EV 3 phase 7kw 3 pin charger

If my understanding is correct the 3 pins is a one phase connection 1 active 1 neutral 1 earth.  The 5 pins is a 3 phase connection 3 active, 1 neutral and 1 earth.  If there are only 3 pins, the cable is a 1 phase cable. 5 pins a 3 phase cable.  1 phase is max 7kw and 3 phase is max 22kw.  Depending on the connection a 1 phase connection can provide electricity a 10amp 16amp or 32 amp depending on the breaker, cable and charger. A 3 phase connection can provide triple i.e. up to 32amps per phase depending on the setup. The seal can only accept AC charging at 7kw so three phase is not really useful to current BYD models. A 3 pin cable is sufficient for all you charging needs as input is limited at 7kw anyway.

Are you talking about the Type 2 connector that plugs into the car? Attached is the pinout from Wikipedia. https://preview.redd.it/fa921nl3eead1.png?width=1440&format=pjpg&auto=webp&s=5043a0667d95d89e47069e494108e1585ac86197 Presumably a 1-phase charger would not have any of the pins labelled L2 and L3, whereas a 3-phase charger would. As a previous poster said a single phase AC charger can charge at a maximum rate of 7.4 kW whilst a 3-phase charger can charge up to 22 kW. There is no advantage in getting a 3-phase charger for the BYD Seal. If you already have 3-phase power at your house, it may be worth running a 32 A or 40 A 3-phase power cable to the charger location in case a future vehicle you have can charge at rates greater than 7.4 kW. The material cost difference of the 3-phase vs 1-phase cable that the electrician will run from your mainboard to the EV charger is small compared to the labour cost of running a whole new cable. If you only have single phase power at your house, I do not think the cost of upgrading to 3-phase power and putting in a 3-phase AC charger is worth it, unless you foresee yourself getting an EV that can take advantage of that in the near future.

Thank you! So I have a 3 phase 5 pin socket at the warehouse but bought a 7kw 3 phase 3 pin charger. So should be ok. As that is what it will draw. Many thanks!

Thank you for your comprehensive reply. I have a 3 phase 5 pin socket at the warehouse 32a. And prob expect it to only draw 7kw if I connect this 3 pin 3 phase plug then. Awesome!

Just to be clear, sounds like you have a single phase cable and plug. It will work with the 3 phase socket. It just will not utilise the 2nd and 3rd phases.

No you will not be ok, you need a 5-pin plug on your charger. A 3-pin plug will not fit into a 5 pin socket. You can purchase single phase 5-pin 32amp chargers which will provide a \~7kw charge to your car, or you can purchase a three phase 5-pin 32amp charger which theoretically can deliver 22kw, but will only provide the Seal the maximum 7kw due to the cars onboard circuit.

https://preview.redd.it/hj6v5wii7gad1.png?width=1080&format=pjpg&auto=webp&s=0c0a9321dbce17d3f3127df020c96088847efed6

Provided the plug has a gap where the unused pins can sit you should be fine.

I see. The orange coloured industrial 32A plug in that picture will not fit into a 3-phase socket. You could get an adapter made up with 5 pin plug at one end and 3 pin socket at the other. It would be quite easy. You can buy one. Quick search reveals this for $269. Cheapest option would be to remove the 3-pin plug and replace it with a 5-pin plug. $42 from Bunnings.

Thanks!

If you don't know consult an electrician. The replies in this thread are very poor and lack understanding.

Technically, if you change the orange plug or make your own adaptor, that should be done by a qualified electrician. If you get the wiring wrong, this could cause damage to the charge cable, car or injury to you or another user.

No. definitely wasn't going to have a go with a $60k vehicle. I have a sparky coming tomorrow. But I might as well get a new EV charger that's is 5 pin 7kw. Wish I saw the 5 pin first only $20 difference.

There is no such thing as a 3 phase 3 pin charger, all 3 phase charges have 5 pins and all single phase chargers have 3 pins

Not always though. One of the leading online retailers (INCHARGEx) sell their single phase 7kw charger with a 5pin 32A male plug. These plugs haven't got any cables connected to terminal L2 & L3. This is where you'd have the white and blue phase in a three phase application. They then offer a 5pin female to 3pin male adapters for those who only have a 3 pin single phase IP56 socket installed.