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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
5SJ4310-8HG42	In Stock From $202^.09	Siemens	10	277
5SJ4311-8HG42	In Stock From $197^.30	Siemens	11	277
5SJ4316-7HG42	In Stock From $162^.76	Siemens	16	277
5SJ4320-7HG42	In Stock From $418^.20	Siemens	20	277
5SJ4330-7HG42	Limited Stock From Get Price	Siemens	30	277
5SJ4332-8HG42	In Stock From $240^.30	Siemens	32	277
5SJ4340-7HG42	In Stock From $185^.55	Siemens	40	277
5SJ6-350-6	Limited Stock From Get Price	Siemens	50	277
5SJ6106-6	Limited Stock From Get Price	Siemens	6	277
5SJ6106-7FC	Limited Stock From Get Price	Siemens	6	277
5SJ6125-7	Limited Stock From Get Price	Siemens	25	277
5SJ6206-7	In Stock From $32^.42	Siemens	6	277
5SJ6210-7	In Stock From $22^.44	Siemens	10	277
5SJ6225-7	In Stock From $80^.92	Siemens	25	277
5SJ6310-6	Limited Stock From Get Price	Siemens	10	277
5SJ6310-7	Limited Stock From Get Price	Siemens	10	277
5SJ6410-7	Limited Stock From Get Price	Siemens	10	277
5SL6110-7	In Stock From $10^.91	Siemens	-	-
5SP3-732	In Stock From $58^.46	Siemens	32	400
5SP4192-6	In Stock From $64^.62	Siemens	125	400
5SP43637	Limited Stock From Get Price	Siemens	63	400
5SP44507	Limited Stock From Get Price	Siemens	100	400
5SP44637	Limited Stock From Get Price	Siemens	63	400
5SP4491-7	In Stock From $768^.61	Siemens	125	400

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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.