I added a THIRD Tesla Charger to my Garage! Wall Connector Power Sharing is Amazing!
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- Опубліковано 2 жов 2024
- Another Gen3 wall connector goes on the FiehlSport garage. Here's my thoughts and why it's a great way to add more chargers without needing to expand your circuitry.
Does Tesla still allow you to connect the units via a communication wire?
@@NextGenEvs Nope. The only terminals inside the unit are for wiring in a Neurio current monitor. I kind of wish it could be hardwired since the WiFi occasionally has trouble going through our garage door/brick and the outdoor wall connector disconnects from time to time.
Note: The "leader" wall connector broadcasts its own wifi to the "follower" wall connectors. So, even if your home wifi goes out the wall connectors will continue to PowerShare correctly.
#10 wire cannot be used with a circuit breaker larger than 30A. You need #8 wire.
@@Kimandy6862 #10 THHN has an ampacity of 40A, derated 80% to the charger’s rate of 32A.
Double check that. 240.4(D)(7) limits #10 wire to a 30 amp circuit. That front charger should be limited to 24 amps to be code compliant.
Yikes, why not just run #6 THHN all over? You don’t want your connectors to overheat, and if you get inspected, it might fail.
Nice setup!
@@fiehlsportonly 40 amps at 90C. Most breakers are rated at 75C as well as I believe the Tesla Wall Connector. So #10 is 35 amps
So they're not actually sharing the same circuit, you just have it set up to limit the maximum amp draw of your whole house?
Correct, the standard Gen3 wall connectors cannot be wired to the same circuit. (Per the manual)
However, the new universal connector allows you to daisy chain the wiring so two or more can share a single breaker, and you would configure power share in the same way.
can you charge max if all 3 cars are charged at the same time? i have a 240 outlet and a wall connector, when both are charging i get 1 car at 31mi/hr and other at 38 mi/hr
When all 3 are plugged in and charging the maximum amount for each wall connector is 24 amps. (Or whatever that is in mi/hr!) :-) If one car stops charging the other 2 will bump up to a maximum of 36A each. (72A network total)
@@fiehlsport thanks
Does the current bump up when the car is done charging or do you have to unplug it? I have two wall connectors grouped and when one car is fully by charged the current draw on the other car doesn’t go up until I physically unplug the fully charged car.
So if you had a 100 amp circuit, would that effectively allow you to draw more amps from multiple wall connectors when charging at the same time? I.e. could two teslas be charging at the full 48 amps simultaneously
In that scenario, a 100A circuit feeding a subpanel would need to be protected by an 80A current limit you'd set in the Wall Connector software. So both would charge at 40A simultaneously.
@@fiehlsport I see. Is the current limit to adhere to code?
@@eyehear10 exactly. EV charging equipment is considered a “continuous load” so it must be derated to 80% of the circuit’s maximum ampacity.