switch contacts

  1. S

    Amplifier aux switch

    This amplifier is built after some good thoughts considering its previous models, they even provided an aux switch with it and non of the sell know how that works, its tpa3116d2 2.1 as you can see in the pic there is an aux switch ((aux sw) at the back of the Bluetooth antenna/aux jack ) ig...
  2. Rotary switch - draw properly

    Hi. Having an old thread from 2018 - now closed, so this is a kind of solution for that: https://www.electro-tech-online.com/threads/rotary-switch-how-to-draw-properly-in-chematic.153069/ Thing is I actually found a schematic that have setting up a function table - assuming that is the way to...
  3. Rotary switch - how to draw properly in chematic?

    Hi forum. Have an switch with 12 connections, and there is 7 possible positions. It is taken from a small substation and had being used on the analog voltmeter to switch between meassuring L1-L2, L2-L3, L3-L1, L1-N, L2-N, L3-N and 0 (no connections between any poles). It is pretty much the same...
  4. R

    Derating a switch's load rating with inductive load

    I am selecting a switch to energize a 3/4 hp AC motor. I am concerned about the prospect of contact arcing with such an inductive load. If a switch is rated at 25A @ 125 VAC, it will handle the continuous current, but might there be a reliability issue over time due to contact arcing at turn on?
Cookies are required to use this site. You must accept them to continue using the site. Learn more…