Relay advice wanted

Discussion in 'Tech/Mech General' started by Bryan, Dec 9, 2009.

  1. Bryan

    Bryan Read Only Funster

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    Hi all,

    I've got a little project in mind and want to ask you for help in finding a relay for it.

    I'm looking for a 3 pole double throw (3pdt) relay that will switch when 240v is present (and reset when not) and be capable of handling the current flow for a crt tv (20"), a dvd player and a sky+ box.

    Also, one of the poles will will only have a tiny current at much lower voltage connected but I'm hoping that a 240v relay will not have any issues if one of the poles is connected to a very low power circuit.

    I've seen this but I have no idea if it is suitable or good value etc. and I'm happy to be pointed in a better direction :)

    Suggested relay

    Bryan
     
  2. SandJ

    SandJ Read Only Funster

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    Bryan,

    Being the kind helpful person that I am, i looked at you post heading and thought:thumb:
    I can help, it was not till I read your post did I realise you were not talking about a Relay Race. :Eeek:
    So sorry I am unable to help you, good luck with project. :thumb:


    :Rofl1::Rofl1::Rofl1::Rofl1::Rofl1::Rofl1:
     
  3. hilldweller

    hilldweller Funster Life Member

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    That is the suck-it-and-see one. 10A contacts can be poor at switching mill-amps. I'm guessing something like a video change over. You'll have to try and if you get interference or poor switching make that contact switch a better suited small relay, maybe a reed relay running off the 12V battery ( that's if it's in the MH ).
     
  4. Fatalhud

    Fatalhud Read Only Funster

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    To be honest Bryan, thats the one I would try.
    Don't forget you will need the base as well

    Alan h
     
  5. pollensabob

    pollensabob Funster

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    Hi Bryan,

    Try RS Components UK RS online.com They stock a huge range of electronic relays etc. I use them a lot in my business.

    Bob
     
  6. pappajohn

    pappajohn Funster Life Member

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    Min Switching Voltage AC / DC:400V ac

    not sure if this means the voltage needed to power the actual switching seloniod coil is 400v AC.

    seems to me to be for a 3 phase 415v AC system to switch a secondary 240v ac or 30v dc circuit.

    could be wrong......i dont do 415v
     
  7. Fatalhud

    Fatalhud Read Only Funster

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    The coil voltage is 240volt, it is just saying the contacts are capable of switching 415v.

    Alan H
     
  8. pappajohn

    pappajohn Funster Life Member

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    try your local "Electric Center"...used to be known as "William Wilsons"
    they'll be able to help.
     
  9. pappajohn

    pappajohn Funster Life Member

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    confusing........... Min Switching Voltage AC / DC:400V ac

    and the page said MAX 30v 10a dc :RollEyes:
     
  10. Reallyretired

    Reallyretired Funster

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    I use CPC a lot and they are pretty good and reasonably priced.:thumb:

    Are you going to tell us about the project then ? :Wink:
     
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