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HPWC and NEMA 14-50 Outlet Question

Discussion in 'Model S' started by theslimshadyist, Aug 8, 2016.

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  1. theslimshadyist

    theslimshadyist NashVegas!

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    Hey guys,

    I want to install a HPWC and a 14-50 for dual use so I wanted to ask what I would need installed. Ideally, I would want to use the HPWC to power either a single or dual charger and I would also like a 14-50 outlet that is hot as well. What would I need to have installed to power both in terms of amps and can one breaker handle both or do I need separated breakers with different amperages?
     
  2. AndreSF

    AndreSF Member

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    IMO Two separate breakers are needed: 100Amp - wall connector, 50Amp - NEMA 14-50
     
  3. TexasEV

    TexasEV Well-Known Member

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    Separate, dedicated circuits. The 14-50 goes on a 50A circuit and you will draw 40A. The HPWC can go on whatever circuit you want, depending on what you want the output to be. For example a 60A circuit will give output of 48A (the new standard charger) and a 90A circuit will give output if 72A ( the optional charger).

    This may be helpful:
    Home charging installation
     
  4. theslimshadyist

    theslimshadyist NashVegas!

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    I was thinking along the same lines. 100A for the HPWC and 50A for the 14-50, coupled with the appropriate rated wiring. Thanks again for the confirmation.
     
  5. AndreSF

    AndreSF Member

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    Looks like you can use 90Amp for wall connector, as @TexasEV stated
     
  6. theslimshadyist

    theslimshadyist NashVegas!

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    Got it and thanks!
     
  7. ABCCBA

    ABCCBA Member

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    50A circuit for the 14-50 and I installed a 80A circuit for the HPWC. If you are looking to daisy chain two HPWC in the future, then make it a 100A circuit for the HPWC. 2016-07-01 08.47.37.jpg
     
    • Informative x 1
  8. theslimshadyist

    theslimshadyist NashVegas!

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    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    This.right.here. Thanks for sharing!
     
  9. Galve2000

    Galve2000 Member

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    What kind of J1772 adapter is that? Open EVSE? I see the NEMA 14-50 below the breaker panel, but what does it plug into at the outlet?

    can that adapter handle a full 40 amps or more?
     
  10. GSP

    GSP Member

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    Interesting setup. That looks like an Aerovironment Turbocord plugged into an NEMA 6-20 outlet.

    Is the 6-20 outlet plugged into a 14-50 outlet with a flexible cord? If so, that allows unplugging it and using the 14-50 outlet with a Tesla UMC.

    GSP
     
    • Like x 1
  11. ABCCBA

    ABCCBA Member

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    GSP is correct. I made the 6-20 setup myself. It allows me to use the Turbo cord that came with the wife's Volvo, but I can unplug from the 14-50 if I need to use the 14-50. Plus, since we have Model 3s on reservation, the 14-50 can be used for one of them.
     

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