3 phase or single phase WC supply better?

[Tension]

I've already got the old 3ph plug to Gen1 UMC connection from when I had an old model S; sounds like I'll need to convince someone to swap their Gen1 UMC with my Gen2 UMC... I'm really not seeing any advantage of the Gen2's as yet.

 

[Brissienew]

Finally got my HPWC installed. 3 phase charging, at 77/hr, great!!! M3 SR+

 

[baillies]

I've already got the old 3ph plug to Gen1 UMC connection from when I had an old model S; sounds like I'll need to convince someone to swap their Gen1 UMC with my Gen2 UMC... I'm really not seeing any advantage of the Gen2's as yet.

the advantage is safety, hopefully Tesla release a gen 2 3 phase MC either soon or at the latest with the Cybertruck/Semi.

Non-technical Executive Summary

• All Teslas now come with an improved charging cord named the Gen 2 Mobile Connector.
• For safety reasons, the maximum current for the Gen 2 MC was reduced from 40 amps to 32 amps.
• To further enhance safety, the Gen 2 outlet adapters can sense when an outlet overheats and reduce the charging current to safer levels.
• Avoid the use of any third party adapter that requires plugging into a Tesla adapter rather than directly to the Mobile Connector brick.

SOURCE: For Tesla End-To-End Charging, There's Supercharging & Destination Charging. For Everything Else, There's The Mobile Connector — Part II | CleanTechnica

 

[Kiwiadventure]

I have 2 phases running into home so I used my spare phase for Tesla's charger. 2.7cents per k it costs to run my M3 which makes it very cheap to run. It cost $244 including GST to hock up our Tesla charger as its only 500mm from the back of main switch board.
I wouldn't worry about 3 phase I would just use one of the single phases just for your Tesla charger. If the phase has its own meter you'll know what the cost is to charge your Tesla monthly.

 

[blaqmamba]

Finally got my HPWC installed. 3 phase charging, at 77/hr, great!!! M3 SR+

Hey did you do 16 amps per phase and do you have an isolation switch on wall next to charger? My new house is under construction and wondering how I'm going to position charger on wall and where to put switch etc. Care to post some photos?

 

[Brissienew]

Hey did you do 16 amps per phase and do you have an isolation switch on wall next to charger?

I had a socket and plug for ease of removal, and a circuit breaker added. As others had said, it’s 16A per phase.

 

[Tension]

Does anyone know where to buy a Gen1 UMC?

 

[raynewman]

Does anyone know where to buy a Gen1 UMC?

US $566.44 32% OFF|Brand New OEM 1058220 00 E 1030035 02 B UMC Charger Charging Cable Harness and Adapter for Tesla Model X-in Cables, Adapters & Sockets from Automobiles & Motorcycles on AliExpress

 

[Nickdp]

Does anyone know where to buy a Gen1 UMC?

US $566.44 32% OFF|Brand New OEM 1058220 00 E 1030035 02 B UMC Charger Charging Cable Harness and Adapter for Tesla Model X-in Cables, Adapters & Sockets from Automobiles & Motorcycles on AliExpress

using AliExpress as linked to by raynewman, I get AUD819.64+45.70 shipping to Oz, total = 865.34

If you don't have the Gen1 UMC Euro-5pin-connector


then add AUD371.14, total now comes to AUD1236.48.

in which case you'd be better off to consider a non-Tesla Gen1 UMC replacement, $945, don't forget 10% discount for TOCA members with a voucher code.

 

[blaqmamba]

I had a socket and plug for ease of removal, and a circuit breaker added. As others had said, it’s 16A per phase.

Thanks. All looks good. Is that your switchboard right beside the charger?

Im not sure whether to have a socket or not - might look a bit neater without the 3 phase socket but I guess if you ever want to change/upgrade/move the charger its much easier with socket.

 

[Brissienew]

Is that your switchboard right beside the charger?

Yep, so it was an easy install.

might look a bit neater without the 3 phase socket

It would be neater, and cheaper.

 

[Tension]

using AliExpress as linked to by raynewman, I get AUD819.64+45.70 shipping to Oz, total = 865.34

If you don't have the Gen1 UMC Euro-5pin-connector
View attachment 495794

then add AUD371.14, total now comes to AUD1236.48.

in which case you'd be better off to consider a non-Tesla Gen1 UMC replacement, $945, don't forget 10% discount for TOCA members with a voucher code.

I do have that Gen1 UMC Euro-5pin-connector, but I'm still considering the charger you've linked. My only question is, can that Gen1 UMC replacement do 32A single phase? (I realise the OEM one can't, but I'm curious about the 3rd party one given that they include a 32A tail in the bundle).

 

[Nickdp]

My only question is, can that Gen1 UMC replacement do 32A single phase?

Yes.
I have that 22kW EVSE and can confirm it will take up to 32A on all three phases.
At a single phase 32A outlet you would get 7.2kW into your Model 3.

 

[raynewman]

Yes.
I have that 22kW EVSE and can confirm it will take up to 32A on all three phases.
At a single phase 32A outlet you would get 7.2kW into your Model 3.

and if you want to roll your own; the following is useful.

 

[8at8]

Hi all. Hoping to get some ideas here when it comes to buying Type 2 to Type 2 cable. For the purpose of road trips on my M3 and charging in public places, is it better / worth it to get:

16A / 1 Phase
16A / 3 Phase
32A / 1 Phase
32A / 3 Phase

Thank you.

 

[Shock-On-T]

You're better off with the 32A/3 phase cable.
That will let your car do 16A/3 or 32A/1 charging.

 

[PC__LoadLetter]

Hi all. Hoping to get some ideas here when it comes to buying Type 2 to Type 2 cable. For the purpose of road trips on my M3 and charging in public places, is it better / worth it to get:

16A / 1 Phase
16A / 3 Phase
32A / 1 Phase
32A / 3 Phase

Thank you.

Get whatever is the maximum your car is capable of. Usually it's only an extra $20.

A Model 3 can handle three-phase 16a and single phase 32a, so buy the three-phase 32a cable.

 

[8at8]

Got it. Thank you.

 

[Nickdp]

Get whatever is the maximum your car is capable of. Usually it's only an extra $20.

Using the Amperage pull-down here it's "only" $15 more ($240/$255).

General consensus is to get the 32A cable.
It is heavier and a bit 'stiffer' to roll and unroll - another first world problem .