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NEMA Power Cords

A reliable source for NEMA Power Cords information and a resource for accessing leading NEMA Power Cords and suppliers.

NEMA is an American-based organization formed in 1926 which sets the standards for electrical components and systems to adhere to and maintain. Read More…

NEMA Power Cords NEMA power cords, or National Electrical Manufacturers Association power cords, plugs and connectors are the standard electrical plugs used in North America, especially in the United States and throughout much of Canada.
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Leading Manufacturers

Livermore, CA  |  800-669-8090

Our customers find we have the highest standards when it comes to quality, and delivery. Quail Electronics is a worldwide power cord supplier, offering power cords and various other products.

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Quail Electronics, Inc. $$$

Joliet, IL  |  800-683-7228

United Universal Industries is a leading supplier and manufacturer of various power cords, wiring harnesses and special molded products for a wide range of industries and markets.

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United Universal Industries, Inc. $$$

Lancaster, PA  |  800-818-4916

Our plug adapters are guaranteed to bring you a lifetime of value. Our staff is committed to bringing you only the most reliable products that are available. We will find solutions for your cord needs regardless of how difficult the job may be.

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Kord King $$$

Fairfield, NJ  |  973-227-2118

Since their founding in 1981 in the US, International Cord Sets, Inc. has been manufacturing and supplying international cord sets, power cords, extension cords and harmonized cables, as well as plugs and connectors for global international use. For more than 35 years we have supplied thousands of OEM customers and distributors with our products and gained an outstanding reputation for our excellent quality, low prices and unsurpassed delivery service.

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International Cord Sets, Inc. (ICS) $$$
placeholder image Quail Electronics, Inc. United Universal Industries, Inc. Kord King International Cord Sets, Inc. (ICS)

Almost all of the electrical plugs and electrical receptacles used and sold in the US abide by the manufacturing and material quality standards set by NEMA. An important result of this is the increased consistency and expectations between electrical component manufacturers and consumers.

The two most common NEMA standard connectors are the 1-15P and the 5-15; these are plugs with a body typically made of molded rubber and prongs made from steel or brass with a zinc, tin, or nickel coating. The 5-15 is used typically for general electrical devices and light-weight power loads. These are found broadly in homes, commercial, and office applications.

Other NEMA connectors carry different variations on these two common plugs, with more or differently placed prongs and increasing voltage capacities. The twist-locking L series and most other connector types are used for industrial purposes, and the types of connectors coincide with various types of use and voltage. For example, some types of locking connectors are used in boats, where there is movement and it is important that power connection not be lost or exposed where water damage could cause a short. The twist-lock cannot be pulled out of its outlet unless it is twisted open.

Devices approved by NEMA are typically engineered to be one wire or two wire devices depending on whether or not a device is polarized or grounded.

Different considerations to keep in mind when purchasing electrical components include the intended use of the power supply cord, plug or connectors, the intended energy load and transfer that will be required and the device for which it is needed.

As NEMA components are the standard for the US, other power cords and connectors will be required if there is to be any travel or exposure to an international power source. Plug adapters and international power cords are widely available, but are not always required to meet NEMA standards and therefore it will still be important to consider individual manufacturing and material quality.

Increased safety features and requirements are another benefit of having NEMA manufactured products available, and this is an important element missing from appliances that do not adhere to NEMA standards. Safety features on many NEMA parts include tamper resistant receptacles to reduce electrical shock, and grounding capabilities, especially in plugs which are intended for use in potentially wet areas such as out of doors, kitchens or basements in which a grounding capability will cut off the flow of electricity.

NEMA Power Cords Informational Video