120v to 240v help

[Andrew McCarrick]

So I'm looking into getting a battery back-up unit to power some AC monitors on-set; which we'd charge each night. The only problem I'm coming across is I can't find a way to convert domestic based plugs (outlet I have to plug into), to a L6-20/30 (outlet of the battery back-up). I need the L6 outlets because the UPS systems with them have bigger batteries in them. I came up with a way to convert the 120v into 240v (via a transformer; http://www.voltageconverters.com/itemdesc.asp?ic=VC500W) but I can't seem to find a way to get the 240v output into a L6 outlet to plug the UPS unit into. Anybody know of anything to get from the consumer 220v outlet to a L6 outlet?

 

[Andrew McCarrick]

Actually I just came across this.... would this work?:
http://www.stayonline.com/detail.aspx?ID=8988
maybe? Just hoping that transformer can take that kind of plug. And what would happen if I plug a 15AMP line into a 20AMP device like the UPS unit? would it just take longer to charge, since it's recieving less power?

 

[GenJerDan]

Changing plugs/sockets, or using adapters shouldn't be a problem.

If something is rated at at 20 amps, that means it is capable of supplying up to 20 amps to something else.

Amps are not "supplied", as such. They are "drawn" or "pulled".

 

[Andrew McCarrick]

Okay, thanks.... then that could be a problem right? Because I believe domestic outlets max out at 15Amps right? And the UPS system requires 20Amps. This all would be charged in a hotel room, so maybe they have 20Amp outlets?

 

[GenJerDan]

Is the UPS 20amps on the AC side, or the load side? That's awful hefty for the AC side...

I it's the AC side, if the hotel has a circuit that can handle 2400 watts, you're golden. (Don't bother asking the desk about amps... maintenance might know, but "normal" folks will think in watts....like hair dryers and toasters and such.)

 

[Andrew McCarrick]

Well, I'm just assuming its using 20Amps because it has a 20 Amp connector.


http://apc.com/resource/include/techspec_index.cfm?base_sku=SU2200RMXLTNET&total_watts=50

That's the one I was looking at.... so would that be 20Amps?


There's also some that have a 30Amp connector, so would that actually be using 30 Amps or no?

http://apc.com/resource/include/techspec_index.cfm?base_sku=SURT6000XLT&total_watts=50

 

[Andrew McCarrick]

Actually, nevermind those two other links... I just realized I can add on external batteries so the 120v UPS will work after all. My only question now would be there are a few UPS that have L5-30:

http://apc.com/resource/include/techspec_index.cfm?base_sku=SUA3000RMXL3U&total_watts=50

So is that actually 30 Amps ?

 

[GenJerDan]

Can't tell. No mention of a fuse in the docs (the fuse rating would let the cat out of the bag).

The inverter/charger shouldn't draw that much. I've never seena rackmount anything that wouldn't run off "normal" household current.

But that doesn't mean this will. Sorry I can't help.

You could probably call APC and find out the specs, though.