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  1. What is the origin of on and off power switch symbol?

    Oct 10, 2012 · Once a device's switch is turned on the electrical current flows, more or less, from the power source to the device in a straight line; which explains the "1" symbol.

  2. What do the dashed lines between the contacts mean? What does …

    Nov 19, 2024 · 3 Here I've shown 2 selector switch symbols almost having same symbol (but different purpose, I know that.) I have 2 questions. What do ON (dashed lines)and OFF (solid …

  3. What are strange characters and dashed lines above switches?

    Sep 8, 2022 · In the picture below, what are the weird symbols over the switches? I've circled or pointed to them with red.

  4. schematics - What kind of a pushbutton is this? - Electrical ...

    Oct 6, 2020 · SS1 a selector switch symbol in PLC design logic. and LS1 is a limit switch, and PS1 is the pressure sensor switch.

  5. What is this high power switch symbol? - Electrical Engineering …

    Its isolator is a large three phase supply mechanical switch, a photo of part of which is below. There are two electrical symbols on the box for a switch -- one with a square on it and a 160 A …

  6. control system - What does this switch symbol with a triangle on …

    Dec 26, 2020 · Per IEEE STD 315 section 4.2.1.2 a fixed contact with momentary contact (automatic return) is represented using a triangle. The symbol you have appears to have a …

  7. switches - Can you clarify what an 1NO1NC switch is? - Electrical ...

    The switch you describe with 3 terminals would normally be called SPDT or single pole, double throw. Generally normally open contacts are used in most electronics especially for …

  8. ISO/IEC Power/Ground Symbol in schematics?

    Apr 19, 2022 · Yet again, we are debating with colleagues to choose the correct power symbols in our schematics. Some argue that using the horizontal 4-lines symbol for GND is a …

  9. Push (Button) Switch Symbol - Electrical Engineering Stack Exchange

    May 11, 2014 · I want to know what the symbol for a button switch is. It's the kind that if you push it, the circuit is complete, and if you release it, the circuit is broken. Also, it has four prongs, …

  10. Difference between disconnector, circuit breaker and load break …

    Oct 13, 2015 · There are various types of devices available for carrying out the switching and tasks. I have a question about the differences between disconnectors, circuit breakers and …