MikeHolliday
Member
You keep saying this. There is no "16-20". We have been talking about a 6-20.
No, it really isn't. The word "circuit" has its roots from the same source as "circle" for good reason. It is one complete loop. It is one circuit, one loop. You connect the breaker on different places on the panel so that it gets a higher voltage potential, but it is still just one loop of wiring on that circuit, and it uses the amount of current that it says--not double.
Yeah, we already covered all of this by page 2. Load calculation already showed that he only had 10A to spare, so he needs to use the DCC-9 to manage the load.
Yes, I am very well aware of that section of code. And further, that in the newer section 625, which was added in NEC 2017, that it just defines ALL EV charging as continuous loads, regardless.
No, that is not what that means at all. This isn't about "turning it down a little" from how it's installed. That is an internal configuration switch which is set to define the load of the appliance. You don't have to treat the wall connectors as always 100A circuits or 60A circuits because that was what they are built to be capable of. If you are putting it on a 40A circuit and configuring it to BE a 40A circuit device, then that is what you use for the load calculation. It's a 32A continuous, requiring a 40A circuit.
Yeah, all EVSEs are already built to comply with that type of limitation all the time. People just need to make sure they are clear about what they are reading to know what the current number is referring to. The device may be talking about either what current it supplies or what level of circuit it is supposed to be installed on, and obviously those numbers will be different.
Rocky,
By Code you are not allow to lower the setting in the Tesla Wall Connector, just so that you are not over drawing your Breaker Box. The Code State that the Breaker in the Box must have all calculations based on its MAXIMUM output the device possibly draw. Yes, I know know that I can set my Tesla Wall Charger to different Charge Rates, but the Calcultations must be based on its maximum draw which in the case of the Gen 3 Wall Connector is 48 Amps. Since Charging an Electric Car is considered a a Continuous Load the Breakers must be 25% greater than the maximum load, not 20% which is what is normally used. So, in the case of the Tesla Gen 3 Connector, 48 Amps time 1.25 equals = 60 Amps at 240 volts. By IBC (International Building Code) you cannot simply Set the Tesla Wall Connector to a lower setting and use a smaller breaker...