welding cable size.

[I_Love_Plasma]

I know you mean the actual output cables.. but.

The power arc 200 power consumption at peak is (40A @ 220V). If you get a flexible drop power cable for it it will be cheap it looks like. This way your unit is real close to you. (240v ends and plugs are like 3-20 bucks a piece not a big deal in price there. Depending if you use the crow's foot one or 4 blade. Check around.)
6ga http://www.wireandsupply.com/product_p/so-0604-01.htm $325.00 per 100 feet.
8ga http://www.wireandsupply.com/Product...03-01&CartID=1 $300.00 per 100 feet.

1ga http://www.wireandsupply.com/WELDING...p/wc-1g-01.htm $195.00 per 100 feet x 2 cables + & - =390
2ga http://www.wireandsupply.com/WELDING...p/wc-2g-01.htm $185.00 per 100 feet x 2 cables + & - =370