Interesting question Jeff. I did a quick search at
http://www.xantrex.com/support/ to get the specs on that unit, but the
manual doesn't seem to address whether the unit is self limiting on the A/C
draw. I have a Prosine unit that you can set the charging circuit so that
there is a limited a.c. amperage draw. Because they have made so many
changes to these units over the last few years, you may have to contact
Xantrex, who bought out Heart and provide them with the s/n of your unit to
obtain an answer. Wish I could have helped more.