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Incidentally, a NEMA 5‐20, NEMA 6-15, or NEMA 6‐20 plug with a missing earth pin would fit this socket. This receptacle type has been unavailable at retail since the 1960s but still available from the manufacturer Leviton (model 5000-I) for replacement only, not for new installations and is not "UL listed". [23] Harvey Hubbell had patented ...
NEMA 5-15P plug and NEMA 5-15R receptacle (different scales, blade spacing is 0.5 inches (12.7 mm) for both.) Each receptacle also accepts an ungrounded plug, whether polarized or unpolarized. Typical 5-15R residential receptacle 5-20R T-slot receptacle mounted with the hole for the ground pin at the top. The neutral connection is the wider T ...
His best-known inventions are the U.S. electrical plug [1] and the pull-chain light socket. [2] In 1888, at the age of 31, Hubbell quit his job as a manager of a manufacturing company and founded Hubbell Incorporated in Bridgeport, Connecticut, a company which is still in business today, still headquartered near Bridgeport. Hubbell began ...
The generally used hybrid socket is also defined in TIS 166-2547, in addition to a plain three-round-pin socket, with plans to eventually replace the former and phase out support for NEMA-compatible plugs. Sockets are polarised (as in NEMA 5-15). [60] The grounded plug is similar to, but not interchangeable with, the Israeli SI32 plug.
Industrial devices may also be constructed to be dust or water-tight. NEMA wiring devices are made in current ratings from 15–60 A, and voltage ratings from 125–600 V. There are two basic configurations of NEMA plug and socket: straight-blade and locking. Numbers prefixed by L are twist-lock, others are straight blade. Locking type ...
Hubbell Incorporated was founded as a proprietorship in 1888 by Harvey Hubbell II. Born in Connecticut in 1857, he was a U.S. inventor, entrepreneur, and industrialist. Hubbell's best-known inventions are the U.S. electrical plug [3] and the pull-chain light socket. [4]
AC power plugs and sockets, devices that allow electrically operated equipment to be connected to the primary alternating current (AC) power supply in a building NEMA connector, the standard for much of the Americas and Japan for such plugs and sockets; Industrial power plug; DC connector, an electrical connector for supplying direct current ...
A passive electric power adapter, sometimes called a travel plug or travel adapter, allows using a plug from one region with a foreign socket. As other countries supply 120-volt, 60 Hz AC, using a travel adapter in a country with a different supply poses a safety hazard if the connected device does not support both input voltages.
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