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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
NDG3B150L	In Stock From $843^.76	Siemens	150	600
NGB3K030B	In Stock From $637^.65	Siemens	30	600
NLK3N400	In Stock From $1,023^.43	Siemens	400	600
NNX3P100	In Stock From $2,160^.84	Siemens	1000	600
QJ3M200	In Stock From $76^.64	Siemens	200	240
QR22B225	In Stock From $502^.30	Siemens	225	240
QRH23B150L	In Stock From $746^.22	Siemens	150	240
SHMD6B600LSI	In Stock From $5,149^.01	Siemens	600	600
SHMD6B600LSIGH	In Stock From $7,648^.85	Siemens	600	600
SHMD6B800LIH	In Stock From $4,682^.35	Siemens	800	600
SHND6A100LSI	In Stock From $7,851^.75	Siemens	1000	600
SHTD63F2000H	In Stock From $348^.24	Siemens	2000	600
SKP3F120	In Stock From $5,890^.46	Siemens	1200	600
SKP3F120G	In Stock From $3,039^.97	Siemens	1200	600
VL630N	In Stock From $1,477^.09	Siemens	630	690
3TA4P85-00	In Stock From $842^.96	Siemens	-	-
3VU1300-2ML00	In Stock From $93^.82	Siemens	-	-
5SL4204-7CC	In Stock From $14^.87	Siemens	4	230
5SL6203-7	Limited Stock From Get Price	Siemens	3	230
5SL6204-7	In Stock From $24^.07	Siemens	4	230
5SL6210-7	In Stock From $46^.93	Siemens	10	230
5SM1926-7X	In Stock From $58^.06	Siemens	25	500
5SM2106	Limited Stock From Get Price	Siemens	10	230
5SM2121-6	Limited Stock From Get Price	Siemens	25	230

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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.