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2. NEMA connector - Wikipedia

   en.wikipedia.org/wiki/NEMA_connector

   The NEMA 6-20R or 6-30R found in many hotel and motel rooms is typically supplied with either split-phase or two phases of three-phase 208 V. The higher-current receptacles are rare, with twist-locking plugs such as L6-30 and direct wiring being more common.

3. NEMA enclosure types - Wikipedia

   en.wikipedia.org/wiki/NEMA_enclosure_types

   Below is a list of NEMA enclosure types; these types are further defined in NEMA 250- Enclosures for Electrical Equipment. Each type specifies characteristics of an enclosure, but not, for example, a specific enclosure size. Note that higher numbers do not include the lower-numbered tests. For example, types 3, 4 and 6 are intended for outdoor ...

4. IEC 60320 - Wikipedia

   en.wikipedia.org/wiki/IEC_60320

   A variety of different kinds of IEC 60320 plugs and sockets. IEC 60320 Appliance couplers for household and similar general purposes [1] is a set of standards from the International Electrotechnical Commission (IEC) specifying non-locking connectors for connecting power supply cords to electrical appliances of voltage not exceeding 250 V (a.c.) and rated current not exceeding 16 A. [1 ...

5. History of AC power plugs and sockets - Wikipedia

   en.wikipedia.org/wiki/History_of_AC_power_plugs...

   IEC 60906-2 is based on the NEMA 5-15 and NEMA 5-20 plug and socket systems and was originally published in 1992. The object of this part of IEC 60906 is to provide a standard for a safe, compact and practical IEC 125 V system of plugs and socket-outlets that could be accepted by many countries as their national standard, now or in the near future.

6. Talk:NEMA connector - Wikipedia

   en.wikipedia.org/wiki/Talk:NEMA_connector

   The TT-30 is listed on page 145 of the ANSI/NEMA WD 6-2016 document (PDF page 153, available from archive.org ). It's listed in a table with heading "NEMA CONFIGURATIONS FOR SPECIFIC PURPOSE PLUGS AND RECEPTACLES", so as of 2016 both ANSI and NEMA seem to agree it is a NEMA TT-30.

7. National Electrical Manufacturers Association - Wikipedia

   en.wikipedia.org/wiki/National_Electrical...

   www.nema.org. The National Electrical Manufacturers Association (NEMA) [5] is the largest trade association of electrical equipment manufacturers in the United States. [6] Founded in 1926, it advocates for the industry and publishes standards for electrical products. Notably, the form of US household electrical outlets and plugs is specified by ...