"it is a matter of intelligent layout and PCB material for a high voltage input stage to withstand those environmetal conditions. Simply isolating the contacts and NOT changing the footprint does not help at all. Vita86 connectors cost more than $1,200 compared to $30 for standard VITA62" states Claus Gross, President of PCI Systems Inc.
Check out our LOW COST version:
PCI_800.116 600W 270V isolated Smart PS (Datasheet)