We have a company switch that Reads 120/208V 3 Phase 100 Amp Max. We have a rental coming in that has a computer that needs 220V. I figured there would be an adaptor that goes from 2 legs hot and ground cam lock to some flavor or a 220v outlet. Is this possible? Thanks
Phase to phasevoltage will be 208V. If the guest computer will not run on that, you need a 120V t0 240V step up transformer.
I'm also suspicious of "220v" as almost nothing, on either side of The Big Pond, is specified for that voltage. About 20 years ago the UK and most of the EU "harmonised" on 230V. Parts of Japan are still 100V.