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National Electrical Manufacturers Association (NEMA) Standards

About NEMA Standards

NEMA defines standards for many commonplace electrical interconnects, as well as outlining manufacturing standards for electrical products, such as various grades of electrical enclosures.


Intertek Inform: Your Gateway to NEMA Standards

Intertek Inform makes it easy for businesses to buy NEMA standards from our website, giving convenient access to guidelines set by the National Electrical Manufacturers Association (NEMA). This streamlines procurement, ensuring businesses can swiftly acquire the necessary standards to enhance quality and competitiveness.

You can purchase individual NEMA Standards in digital PDF or printed (hardcopy) formats on our website. Or you may like to manage your standards with i2i, our secure, configurable, cloud-based platform, accessible through our subscription service.

American National Standard for Electric Meters—Code for Electricity Metering
Supply Chain Best Practices
Standard for Category 6 and 6A, 100 Ohm, Individually Unshielded Twisted Pairs, Indoor Cables (With Or Without An Overall Shield)
American National Standard for Portable Lithium Primary Cells and Batteries—Safety Standard
American National Standard for Electric Power Systems and Equipment—Voltage Ratings (60 Hz)
Ampacities of Cables Installed in Cable Trays
American National Standard for Portable Lithium Primary Cells and Batteries—General and Specifications
The Importance of a Standards-compliant Nurse Call System
Concrete-Tightness of Enclosures, Outlet Boxes, Junction Boxes, and Conduit Fittings
Smart Grid Interoperability Process Reference Manual
American National Standard for Portable Lithium Primary Cells and Batteries—Safety Standard
Power Index Calculation Procedure—Standard Rating Methodology for Power Drive Systems and Complete Drive Modules
ClimateTalk_2.1 CT-485_API Reference R00
Preventive Maintenance of Industrial Control and Systems Equipment
Ampacities of Cables Installed in Cable Trays
American National Standard for Portable Lithium Primary Cells and Batteries—General and Specifications
The Importance of a Standards-compliant Nurse Call System
Concrete-Tightness of Enclosures, Outlet Boxes, Junction Boxes, and Conduit Fittings
Smart Grid Interoperability Process Reference Manual
Application Guide for Isolated Ground Wiring Devices
American National Standard for Portable Lithium Primary Cells and Batteries—Safety Standard
Power Index Calculation Procedure—Standard Rating Methodology for Power Drive Systems and Complete Drive Modules
ClimateTalk_2.1 CT-485_API Reference R00
Preventive Maintenance of Industrial Control and Systems Equipment

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Frequently Asked Questions

NEMA Standards are technical documents published by the National Electrical Manufacturers Association, encompassing over 1,000 standards related to electrical and medical imaging products. These standards are grounded in the latest science and engineering practices and aim to promote the safety, efficiency, resilience, and sustainability of products and systems used globally. NEMA Standards cover a wide range of categories, including building infrastructure, industrial products, lighting systems, medical imaging, transportation systems, and utility products. By adhering to NEMA Standards, manufacturers and users can guarantee the quality and reliability of electrical products and systems, encouraging innovation and safety in the industry.

NEMA Standards are used to define the safety, performance, and compatibility of electrical and medical imaging products and systems. They serve as essential guidelines for manufacturers, guaranteeing that products meet industry requirements and regulatory standards. These standards help improve product quality, increase safety, and facilitate interoperability between different systems and components. NEMA Standards are applied across various sectors, including building infrastructure, industrial automation, lighting, medical imaging, transportation, and utilities. By following NEMA Standards, organizations can achieve greater efficiency, reliability, and sustainability in their products and operations, benefiting both manufacturers and end-users.

NEMA Standards are owned and maintained by the National Electrical Manufacturers Association (NEMA). Representing 370,000 American manufacturing workers across all 50 states, NEMA is the leading voice of the electroindustry. They operate from their headquarters in the United States, providing advocacy and policy expertise at every level of government. NEMA actively engages with policymakers and regulators on issues such as local building codes, infrastructure funding, national energy laws, and international trade. They support their members by defining policy goals, mapping out action plans, and facilitating opportunities for legislative engagement.  

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