http://tinyurl.com/yhvwr6x

is an inverter. If you select the second picture, you'll see the DC
input terminals. They unscrew so that a spade terminal such as this can
be connected

http://www.dse.com.au/cgi-bin/dse.st...uct/View/H3219

But what's the term used to describe the terminal on the device?

Sylvia.