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2. Relay - Wikipedia

   en.wikipedia.org/wiki/Relay

   A relay Electromechanical relay principle Electromechanical relay schematic showing a control coil, four pairs of normally open and one pair of normally closed contacts An automotive-style miniature relay with the dust cover taken off. A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple ...

3. Lloyd Groff Copeman - Wikipedia

   en.wikipedia.org/wiki/Lloyd_Groff_Copeman

   Lloyd Groff Copeman (December 28, 1881 – July 5, 1956) [1] was an American inventor who devised the first electric stove and the flexible rubber ice cube tray, among other products. He had nearly 700 patents to his name, and he claimed that he could walk into any store and find one of his inventions.

4. Automobile auxiliary power outlet - Wikipedia

   en.wikipedia.org/wiki/Automobile_auxiliary_power...

   For the 12 volt systems, the center contact is the positive terminal and the shell is the negative terminal. Most automobiles connect the negative terminal to the frame of the vehicle (negative ground). 12 volt auto connectors are made to comply with a standard by Underwriters Laboratories for safety. UL2089 was developed to cover the ...

5. Protective relay - Wikipedia

   en.wikipedia.org/wiki/Protective_relay

   Electromechanical protective relays operate by either magnetic attraction, or magnetic induction. [9]: 14 Unlike switching type electromechanical relays with fixed and usually ill-defined operating voltage thresholds and operating times, protective relays have well-established, selectable, and adjustable time and current (or other operating parameter) operating characteristics.

6. Samsung Electronics becomes largest shareholder of South ...

   www.aol.com/news/samsung-electronics-becomes...

   Samsung Electronics became the largest shareholder of South Korea's Rainbow Robotics, the robotics company said in a regulatory filing on Tuesday. Samsung, which had previously invested in the ...

7. Solid-state relay - Wikipedia

   en.wikipedia.org/wiki/Solid-state_relay

   A solid state relay (SSR) is an electronic switching device that switches on or off when an external voltage (AC or DC) is applied across its control terminals. They serve the same function as an electromechanical relay , but solid-state electronics contain no moving parts and have a longer operational lifetime.