Cable for Level 2 charging?

Discussion in 'Prime Main Forum (2017-Current)' started by Rieuk, May 29, 2019.

  1. Rieuk

    Rieuk Member

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    Hey guys,
    So at my workplace they're very slow on the adoption of EV charging stations. However I did find several 208V outlets around the parking area (typically used for machinery and charging their forklift). My question is: is there a cable I can get to be able to charge my car using this outlet?

    Have attached a picture of the outlet in question. It's a twist-lock outlet.
     

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  2. mr88cet

    mr88cet Senior Member

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    You’ll need to get a level-2 EVSE. I’ve seen some portable ones on Amazon, but I don’t have any personal experience with them.

    A poorly-researched, quasi-arbitrary example:



    Make sure you get one with the right kind of plug...
     
    #2 mr88cet, May 29, 2019
    Last edited: May 29, 2019
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  3. bisco

    bisco cookie crumbler

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    and the voltage parameters include 208v
     
  4. mr88cet

    mr88cet Senior Member

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    (Dang, why does it keep giving me an unsupported-media URL when I try to paste in an Amazon web page URL?!)
     
  5. Tha_Ape

    Tha_Ape Active Member

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    Looks like a NEMA L15-20, you want an EVSE (or adapter?) That fits it.
     
  6. Rieuk

    Rieuk Member

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    Ah ok, thanks. Couldn't really find an EVSE with that outlet, though. On the other hand I found another outlet here (image attached). I think this one is more common, though I can't exactly identify it. Based on the rating (30A, 250V) it's either NEMA L6-30R (2 pole, 3 wire) or L11-30P (3 pole, 3 wire). Any ideas?

    Have also attached a reference sheet for NEMA outlets..
     

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    #6 Rieuk, May 29, 2019
    Last edited: May 29, 2019
  7. jerrymildred

    jerrymildred Senior Member

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    The Duosaida that @mr88cet mentioned is offered with several different connectors. I have one to fit my dryer outlet.
     
  8. Rob43

    Rob43 Senior Member

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    Build your own conversion cable for ~$25 dollars & use your OE Toyota EVSE unit for L2 charging, you'll get a full charge at work in about 2 1/2 hours.

    Using the Primes 120v Charger at 240 Volts, Cost $20 !!! | PriusChat


    Rob43
     
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  9. smyles

    smyles Active Member

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  10. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    I need to stress that 208 volt outlets in the US are three phase, no EVSE is set up for three phase electricity:

    Level 1 is 120 single phase
    Level 2 is 240 single phase
    Level 3 was supposed to be three phase but was dropped as an idea.

    If you find an electrician who can make it work, expect 15% slower charging, But I would not mess with converting my employers three phase to single phase without their knowledge!

    Electrical Service Types and Voltages – Continental Control Systems, LLC
    Charging station - Wikipedia
     
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  11. Rieuk

    Rieuk Member

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    Ooh nice. So I basically need a conversion cable from 6-30P to 5-20R, then I can use the OEM EVSE to plug-in...

    Hm okay - are you saying that what I said above is *not* possible?
     
  12. jerrymildred

    jerrymildred Senior Member

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    Possible if you know how. Pretty iffy on the electrical code. I don't have time to look it up. But it won't charge quite as quickly at 208 as at 240.
     
  13. Rob43

    Rob43 Senior Member

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    This is the first reference to a " Non Locking" NEMA 6-30P, is this what you have at your home ? Or did you omit the "L" ?


    Rob43
     
  14. a_gray_prius

    a_gray_prius Rare Non-Old-Blowhard Priuschat Member

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    I'm very confused - we've charged our Tesla at plenty of commercial EVSEs with standard J1772 plugs that are three-phase. The most common (until a couple years ago) was a 208V/30A ChargePoint. We've charged our Prime at (at least) a couple of these.
     
  15. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    a commercial charger designed to be three phase, will not use a plug, and will only send single phase to any one car.
     
  16. PT Guy

    PT Guy Senior Member

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    The receptacle in the photograph is labeled L15-20. Count the poles: four, 3 hot legs (3 phase) plus ground.

    I'd contact Brad at BSA Electronics (the Duosida guy) and ask if his $210 portable charging station will work with 208 volts. If so, he can connect an L15-20 plug across just one phase (any two hot wires) to give single phase 208. I don't think this minor 16 amp imbalance will upset the 3 phase system. Dostar Duosida 16A 3.84kW Portable Charging Station - EVSE D25-16A – BSA Electronics

    "commercial EVSEs with standard J1772 plugs that are three-phase" Huh? the J1772 connector has five pins. Two hot legs, a ground leg, a signal leg (the car's charger communicates with the EVSE's controller), and a proximity pin that tells the system whether the connector is plugged in.
     
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  17. KCWhitney

    KCWhitney Member

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    That Duosida works great and is a good value. I have been using it daily fortwo years, now.
     
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  18. jerrymildred

    jerrymildred Senior Member

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    Three phase systems supply single phase loads all the time. Our factories were all 480V 3 phase, but the lights were 277V single phase. Our radio station in Honduras was 208V 3 phase. But all our loads were single phase. On those rare occasions when the utility managed to keep it above 190-200V, even the 220V stuff worked well. We had LOTS of line conditioners since that didn't happen often. LOL! You do want to try to keep all those single phase loads evenly distributed across the system, though.
     
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  19. Rieuk

    Rieuk Member

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    Reviving since I didn't get an answer on this – is the above receptacle for a three phase or single phase? Seems like it's L6-30R which means single phase, right?
     
  20. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    L6-30 is single phase.
     
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