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Relay for Ceramic heater control

Discussion in 'General Electronics Discussion' started by HomeBrewJeff, Jan 3, 2010.

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  1. HomeBrewJeff


    Jan 3, 2010
    Question regarding the appropriate relay used to control a ceramic heat emitter (CHE) commonly used to heat enclosures for lizards, snakes, etc.

    The relay I'm looking at is rated at 3A @ 120VAC and the coil will be controlled using an Arduino/Sanguino.

    The CHE will be either a 100watt or 150watt variety:

    Any major concerns with this relay? I can go with a beefier SSR if I have to, but i have a few of the above laying around and would like to put them to use. :)

    If the above is OK, would there be able concerns with noise/EMF in this setup?

    Thanks! :D
  2. Resqueline


    Jul 31, 2009
    Should be ok as long as you are able to drive it with the 12V 17mA it requires. (That's very sensitive btw.) Remember the usual diode across the coil. Shouldn't be anything else in particular to pay attention to.
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