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That may be true if the choice for new owners was 14-50 or 6-50. But what this actually means is mass market, non-forum reading new owners won’t know about either of those choices, what they’ll do is default to buying a $500 Wall Connector that isn’t necessary.I actually applaud this from a technical standpoint.
14-50’s are really stupid ways to power EV “chargers” (or rather EVSE’s).
A 6-50 is much better. No wasted copper for a neutral. By not including a 14-50 it does not encourage the use of 14-50’s..
Uh, no. That is a requirement of electric code, not some concerned suggestion from fatherly Elon Musk. Continuous loads must be on a circuit rating that is 125% of the constant current load.The story goes that Elon thought that a 50 circuit was to high of a charging current for most households and derated it to 40 amps.
That’s nonsense. Continuous loads can only draw 80% for safety, and that rule was developed long before EVs. The Gen 1 UMCs for the Model S and X drew 40A and it wasn’t until Gen 2 UMCs last year that the draw was reduced to 32A.ucmndd is correct. the nema 14-50 adapter would be derated to 40 amps, however, I was informed that the actual charging current, controlled by the car, would be only 32 amps. The story goes that Elon thought that a 50 circuit was to high of a charging current for most households and derated it to 40 amps. The car's charging circuiry drops it to 32 amps. For those using a 14-50 adapter for their home charging setup can check me out on this.
I have re-purposed my electric dryer circuit (30 amp breaker), using the nema 10-30 adapter from Tesla. The cost, almost a year ago, was $25 plus tax. I am charging at 22amps, which gives me about 22 miles per hour.
So now Tesla has a path to reducing the included mobile charger to 120V 12A. That should save a lot. But I think the 14-50 adapter will stage a comeback. It's not just at campsites anymore.
I can’t imagine Tesla would do that. I haven’t seen a survey in a while but I would guess that >50% of those Tesla owners who charge at home do so using a 240V outlet rather than a Wall Connector, plus some of those with a Wall Connector use 240V charging at a vacation home or friends/family member house when traveling. Even when Tesla tried to discontinue the less common 30A adapters a few years ago there was such an uproar from owners that Tesla brought them back.So now Tesla has a path to reducing the included mobile charger to 120V 12A. That should save a lot. But I think the 14-50 adapter will stage a comeback. It's not just at campsites anymore.
That’s nonsense. Continuous loads can only draw 80% for safety, and that rule was developed long before EVs. The Gen 1 UMCs for the Model S and X drew 40A and it wasn’t until Gen 2 UMCs last year that the draw was reduced to 32A.
Uh, no. That is a requirement of electric code, not some concerned suggestion from fatherly Elon Musk. Continuous loads must be on a circuit rating that is 125% of the constant current load.
I really am curious. Where did you hear that story?
For Canada they did it earlier to get ULC approval, and the problems with 40A was well known and ranged from RV parks often having problem with 40A to the UMC often getting hot.That’s nonsense. Continuous loads can only draw 80% for safety, and that rule was developed long before EVs. The Gen 1 UMCs for the Model S and X drew 40A and it wasn’t until Gen 2 UMCs last year that the draw was reduced to 32A.
NEMA 15-40 limits you to 30 amps, right?