Dan Miller wrote:
Is it possible to wire a 3 phase switch for two phase power?

By 2-phase, I assume you mean 2 pole. As in wiring a 220V motor
for example.

I did this with a 3/4 hp exhaust blower for my shop. I bought
a 3 pole squareD switch off eBay for $4 and wired each hot to a
pole. The third one was left empty as Alan said.

Jeff Dantzler (also in the Emerald City)