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?

[Herring]

Are you looking to buy something like this: http://www.stayonline.com/detail.aspx?ID=2958

Aren't your monitors 100-240v auto-switchable? Most of them are.

You can consider this:
http://www.xantrex.com/web/id/63/p/1/pt/10/product.asp

Or just build it yourself, then you have no 110/220 conversion-issues.
Get a Pelican case (1440 Top Loader Case), put two big sealed lead battereries in it together with a charger, an inverter and install the plugs you want. I made it for approx. E600.00, it has 4pin XLR outputs for 12volt and two standard (schuko) 220v plug outputs. And a standard 220v input for charging.

[Andrew McCarrick]

Actually I'm thinking this would 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?

[Cail Young]

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?

Bad things happen. It isn't the line that decides how much power the device gets - the device will just draw what it wants and if your power supply or cabling isn't up to it, you'll (at best) trip a breaker or fuse or (at worst) start a fire.

[Andrew McCarrick]

Okay, So now 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 ?