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Millermatic 252 230/460/575v jumper position

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  • T_Filbert
    replied
    Thanks Kevin. I would much rather order the right part but couldn’t find it with google search. Having the part number pulled it right up.

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  • Miller Kevin
    replied
    The best way would be to get another link for the board (038618) but if you are going to use wire then I would suggest going with at least a #10 awg with the appropriate ring lugs.

    Kevin

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  • Aeronca41
    replied
    The book says it draws 46 amps at 230 volts at rated output, so 14 ga is pretty light. However, unless you're running it full-bore all the time, I would think #10 would be fine. Don't let the "30 amp max" for #10 in the tables in Section 310 of the NEC scare you--that's for insulated conductors, in a cable or raceway; with a bare jumper open to the air, it will not get nearly as hot (and therefore increase in resistance with high current) as an insulated conductor in a cable. If you want to go the extra mile, use #8, but you're going to have to buy some terminals for the ends--don't try wrapping #8 around a screw. So, if you go that way, you may as well just buy a jumper as Ryan suggests.

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  • MasterKwan
    replied
    Originally posted by T_Filbert View Post
    I know this is an old thread...

    How much current will actually flow through the links? Is it AC or DC? Are we talking 14ga stranded wire or 14ga solid wire?
    The manual should list max current at 230 volts. This is on the primary side of the transformer so I'd size the wire to the rated input current. To me 14ga feels a bit small but I haven't looked at the manual. I'm thinking it's at least 30 amps.

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  • aametalmaster
    replied
    Originally posted by ryanjones2150 View Post

    But on the wire, I presume you’d affix the proper size terminal to the ends of the wires before you install your makeshift jumper on the screw terminals, therefore, shouldn’t matter much.

    Hope that helps.
    Or just wrap it around the post. I have seen that in the last 40 some years...Bob

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  • ryanjones2150
    replied
    If you’re worried about using wire to make a jumper, then go to an industrial electric parts house and get a jumper, they are quite common.

    But on the wire, I presume you’d affix the proper size terminal to the ends of the wires before you install your makeshift jumper on the screw terminals, therefore, shouldn’t matter much.

    Hope that helps.

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  • T_Filbert
    replied
    I know this is an old thread...

    i just picked up a slightly used 252 that was set to run on 480, and I need to adjust it to run on 220. But it only has one jumper link.

    I see the comment about using 14ga wire...

    How much current will actually flow through the links? Is it AC or DC? Are we talking 14ga stranded wire or 14ga solid wire?

    thanks.

    Leave a comment:


  • cruizer
    replied
    Its likely that both jumpers are stacked on the 575, however if the previous owner trashed the other one, then merely use a piece of 14 gage wire and make your own

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  • Miller Kevin
    replied
    blavanway,

    You will need 2 links for 230 volt power, there should be 2 jumper links stacked up on the 575 volt posts.

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  • blavanway
    started a topic Millermatic 252 230/460/575v jumper position

    Millermatic 252 230/460/575v jumper position

    I bought a new 252 with multiple voltage input options. Looks like it came with only one jumper link set at 575v. Do I need two jumper links to get the machine to run on 230v? I would have thought the machine would come with two if that is what is needed for one of the selections. Anyone set one of these up for 230v? Would appreciate a bit of help.
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