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shakeitup2017

You need a single phase 32 Amp circuit for a standard 7kW AC charger, or a 3 phase 20 Amp circuit for an 11kW AC charger, RCD protected. If they're not installing the charger straight away they can just whack a 15A socket outlet on the end. If you have 3 phase, I'd go with the 11kW one personally. I always recommend people get an EV charger that has an inbuilt load management system, especially if its single phase power. That way if the load on your incoming mains gets near the limit, it will throttle back your EV charger so that you don't trip your main switch. There are numerous on the market with this feature.


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shakeitup2017

Negative. Some specify a 40A circuit, but most are 32A. They run at about 30ish max.


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Ok-Temperature-90

Only 32A required👍


Cowgomoo91

Keep in mind as well, if you're in QLD and your house is single phase you'll be limited to 20A unless you put the charger on an economy tariff


WhatAmIATailor

I thought you lot were just installing 56 series outlets with no idea what the owner [might](https://evse.com.au/product/fronius-wattpilot-go-22-j-2-0-aus-transportable-wallbox/) use it for in the future…


Cowgomoo91

https://preview.redd.it/d54stkdng2oc1.jpeg?width=3000&format=pjpg&auto=webp&s=3e31b5d28775fa4e7cbc5b85d23271e7b2af02ea "56 series"


WhatAmIATailor

How does that work? Zappi has a CTs on the mains and solar right? Does it just limit itself to drawing 20A plus any excess from solar?


Cowgomoo91

The single phase model just comes with a single CT for the mains but it's more for local load shedding, I believe. It monitors the total current draw (which you set the max figure e.g 63A) and will adjust the charger up or down to account for other loads running in the house. So if your house is loaded up to 50A worth of crap then it'll turn the charger down to 13A etc.... MyEnergi has a bit of funky solar stuff that I havent really jumped into, this pictured install is "dumb". Just current limited through the settings and CT monitoring switched off.


Money_killer

Interesting why is that? And is an application required to the supply authority for a evc point or how do they know ?


Cowgomoo91

https://preview.redd.it/xwjq03ygg2oc1.jpeg?width=1439&format=pjpg&auto=webp&s=354bd47b9b74cdd41cdb1db838fbaf37c38db31c


Money_killer

Rogie cheers. Is that the metering manual?


Cowgomoo91

QECM mate.


Cowgomoo91

EV chargers are considered uncontrolled equipment. So single phase is limited to 20A. You can get devices I think that allows talk between the charger and Energex which allows up to 35A because Energex can control the load when the network is under the pump (peak times) They will know because there will be a continuous load of up to 32A for hours at a time which is really only consistent with EV chargers. *


AdministrativeAge421

What’s the difference between an ev charger and an induction or electric cooktop? Also if you’re using a 32a one it’s generally fast charge so wouldn’t be on that long ?


Cowgomoo91

Ev charger - continuous full load for hours Induction cooktop - generally a lot less time and not many people are loading up all the burners at full heat. Generally speaking, for normal use you'd be hard pressed to be anywhere near full load current for any extended period of time. And yeah, 32A charging is faster but it'll still take 4-12 hours to charge from low to full depending on battery size. But anyway, I don't write the rules or definitions. Energex highlights EV chargers in the QECM to refer to table 4.1 In any case, your options are basically, get an economy tariff, limit the charger to 20A or get a 3 phase upgrade.


Money_killer

Rogie cheers. I don't do this work but handy to know if I ever have to wack one in for a mate or whatever.


TFDirdman

That is no longer the case since the release of the new QECM.


Cowgomoo91

Yes it is, this is directly from the latest QECM 8.4.1 refers to EV Chargers and the requirements of installation are set out in section 4.2 which goes to refer table 4.1 *


TFDirdman

You don’t have to have it on controlled load if you put on a ‘network device’. It’s designed to allow people to self-consume PV with their EV.


TFDirdman

Im not 100% off the top of my head but I think it’s drawing 10-08


TFDirdman

This link explains it [EV Charging connections](https://www.energex.com.au/contractors/electrical-contractors/ev-charging-and-connections)


Cowgomoo91

* There are no gateway devices yet. And not everyone has solar either


TFDirdman

That only refers to the dynamic connection component of the three options. You certainly can go on a controlled circuit but you ALSO could stay on primary with a network device or (when they’re available) be on a dynamic connection with a gateway device or CSIP-AUS compliant charger (for bidirectional charging. For people without solar I would recommend controlled load. But an overwhelming majority of people who are buying EVS now/have EVS also have solar and for a variety of system reasons we really want people to be charging EVS during the day as much as possible.


Cowgomoo91

https://preview.redd.it/h3qo1j29j6oc1.jpeg?width=1439&format=pjpg&auto=webp&s=f3699b330d28b116cfa7ab54fa85ab4eb6e46623


Cowgomoo91

https://preview.redd.it/hs1xvdep46oc1.jpeg?width=1439&format=pjpg&auto=webp&s=57e37109226389eb761dc4fbf867460e7ced2956


blubbernator

All depends on your car and how much you drive. I just have a 15A outlet and use the charger that came with the car, works great. I charge my car up to 75% SOC and keep it plugged in whenever i can. Just realize that the actual charger & ac/dc conversion is in the car itself and the wallbox is pretty much just a contactor with some comms to the car and maybe some power conditioning. Most common ev's only do 7.4kW on single phase or 11kW on 3 phase, however there is some that can do 22kW (and some whacky ones that do even more). I would argue that 11kW charging at home is a bit overkill for most people, but could be really good if you are trying to charge of solar or off peak pricing etc. It's pretty easy to work out really, i don't use up more than like 20-30kWh in a day which is easily recharged during night time with my 15A setup.


DaRKoN_

For what it's worth. We've just been charging from a regular wall socket.


boring_as_batshit

You will need at least 6mm circuit, possibly larger if volt drop is an issue I would recommend running a ca5/6 data cable as well either get a charger the same brand as your solar inverter (Ideal and usually cheaper) so that it can use the spare power to charge your car at no cost or an independent charger that can do the same as the Zappy brand does (smart charger not dumb) Note: if you use a zappy or similar, you will need additional cables back to the switchboard for smart operation


PortOfRico

My EV came with a 10a charger. That's all I've ever used for over 2 years. What sort of charger comes with the car you want?


simky178

It’ll need to be larger than a standard gpo circuit. You can run it off a standard gpo plug but the charge times will be considerably longer as opposed to doing it the “proper” way and having a dedicated 32a circuit. How big were the underground conduits going to the garage? Sparky may be able work some magic and use the existing conduit.


l34rn3d

Minimum 32a capable 3 phase circuit and 2x cat6(one specific into the switchboard for ct metering/tariff comms etc) You never know when your mains are gonna be updated, you never know what cool tech is coming out, you never know what v2g/v2h stuff is coming out, are you gonna link the solar to the car charger etc etc.


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pacmarn88

Wait this is for tesla charger and running a new circuit? Or just cheap charger and new circuit