If you're using the Elcon WITH the OBC can the key be off? For example, plugging into a J1772 while traveling with a splitter adapter.
Yes, that is no problem at all, to remove the key while to OBC and other chargers are used.
My situation is a little different. J-1772 pilot signal not used in my case, so I adjust my chargers manually to not go over the rating of the charge station. I can charge at 8KW--but not from a 6.6 KW charge station. So I added the switch as shown in my previous message so I can reduce my chargers to 6.6KW by not using the OBC and then take my key out. If you're not going over the charge station rating, you can charge with the key out as long as the OBC is used.
The OBC will close the contactor. So will the key being on. So will my added switch. An external charger without the OBC has no way to close the contactor. If the contactor is open, there is no way to charge.
The DeltaQ's are a bit different with their 1 CPS signal. With it, you can turn the key on for just a second so the contactor closes and then you can remove the key as that 1 CPS signal is used to keep the contactor closed. Any other type of external charger will require the OBC or another method to close the contactor, such as leaving the key on, or use the switch I mentioned in the link in my previous message.
-Don- Auburn, CA