Hello everybody,
I send this mail because as a lot of people in France (and Europe), I have concerns about the actual 13A per phase limitation on the Model S charger(s).
In three phase mode, this 13A limitation is not too restrictive, because with single charger charge is 3 x 230V x 13A = 9kW, and with dual charger it's 2 x 3 x 230V x 13A = 18kW. It's not too far of the maximal charger power of 11kW/22kW.
But in single phase mode (at home for 95% of Model S owner), this 13A limitation is a very big problem, because with single charger charge is 1 x 230V x 13A = 3kW, and with dual charger it's 2 x 1 x 230V x 13A = 6kW. That's a big problem, charge time is really to long !
Normally in single phase mode, each charger should accept 45A ! We really hope it will be the case.
Because even if the 13A limitation is removed and current comes back to 16A, it will not be enough in single phase mode, because max charge power will be 3.6kW with single charger and 7kW with dual charger !
Last week my electrician installed at home a single phase 63A high power wallbox, and actually my model S (which arrives tuesday) will never charge above 26A (I have dual charger option), that's a big concern !! And I am "lucky", a friend of mine has a Model S with single charger, he also installed a 63A single phase wallbox because he wanted to charge at 45A rate, and its actual charge rate is 13A (3kW)....
So I have some importants questions :
1) Is there somewhere an official communication from Tesla about this problem, and how/when it will be solved ?
2) I seen somewhere on the TMS forum that the 13A per phase limitation suppression will need the high voltage junction box replacement, is it true ?
3) With junction box replaced, and limitation removed, is each charger will accept 45A on single phase installation, thus 230V x 45A = 10kW in single charger and 230V x 90A = 20kW in dual charger mode ?
4) Very important : actually, on single phase installation, is it possible to dispatch the L1 phase on L2 pin and L3 pin of the Type 2 connector to simulate a 3 phase installation ? This way the charger can receive 3 time the single phase, and maybe reach 3 x 230V x 13A = 9kW charge (18kW for dual charger) ?
5) In Europe the HPWC is available soon. Is the HPWC will be able to charge a model S with dual charger at 20kW rate in single phase installation ? Thus 230V/90A (45A per charger) ? If yes, is the Type 2 plug will be standard (Neutral 90A + L1 phase 90A + ground used), or is the Type 2 plug will be special ( Neutral 90A + single phase injected on L1/L2/L3 thus 30A per phase + ground) ?
Best regards
Cyril HAENEL