I just moved into a high-rise condo and on my patio I have an outlet labeled NEMA L15-30-R 90A 250V 30
and I'm trying to figure out what I can do with it.
I think the intended to be used for the window washers who come twice a year.
On my patio, I want to put a lot of electronics (kegerator, fridge, lights, electric heater, electric grill, etc), so is there a way I can get a 110v receptacle out of it?
I am not allowed to remove/replace the outlet, only plug into it.
Also, if you have any other important thoughts, please do tell.
Best Answer
No. You can't use this for 120V power. The NEMA L15-30 receptacle is intended for 3-phase power applications. Most likely, it is a 208V three phase power outlet lacking neutral. Because there is no neutral, there is no easy or reliably safe way to get 120V power from it. Even if there were a neutral, it would be questionable whether it would be a good idea to apply a load to only 1 phase. There could be circuitry upstream designed to trip on unbalanced loading.
If you want to confirm that it really is a three-phase outlet, simply measure the voltages from phase to phase. This involves sticking voltmeter probes into the receptacle. There is a shock hazard doing this kind of thing, especially if you are using a cheap multi-meter. If you don't feel comfortable doing it, then don't do it. Please don't blame me if you get shocked.