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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 between the switches. When the load is controlled from only two points, single pole, double throw (SPDT) switches are used.
Two light switches in one box. The switch on the right is a dimmer switch. The switch box is covered by a decorative plate. The first light switch employing "quick-break technology" was invented by John Henry Holmes in 1884 in the Shieldfield district of Newcastle upon Tyne. [1]
One-way: Two-way: A simple on-off switch: The two terminals are either connected together or disconnected from each other. An example is a light switch. SPST-NO. Form A [4] Single pole, single throw, normally open A simple on-off switch. The two terminals are normally disconnected (open) and are closed when the switch is activated.
Everywhere else the switch and the plate are one in the same. In the UK a circuit where the light is controlled by two switches is called a two-way switch. The description suggests this would be called a three-way switch in USA? --Ziltro 17:10, 17 November 2005 (UTC)
Dimmer light switch with RF-based remote control [1] A wireless light switch is a light switch that commands a light or home appliance to turn itself off or on, instead of interrupting the power line going to the light fixture. There are different ways to communicate between the switch and the fixture: [2]
A $2.8 Billion Home Goods Empire and $200 Million Net Worth. The Scott Brothers have a lot at stake. They have a $2.8 billion home goods brand empire but, as TV hosts, they also have the added ...
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