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    Heatbed with 411Watt on Duet Wifi

    Duet Hardware and wiring
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    • SW
      SW last edited by

      Hello Folks,

      my Heatbet takes 24 Volt and an resistance (measured) like 17,14 Ohm, this is like 411Watt - 17,14 Amperes. The Fuse on Duet WiFi is like 15 Amperes (Blue). Can I connect direktly to the Duet or did I need an mosfet between the Bed ant the Duet? At this time I connect the Heatbed with an Mosfet, because I don't want to damage my Duet - it works very fine ... 🙂

      Stephen6309 1 Reply Last reply Reply Quote 0
      • Veti
        Veti last edited by

        see
        http://blog.think3dprint3d.com/2017/04/duetwifi-updated-thermal-testing.html

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        • Stephen6309
          Stephen6309 @SW last edited by

          @sw Leave it on the Mosfet, don't fix something that's working.

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          • dc42
            dc42 administrators last edited by

            The fuse holder is rated at 15A, that's why we supply a 15A fuse, although I suspect that the fuse holder could take more current when it isn't in a hot environment. If you run your bed heater at 17A for long enough, the 15A fuse may eventually blow. You could accept that, or replace it with a 20A fuse.

            Duet WiFi hardware designer and firmware engineer
            Please do not ask me for Duet support via PM or email, use the forum
            http://www.escher3d.com, https://miscsolutions.wordpress.com

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            • SW
              SW last edited by

              Ok, I see it's the better way to lave it on the Mosfat 😉
              Thank you very much!

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