stock From $237^.39	Siemens	400	600
JKL3B100	In Stock From $31^.99	Siemens	100	600
JKL3B125	In Stock From $1,043^.83	Siemens	125	600
JKL3B150	In Stock From $557^.24	Siemens	150	600
JKL3B175	In Stock From $982^.75	Siemens	175	600
JKL3B200	In Stock From $1,036^.64	Siemens	200	600
JKL3B225	In Stock From $898^.74	ITE	225	600
JKL3B250	In Stock From $450^.52	Siemens	250	600
JKL3B275	In Stock From $696^.73	ITE	275	600
JKL3B350	In Stock From $1,182^.01	Siemens	350	600
JKL3B400	In Stock From $1,430^.70	Siemens	400	600
JKL3F400	In Stock From Get Price	Siemens	400	600
K3B100	In Stock From $682^.23	Siemens	100	600
K3B125	In Stock From $366^.15	ITE	125	600
K3B150	In Stock From $422^.72	Siemens	150	600
K3B175	In Stock From $419^.95	Siemens	175	600
K3B200	In Stock From $865^.60	ITE	200	600
K3B225	In Stock From $200^.82	ITE	225	600
K3F225	In Stock From $22^.01	ITE	225	600
KL3B250	In Stock From $894^.60	Siemens	250	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.