Refine Results

In Stock

Applied Filters:

Molded Case Circuit Breaker

American

Subcategory

Molded Case Circuit Breaker

Manufacturers (1)

American

Amperage

All

Voltage

All

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.

SORT BY

Part Number	PRICE	Manufacturer	Amperage	Voltage
NEF431020R	In Stock From $76^.26	American	20	480
NEF431030R	In Stock From $311^.55	American	30	480
NEF431040R	In Stock From $97^.21	American	40	480
NEF431050R	In Stock From $56^.64	American	50	480
NEF431080R	In Stock From $401^.14	Federal Pacific	80	480
NEF433030	In Stock From $188^.90	Federal Pacific	30	480
NEF433100	In Stock From $345^.67	American	100	480
NEF435015	In Stock From $156^.82	American	15	480
NEF435100	In Stock From $463^.99	Federal Pacific	100	480
NEF437060	In Stock From $1,060^.92	Federal Pacific	60	480
NEF437100	In Stock From $327^.76	Federal Pacific	100	480
NEF631060	In Stock From $236^.41	American	60	600
NEF631070	In Stock From $545^.33	Federal Pacific	70	600
NFJ424150	In Stock From $602^.61	Federal Pacific	150	480
NFJ434100	In Stock From $195^.52	Federal Pacific	100	480
NFJ434200	In Stock From $1,246^.24	Federal Pacific	200	480
NFJ434250	In Stock From $1,172^.90	American	250	480
NFJ437125	In Stock From $615^.49	Federal Pacific	125	480
NFJ437250	In Stock From $603^.75	Federal Pacific	250	480
NFJ631125	In Stock From $549^.53	Federal Pacific	125	600
NFJ631200	In Stock From $1,066^.66	Federal Pacific	200	600
NJL631150	In Stock From $335^.26	Federal Pacific	150	600
NJL631175R	In Stock From $2,356^.38	American	175	600
NJL631200R	In Stock From $1,084^.07	Federal Pacific	200	600

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.