Support BladeForums! Paid memberships don't see ads! Hi, I'm thinking of new grinder and really want to get 2HP VFD this time, but looks like it almost exclusively offered wired for 220V. Well, I saw new KMG-TX and they say it runs on 110V too, but I'm a bit reluctant to be one of the first users of that new grinder and it is probably not that efficient on 110 source. So, I wonder if I can safely add 220 outlet in my workshop. The shop is fed by a 10/3 wire coming from AC breaker box (30A fuse), 2 conductors (red and black) are hot, the other 2 (white and copper) have the same source - they are connected together at the AC breaker box. I use Red and Black as 2 independent sources to build 2 lines of 110V outlets to distribute the load - one I use for grinder (15A max) and one for heavy duty shop vac in my dust collection system (10A). As I understand to get 220 outlet I need both hot wires plus neutral white. My question is, once I add 220 outlet, can I still use existing 110 built on the same power source? I.e. for a shop vac which is 10A rated, lights, small power tools etc.