Wiring a eTopxizu 12v 30a Dc Switching Power Supply to USA 240 volt plug?
As neither current-carrying conductor (L or N) should be connected to ground in the power supply, it can be used on a US 220 Volt circuit when set to 220 volts.

However, why would you want to do this? - 360 watts is an easy load for a normal 120 Volt outlet.