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Voltage of electric generator

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  • Voltage of electric generator

    I am in the process of buying a Kohler 6.5 kW single phase 400 amperes gasoline generator for my boat. I am buying one from the US as I am located in Thailand. The Kohler generator is 120 volts. I am not sure if my old generator was 120 volts or 230 volts. I cannot know this because it is no longer in the boat, but it was a Quicksilver 7.5 kW imported from the US. If my boat was designed for a 230 volt generator, then I would obviously run into a problem installing a 120 volt generator? I know this is a very basic issue, but as I am not knowledgeable about wiring and electricity in boats, I felt it was right to ask the question here, if anyone can give me any pointers. Thank you.

  • #2
    what does your switch gear state its rated for? did your old wiring have 4 wires (L1, L2, Neutral, Ground) or 3 wires (L1, Neutral ground)?

    also, there is no way you get 400 amps from a 6.5kw genny. 6.5kw at 120 volts, that is about 65 amps at a .8 power factor
    Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

    1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

    Past Boats
    1970 Wooster Hellion - Merc 9.8
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    • #3
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      Thailand is a 230 VAC 50Hz standard

      How did you handle the frequency issue?
      ....

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