What determines is 3-phase is 208 or 480? Would it be determined by the way it's wired? Wye or Delta?
- qrkLv 74 months ago
It's determined by the needs of the user. Technically, it's determined by the turns ratio of the transformer.
You would use 480 3-phase for systems that require more power than what a 208 3-phase system can supply.
Outlet current is generally 30A maximum, but 208 3-phase does have an outlet that goes up to 60A. Wiring gets expensive when dealing with 60A circuits.