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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
NGB1K020B	In Stock From $88^.65	Siemens	20	347
NGB1K025B	In Stock From $113^.41	Siemens	25	347
NGB1K030B	In Stock From $72^.38	Siemens	30	347
NGB1K040B	In Stock From $113^.41	Siemens	40	347
NGB1K045B	In Stock From $102^.61	Siemens	45	347
NGB1K050B	In Stock From $96^.53	Siemens	50	347
NGB1K060B	In Stock From $93^.57	Siemens	60	347
NGB1K070B	In Stock From $162^.17	Siemens	70	347
Q115DFH	In Stock From $244^.42	Siemens	15	120
Q120DFH	In Stock From $152^.34	Siemens	20	120
Q21525CTNC	In Stock From $86^.27	Siemens	25	240
QC123PL	In Stock From $56^.66	Eaton	-	-
QE115	In Stock From $109^.23	Siemens	15	240
QE120H	In Stock From $354^.67	Siemens	20	240
QE240H	In Stock From $448^.80	Siemens	40	240
QO130AFI	In Stock From $36^.02	Square D	30	120
QO3101200	In Stock From $85^.88	Square D	10	240
QO3301200	In Stock From $124^.21	Square D	30	240
QRH22B200L	In Stock From $721^.39	Siemens	200	240
SGLC3606L4XX	In Stock From $4,995^.32	General Electric	600	600
THHQB1115ST1	In Stock From $182^.81	General Electric	15	120
THHQB2115ST1	In Stock From $33^.00	General Electric	15	240
THHQB2120ST1	In Stock From $273^.58	General Electric	20	240
THHQB2140ST1	In Stock From $258^.06	General Electric	40	240

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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.