240v. / 1phase equip. compatible with 240v / 3 phase / 3 wire system?
240v. / 1phase equip. compatible with 240v / 3 phase / 3 wire system?
(OP)
I have a spare 2 pole / 30amp circuit breaker in a 120/240 / 3 phase / 3 wire electric panel. Can I connect a 30amp / 240v. single phase water heater to the 3 phase panel?






RE: 240v. / 1phase equip. compatible with 240v / 3 phase / 3 wire system?
There is such a thing as a 3-phase 240V system with one coil center tapped for 120V, but it is very rare and is certainly more than 3-wire.
Any 3-phase system with more than one voltage will have at least 4 wires, not three.
Why do you think that the system is '120/240 / 3 phase / 3 wire'?
RE: 240v. / 1phase equip. compatible with 240v / 3 phase / 3 wire system?
RE: 240v. / 1phase equip. compatible with 240v / 3 phase / 3 wire system?
If your load doesn't need a neutral and the system is 240 volts line-to-line, the answer is yes - either a 4W hi-leg system or 3W delta system will work.
If you do need a neutral, you would need the hi-leg system or install another transformer to derive the neutral.