Connect with us

Non contact voltage operated switch

Discussion in 'Electronic Basics' started by tone, Jan 10, 2007.

Scroll to continue with content
  1. tone

    tone Guest

    Can anybody point me towards a circuit diagram/plan.

    I am looking for a design where I can operate a relay by sensing mains
    (240v ac) power being switched on in a cable. No metalic contact is to
    be made with the mains cable (ie cut into it). I can wrap a wire round
    or along it.

  2. Rich Grise

    Rich Grise Guest

    Try googling for "current transformer" or "hall effect device".

    Good Luck!
  3. ehsjr

    ehsjr Guest

    Hack a cheap voltage sensor to operate a relay:

    Or did you want to learn how it's done?

  4. Phil Allison

    Phil Allison Guest

    "Rich Grise"

    ** Ignore this utter fool.

    ........ Phil
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day