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  1. #13
    I'm not an expert on electrics but I wouldn't use the automotive fuse on mains AC. Either MCB or DIN mounted glass fuse holder designed for AC would be my choice.

    I did a lot of looking into fuses for the DC side and concluded that it was ok to use a 5A 12V automotive blade fuse at 5A 70V because the fuse would blow at a certain power which is the current squared times the fuse resistance. The voltage didn't come into it until the fuse blew and the gap created needed to be big enough to prevent an arc ( therefore still allowing current through).

    That was where I got to it anyway. I also saw Irving use one ( with a disclaimer)!

    Clive - you wrote SCR did you mean SSR as in solid state relay?
    Last edited by routercnc; 08-04-2015 at 10:28 PM.
    Building a CNC machine to make a better one since 2010 . . .
    MK1 (1st photo), MK2, MK3, MK4

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