Manufacturing of molded case circuit breakers, 1000 volts or less

Facility	City	State	Employees	Status
Acopian Technical Company	Easton	PA	20–99	● ACTIVE
Advanced Conversion Technology INC	Middletown	PA	100–499	● ACTIVE
American Superconductor CORP	Ayer	MA	100–499	● ACTIVE
Ametek Programmable Power, INC.	San Diego	CA	100–499	● ACTIVE
Burton Wire & Cable, LLC	Hooksett	NH	20–99	● ACTIVE
Calex Mfg. Co., INC.	Concord	CA	—	● ACTIVE
Capstone Green Energy CORP	Van Nuys	CA	100–499	● ACTIVE
Control Solutions LLC	Aurora	IL	20–99	● ACTIVE
Covaris, LLC	Woburn	MA	—	● ACTIVE
CRCpi Radant Technologies Division INC.	Stow	MA	20–99	● ACTIVE
Diversified Power International, LLC	Piney Flats	TN	—	● ACTIVE
EHElectric Hydrogen CO	Devens	MA	100–499	● ACTIVE
Elevate Healthcare, INC.	Sarasota	FL	100–499	● ACTIVE
Emcom, INC.	Auburn	NY	100–499	● ACTIVE
Esl Power Systems, INC.	Corona	CA	100–499	● ACTIVE
Eti INC	South Bend	IN	20–99	● ACTIVE
Ferrotec (usa) Corporation	Livermore	CA	100–499	● ACTIVE
Grace Industries INC	Fredonia	PA	20–99	● ACTIVE
Harold Beck & Sons, INC.	Newtown	PA	100–499	● ACTIVE
Heale Manufacturing CO LLC	Waukesha	WI	—	● ACTIVE
International Rectifier Hirel Products, INC.	Leominster	MA	100–499	● ACTIVE
K & H Industries, INC.	Hamburg	NY	20–99	● ACTIVE
Lockwood Industries, LLC	Valencia	CA	100–499	● ACTIVE
Mesa Products INC	Tulsa	OK	100–499	● ACTIVE
Mk Magnetics, INC.	Adelanto	CA	20–99	● ACTIVE

FactoryRegistry lists 1,437 facilities whose primary industry classification is one of the 1 industry above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced molded case circuit breakers, 1000 volts or less, in the shares shown above, and does not say which establishments. Where a plant’s own website or a federal registry names what that plant makes, it appears on the plant’s own page with the source named.

The U.S. Census Bureau recorded this product line in 1 US manufacturing industry in the 2022 Economic Census, as the most specific line that industry reported, where 7 establishments reported producing it.

These are counts of establishments by industry: the Economic Census publishes them as industry totals and never as a list of plants.

NAPCS collection code 2039450000. Source for the product line, the establishment counts and the shares: U.S. Census Bureau, 2022 Economic Census (ECNNAPCSIND2022). Federal source data is public domain. Facility records are compiled separately by FactoryRegistry and carry their own sources.