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The toggle light switch was invented in 1916 by William J. Newton. [2] As a component of an electrical wiring or home wiring system, the installation of light switches is regulated by some authority concerned with safety and standards. In different countries the standard dimensions of the wall mounting hardware (boxes, plates, etc.) may differ.
A common application is in lighting, where it allows the control of lamps from multiple locations, for example in a hallway, stairwell, or large room. In contrast to a simple light switch, which is a single pole, single throw (SPST) switch, multiway switching uses switches with one or more additional contacts and two or more wires are run ...
Switches can be designed to respond to any type of mechanical stimulus: for example, vibration (the trembler switch), tilt, air pressure, fluid level (a float switch), the turning of a key , linear or rotary movement (a limit switch or microswitch), or presence of a magnetic field (the reed switch). Many switches are operated automatically by ...
New front door with a large window to let in more natural light, with a keypad deadbolt. ... The decora rocker switch is thin and can be double stuck anywhere or put next to another switch to look ...
This page was last edited on 29 June 2005, at 00:30 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
NKK SWITCHES Co., Ltd. (NKKスイッチズ株式会社, NKK Suitchizu Kabushiki-gaisha) (formerly Nihon Kaiheiki Kogyo Co., Ltd.) is a designer and manufacturer of diversified industrial operational switches. The company offers illuminated, process sealed, miniature, specialty, surface mount and LCD programmable switches.
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