mikelb
Member
I have a dryer outlet that is 30A, 250V. Is it safe to charge by unplugging the dryer and plugging in the EV when I need to charge, and plugging in the dryer when it's needed? Are there any safety concerns?
Thanks!
Thanks!
DO NOT, UNDER ANY CIRCUMSTANCES, plug an unmodified 120v evse, such as the one that came with your Leaf, into a 240v outlet.mikelb said:I have a dryer outlet that is 30A, 250V. Is it safe to charge by unplugging the dryer and plugging in the EV when I need to charge, and plugging in the dryer when it's needed? Are there any safety concerns?
Thanks!
Graffi said:As was already stated, you can get an EVSE rated 24 amps or less, or update the circuit to 40 amps and use a 30 amp EVSE. This would be my choice, as long as the wires will handle 40 amps. Just replace the circuit breaker, then install an additional outlet next to the current one, using the type of outlet that the EVSE uses. Leave both the dryer and the EVSE plugged in all the time, but NEVER use the dryer when the EV is charging.
Read through the information provided re: neutral vs. ground is this previous thread:Phatcat73 said:Similar question. I have a Bosch 240V 16 amp EVSE and an unused 3 prong 240V 30 amp dryer outlet (considered the old style outlet). The EVSE requires a hard wired connection. I purchased a dryer cord, installed it to the EVSE and found that it works!
However, the Bosch requires 2 hot leads and a ground, whereas the 3 prong outlet has 2 hot leads and a neutral.
Is this safe? If not, how is evseupgrade getting around this with their adapter?
Thx.
Mark
Graffi said:Leave both the dryer and the EVSE plugged in all the time, but NEVER use the dryer when the EV is charging.
30 Amp manual xfer switch (generator panel) feeding 2 permanent 30A outlets 14-30R & 6-30R, but money would be better spent on a chunk of 8/3 loomex or teck cable c/w 40A breaker for the EVSE. The breaker will run cooler and from what I've seen in the field most L2 EVSE's manufacturer specs require this. Canadian electric code would would require 2 dedicated circuits. I can't see it any different in the States.LeftieBiker said:Yes, that's why I suggested an either/or switch.
TonyWilliams said:Graffi said:Leave both the dryer and the EVSE plugged in all the time, but NEVER use the dryer when the EV is charging.
That is neither code, nor safe.
You are literally betting a possible fire that the circuit breaker will save the day.
QueenBee said:Same could be said about having multiple receptacles on a 120 volt circuit. Circuit breakers save the day thousands and thousands of times a day.
Nubo said:QueenBee said:Same could be said about having multiple receptacles on a 120 volt circuit. Circuit breakers save the day thousands and thousands of times a day.
Two heavy-draw devices on a 240V circuit is essentially a planned, deliberate and extreme overload at high power levels. Breakers save the day, yes that's their job. But still, don't take foolish chances. Breakers can and do fail. 240V devices by their nature are both high-voltage and high-amperage. While overloads of any type are to be avoided, they're generally more severe in the case of 240V circuits. And there's a difference between an incidental overload, and designing an overload.
garygid said:Technically, the 3-prong dryer socket is ungrounded, wired as 2 hot lines and the Neutral, right?
Then, the dryer is allowed to use the 10-30 Neutral slightly incorrectly as the chassis Ground, right?
CGKyle said:Heavier wire though would require a larger type of switch.
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