Thanks Irving,

I didn't want anything guassing my precious server data and the VFD is not going in the rack, just the PSU, drivers and possibly the controller. Just wanted to check in case I was throwing the equivalent of a tesla coil in there ;)

I don't have 3 phase, so I don't think your latter scenario will apply (not yet anyway ;) ), although I was thinking of running a seperate wiring feed to the VFD (and possibly the rest of the machine's electronics) from my consumer unit (I have a spare 32A RCD), just to keep it isolated from the rest of my "stuff".

Cheers


Chris