Single phase or 3 Phase cable confusion
Single phase or 3 Phase cable confusion
Author
Discussion

steing

Original Poster:

25 posts

182 months

Thursday 3rd September 2020
quotequote all
About to order a Porsche Taycan and can’t seem to get a clear answer on charging cables.

Understand for the 50kw and above chargers they are all tethered no need for a cable.

For Home Charging - 7.2kw a 32 Amp Single Phase cable is all that’s needed.
For 11kw and 22kw Public Chargers – am I correct in stating you need a 3Phase Cable in order to charge at those rates? If that is the case can you use a 3Phase cable also at home in a standard 7.2kw Charger (EO Mini – but no 3 phase electricity at home) i.e. is the cable backwards compatible to 7.2 kw.

Therefore, other than cost of a 3Phase, is there any downside in ordering one as your main cable for home and in the car for Public Charging on the move. Where I park at work there are 22kw chargers.

And last question – any particular recommendations for a 10m cable to purchase?

bimjim

263 posts

185 months

Thursday 3rd September 2020
quotequote all
A 3 phase cable will work at home on your single phase 32a connection.

In your circumstances it sounds like it would make sense to get a 3 phase cable.

ZesPak

26,002 posts

218 months

Monday 14th September 2020
quotequote all
Basically, the better the cable the better (of course).

Tesla delivers a 32A 3 phase Mennenkes cable with the car, which are a bit of the "gold standard" here. They are typically very blue.

The Tesla one is the Mennenkes with product code 36213, it's 4m and will set you back <250 GBP ( amazon).
They also have a 7m one that will be about 100 GBP more.
A slightly confusing thing is that over 3 phases, it can't make full use of the 32A on the three phases, but you'll want the 32A cable for when you only got a 1 phase charger. Basically your car is limited to convert a certain amount of AC power. Most modern EV's take 3 phase (Taycan 11kW, Tesla 16.5kW, E-tron 11kW).

Your point of "higher being tethered" is also true. Note that some lower powered ones are tethered as well (convenient for home charging imho).

The higher capacity is delivered to your car in DC already, so your car is not limited to the internal convertor.
As you've got a Taycan you're probably aware that one of your side charging ports allows DC charging and the other one won't. Just a reminder if you find yourself in a situation where you need to use higher powered charger.

theboss

7,360 posts

241 months

Wednesday 16th September 2020
quotequote all
Is 22kw charging standard on the Taycan now, instead of 11kw? It's not clear from the configurator - it appears as an option still for the 4S but not the Turbo. I thought they had made it standard for MY2021.