The Tesla Wall Connectors sold in markets that use the Type-2 connector are capable of three phase since that vehicle connector also supports 3-phase. This is not applicable in North America since our Tesla vehicles use the proprietary Tesla connector that only supports single phase (including split-phase).
Thank you, so sad. My business has 3 phase. And our step down we allocated for 120v already. Would have been nice to get a 3 phase charger. But I notice no other brand has a 3 phase charger either.
Why would that have been nice? The cars built in North America don't have their onboard charger configured to even accept 3 phase electricity. And the charge ports on the cars in North America use the Tesla proprietary connector, which only has two pins for the voltage, so that can't accept 3 phase electricity either. So you still wouldn't have been able to use it even if the wall connector were installed that way.
North American cars can't accept 3 phase power. You just take two of the 3 phases and use that. The most common light industrial 3 phase in North America is 120Y208V. That is 120V Line to Neutral and 208V Line to Line. You just take two of the hot lines and send that 208V to a Wall Connector or NEMA outlet and use that. If you have 277Y480V service, you can also take a Line to Neutral 277V line and run it through a small inexpensive transformer to drop the voltage to 240V or 250V for good vehicle compatibility.
This is an example of a buck/boost transformer that will take 277V to ~245V. It's about $300 shipped and it's good for a 50A load.
I'm looking at doing the same thing but according to my calculations the only thing I could find was a couple from Larson:This is an example of a buck/boost transformer that will take 277V to ~245V. It's about $300 shipped and it's good for a 50A load.
www.larsonelectronics.com
The one you linked is not optimal because the voltage ratio drops the voltage more than necessary. It's also much more expensive.I'm looking at doing the same thing but according to my calculations the only thing I could find was a couple from Larson:
37A for $863.06
or 75A for $1,400Larson Electronics - 1 Phase Buck & Boost Step-Down Transformer - 277V Primary - 230V Secondary at 37.47 Amps - 50/60Hz
1 Phase Buck & Boost Step-Down Transformer - 277V Primary - 230V Secondary at 37.47 Amps - 50/60Hz
Does this look correct? The link you sent was only good for 6A
Thanks for double checking it. I was looking at their spec sheet and it said "Kva: 1.5 but sure enough the spread sheet does say 12.7kVA
270-280V works fine with a wall charger gen2. M3p charger maxes at 13kw. See how the max current is not reaching 48AI'm looking at doing the same thing but according to my calculations the only thing I could find was a couple from Larson:
37A for $863.06
or 75A for $1,400Larson Electronics - 1 Phase Buck & Boost Step-Down Transformer - 277V Primary - 230V Secondary at 37.47 Amps - 50/60Hz
1 Phase Buck & Boost Step-Down Transformer - 277V Primary - 230V Secondary at 37.47 Amps - 50/60Hz
Does this look correct? The link you sent was only good for 6A
It definitely doesn't have a 22 kW charger. That hasn't been available since the early Model S since early 2016.
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that was my understanding as well. What is the purpose of having 22kw wall connector if there is no tesla with a higher than 11kw charger? Maybe other brand vehicles? Cybertruck?
That’s because I used one leg from a 277/480v 3 phase. You can find this in industrial environment only. AFAIK
Well in theory I could use a step-up transformer. I'd need to take the power from a 80A breaker on my panel and use bigger wiring on the 240V portion though...
The purpose of the 22 kW wall connector was that the early Tesla vehicles DID come with a 22 kW onboard charger (optional) that could use all of that fully. That's what I just explained:
The first several years of the Model S from 2012 through early 2016 had a system of single or dual onboard chargers. They were two separate pieces, and they were each 11 kW, so if you had two of them installed, they did have 22 kW power capability, and so that's what the older wall connectors could supply. It was all wonderful.
