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  2. Push switch - Wikipedia

    en.wikipedia.org/wiki/Push_switch

    A push switch (button) is a momentary or non- latching switch which causes a temporary change in the state of an electrical circuit only while the switch is physically actuated. An automatic mechanism (i.e. a spring) returns the switch to its default position immediately afterwards, restoring the initial circuit condition. There are two types: [1]

  3. Push-button - Wikipedia

    en.wikipedia.org/wiki/Push-button

    Push-button. A push-button (also spelled pushbutton) or simply button is a simple switch mechanism to control some aspect of a machine or a process. Buttons are typically made out of hard material, usually plastic or metal. [1] The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or pushed.

  4. Ladder logic - Wikipedia

    en.wikipedia.org/wiki/Ladder_logic

    Ladder logic was originally a written method to document the design and construction of relay racks as used in manufacturing and process control. [1] Each device in the relay rack would be represented by a symbol on the ladder diagram with connections between those devices shown. In addition, other items external to the relay rack such as pumps ...

  5. Switch - Wikipedia

    en.wikipedia.org/wiki/Switch

    The most common type is a "push-to-make" (or normally-open or NO) switch, which makes contact when the button is pressed and breaks when the button is released. Each key of a computer keyboard, for example, is a normally-open "push-to-make" switch. A "push-to-break" (or normally-closed or NC) switch, on the other hand, breaks contact when the ...

  6. Electrical contact - Wikipedia

    en.wikipedia.org/wiki/Electrical_contact

    An electrical contact is an electrical circuit component found in electrical switches, relays, connectors and circuit breakers. [1] Each contact is a piece of electrically conductive material, typically metal. When a pair of contacts touch, they can pass an electrical current with a certain contact resistance, dependent on surface structure ...

  7. File:SPST-Switch.svg - Wikipedia

    en.wikipedia.org/wiki/File:SPST-Switch.svg

    File:SPST-Switch.svg. Size of this PNG preview of this SVG file: 512 × 148 pixels. Other resolutions: 320 × 93 pixels | 640 × 185 pixels | 1,024 × 296 pixels | 1,280 × 370 pixels | 2,560 × 740 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.

  8. File:SPST switch symbol.svg - Wikipedia

    en.wikipedia.org/wiki/File:SPST_switch_symbol.svg

    File:SPST switch symbol.svg. Size of this PNG preview of this SVG file: 196 × 62 pixels. Other resolutions: 320 × 101 pixels | 640 × 202 pixels | 1,024 × 324 pixels | 1,280 × 405 pixels | 2,560 × 810 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.

  9. File:Push-to-make switch electronic symbol.svg - Wikipedia

    en.wikipedia.org/wiki/File:Push-to-make_switch...

    File:Push-to-make switch electronic symbol.svg. Size of this PNG preview of this SVG file: 156 × 50 pixels. Other resolutions: 320 × 103 pixels | 640 × 205 pixels | 1,024 × 328 pixels | 1,280 × 410 pixels | 2,560 × 821 pixels. Original file ‎ (SVG file, nominally 156 × 50 pixels, file size: 1 KB) This is a file from the Wikimedia Commons.