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    ToolBoard 1LC fuse rating

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    My Duet controlled machine
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    • PaulHewundefined
      PaulHew
      last edited by

      Hi,

      Looking at the documentation for the toolboard it suggests putting and inline fuse which I would like to do, but do not know how to calc the required amperage.
      50w heater, 17HS10-0704S stepper with rated current/phase 0.7a
      Using this site https://www.electricalsafetyfirst.org.uk/watts-to-amps-calculator/
      I put 51w in to take account of the stepper and heater which then calculated 2.13a

      The smallest Blade fuse based on the above is 3amps.
      Is this safe or do I need to look at another solution, please.

      Regards

      Paul

      RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
      Voron 2.4 disassembled..... Waiting for the RailCore Mini....

      1 Reply Last reply Reply Quote 0
      • fcwiltundefined
        fcwilt
        last edited by

        Hi,

        A 3 amp fuse should be fine but what voltage are you using for your calculations?

        Frederick

        Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

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        • PaulHewundefined
          PaulHew
          last edited by

          24v Meanwell PSU. Was driving a Duet2 eth and a Duex

          RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
          Voron 2.4 disassembled..... Waiting for the RailCore Mini....

          fcwiltundefined 1 Reply Last reply Reply Quote 0
          • fcwiltundefined
            fcwilt @PaulHew
            last edited by

            @PaulHew said in ToolBoard 1LC fuse rating:

            24v Meanwell PSU. Was driving a Duet2 eth and a Duex

            Well the heater alone is going to need 2.08 amps. Add the current for the stepper and you could be up to 2.64 so a 3 amp fuse seems good - if it blows try the next size up.

            Frederick

            Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

            1 Reply Last reply Reply Quote 0
            • oliofundefined
              oliof
              last edited by

              The tool distribution board uses 5A fuses.

              <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

              PaulHewundefined 1 Reply Last reply Reply Quote 1
              • PaulHewundefined
                PaulHew @oliof
                last edited by

                @oliof Morning, I was about to say, I do not have a tool distro board, but then saw the relevance of your reply!
                I have a selection anyway, but thanks for the info, good shout.
                I will start with a 3 and see what happens.

                Regards,
                Paul
                Paul

                RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
                Voron 2.4 disassembled..... Waiting for the RailCore Mini....

                1 Reply Last reply Reply Quote 1
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