Facebook  |  Twitter  |  LinkedIn  |  Print

Residential & Commercial Controls

The Residential & Commercial Controls Section develops technical standards and guidelines for its products.

(Also see the Industrial Automation Section)


  1. Automatic controls, mechanically, electro-mechanically, electrically or electronically actuated, responsive to temperature, pressure, humidity, light, electrostatic effect, flow or liquid level, principally used in residential equipment or appliances for comfort heating, air-conditioning, refrigeration, clothes washing, drying or ironing, personal grooming, water heating or cooking.
  2. Panels for the control of air-conditioning and refrigeration, the combined capacity of which will not exceed a rating equivalent to 12 tons.
  3. Panels for the control of electric comfort heating.
  4. Relays which control the starting windings of fractional horsepower split phase and capacitor motors used principally for the applications outlined in paragraph 1.
  5. Inherent overload protective devices for fractional horsepower split phase and capacitor motors used principally for the applications outlined in paragraph 1.
  6. Motor Driven and other types of programming sequencing devices used principally for the applications outlined in paragraph 1.
  7. Class 2 and 3 transformers designed primarily for use with residential controls.
  8. The following are specifically excluded:
    • Refrigeration expansion and pressure control valves.
    • Manually operated nonelectric steam or hot water specialties such as radiator valves, vent valves, temperature and pressure relief valves, traps and steam regulating accessories.
    • Relays, contactors, starters and overload devices which fall within the product scope of the Industrial Control and Systems Section.
    • Precision snap-acting switches which fall within the product scope of the Precision Snap-Acting Switch Section.
    • Constant level float valves for oil burners.
    • Transformers included in the scopes of the 8-ST, 8-TR, and 8-EI Section.

Click here for detailed product scope information.

Technical Activities

Standards play a vital part in the design, production, and distribution of products destined for both national and international com­merce. Sound technical standards benefit the user, as well as the manufacturer, by improving safety, bringing about economies in product, eliminating misunderstandings between manufacturer and purchaser, and assisting the pur­chaser in selecting and obtaining the proper product for his particular need.

NEMA devotes much of its time, effort, and resources to voluntary standardization activities. NEMA standards are offered and recommended to become American National Standards under the procedures of the American National Standards Institute, usually under the canvass method. This decision rests with the particular subdivision or subdivisions concerned. NEMA standards are also often submitted for consideration as IEC standards components or references. It is the intent of the association to continue its support of these, and many more, activities as the best method to continue providing sound and safe electrical products for the use of all.

Technical subcommittees:

  • Thermostats
  • Smartgrid
  • Electric water heater controls
  • Electrical and electronic controls

The 3DC Section has developed the Energy Aware programmable thermostat certification program to replace the sunsetted Energy Star label. Products are evaluated to the DC3, Annex A efficiency requirements by third party test laboratories.

Website: http://www.getenergyaware.com/

Government Affairs

Through NEMA, the section develops industry positions on legislative and regulatory initiatives that may affect member products, markets, and customers. NEMA's work has resulted in contributions to public policy development and in promoting competitiveness, technological progress, and public safety. On the Government Affairs homepage members can search for and e-mail federal representatives to convey opinions regarding energy policy or other issues related to the electroindustry.

NEMA Government Affairs provides specific services to its members and information in the areas of Environment, Health & Safety; Energy; and International Trade & Commerce.

Market Economics

Through NEMA, member companies are able to develop and implement tailored, industry-specific market and statistical programs that benefit participating companies. Reports may include:

  • Product orders and sales
  • Market forecasting
  • Shipments by trading areas
  • Channels of distribution
  • Financial and operating ratios
  • Wages and benefits
  • Foreign trade

The association also conducts economic analyses on the impact of legislation and regulations on member products, and monitors and reports on key industry market indicators. All programs comply with NEMA statistical confidentiality policies. For more information, please see Business & Economy.


Membership in NEMA is open to any firm actively engaged in the manufacture in North America of a product within the NEMA scope and for sale in the open market. Membership of foreign firms is subject to product section policies and NEMA Board of Governors approval.

NEMA operates on a fee-for-service basis. Each product section establishes its projects and activities and approves an annual operating budget. Visit Joining NEMA for more information on membership.


Related Manufacturers

Related Standards and Documents

Copyright © NEMA. All rights reserved. (703) 841-3200, 1300 North 17th Street, Suite 900, Arlington, Virginia 22209