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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
5SQ13-G4A	Limited Stock From Get Price	Siemens	4	230
5SQ2-170-2YA05	Limited Stock From Get Price	Siemens	5	230
5SQ2-270-2YA04	Limited Stock From Get Price	Siemens	4	230
5SQ2-370-2YA50	Limited Stock From Get Price	Siemens	50	230
5SU1-156-0KV16	Limited Stock From Get Price	Siemens	16	230
5SU3747-0KW10	In Stock From $34^.17	Siemens	10	400
5SX2114-7	In Stock From $8^.19	Siemens	0.3	277
5SX2305-8	In Stock From $40^.84	Siemens	0.5	480
5SX2315-8	In Stock From $84^.89	Siemens	1.6	480
5SY4416-7	Limited Stock From Get Price	Siemens	16	400
5SY4516-7	In Stock From $77^.77	Siemens	16	277
5SY62-MCB-C6	In Stock From $35^.75	Siemens	6	400
B210R00S01	In Stock From $20^.96	Siemens	10	240
EQ9481	In Stock From $276^.68	Siemens	150	240
ET-1571	In Stock From $41^.28	Siemens	15	240
ET1-2681	In Stock From $11^.11	Siemens	5	600
ETS2639	In Stock From $300^.66	ITE	100	480
HB2B035	In Stock From $114^.48	Siemens	35	240
HB2B045	In Stock From $113^.63	Siemens	45	240
3RH21311FB40	In Stock From $108^.64	Siemens	-	-
3VE1010-2J	In Stock From $90^.20	Siemens	-	-
3VE1015-2DU00	In Stock From $193^.07	Siemens	-	-
3VE3011-6JR00	In Stock From $128^.31	Siemens	-	-
3VE4-200-0CQ00	In Stock From $16^.80	Siemens	-	-

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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.