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Leaving car while charging in public places of NEMA 14-50
- Thread starter BestHand
- Start date
Derek Kessler
Active Member
in theory all they could do is unplug the 14-50 end and/or take the plug out the UMC. UMC itself would be locked into the car.
Snow Drift
[Off-Road Assist] Activated
Yes, the public part can be disconnected, however, the adapter is locked (if the car is locked). I was also worried, so I bought this:
CapturePro J1772 Lock
CapturePro Charging Lock for Tesla Model 3
This collar locks the public end to your adapter and cannot be removed unless you unlock the car, or use a strong cutting device.
CapturePro J1772 Lock
CapturePro Charging Lock for Tesla Model 3
This collar locks the public end to your adapter and cannot be removed unless you unlock the car, or use a strong cutting device.
So, basically it is not secure. This adapter cost about $59-79, not huge, but not too cheap to lose it too often...
I believe he's referring to using the UMC on a 14-50, not a public charger with the j1772 adapter.
Just to clarify are you talking about using a J1772 public charger with the adapter or are you talking about using the UMC with 14-50. I think the 14-50 plug for the UMC is $35. Model S/X/3 Gen 2 NEMA Adapters
eBay. So many items priced higher than retail there. Buyer beware.
I could see somebody who damaged their adapter (bad connection with NEMA 14-50 outlet can lead to burned/melted blades) stealing the adapter as it is so easy.
Yeah they could steal it but it is only $35, probably cheaper if you buy it from ebay from other owners who does not need it:
Model S/X/3 Gen 2 NEMA Adapters
Model S/X/3 Gen 2 NEMA Adapters
Snow Drift
[Off-Road Assist] Activated
Oops, you are correct.
The CapturePro is for J1772 plug for a public charger like Chargepoint, it is NOT for a Tesla UMC adapter. I misread your OP.
I don't know of a way to secure a UMC adapter. The main device/cord would be locked to the car, but the pigtail adapter could be stolen.
Daniel in SD
(supervised)
Well if you never need any other adapter other than the 14-50... I guess you could super glue it!
They could unplug you and then use the free end to pummel your car
actually, it could be wrapped in some kinda bag with the lock, sound crazy, but doable.Well if you never need any other adapter other than the 14-50... I guess you could super glue it!
eprosenx
Active Member
Unplugging a UMC gen 1 with 40 amps of load or a UMC gen 2 with 32 amps of load would likely result in a decent size arc. It would not be good for the plug or receptacle. I am not sure how dangerous that size of arc would be at 208v / 240v, but it would not be great.
Have you ever unplugged even a 120v plug from say a dryer while it was running? This would be a much bigger arc than that.
But to answer your question, I would not be too worried about charging in public off a 14-50 unless it was a high traffic / high crime area. As others have mentioned, the UMC is locked into the car by its connector. People could always steal the $35 Tesla adapter, but then again, the meth heads can also cut the wire at the car end and strip the copper from the wire to sell...
I asked my question wrong. It should be "Is it secure...". I am myself electrical engineer by education, and played with an arc when I was a 13-14 years old at home (in my country voltage was 220V, I limit the current to about 5A including iron or other powerful device in a circuit).
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