In a single phase 208V circuit with no neutral, the two voltage lines are alternating from negative to positive in voltage and they are doing so at opposite times with respect to each other. That is why current flows without a neutral.Click to see full answer. Similarly, is 208v single phase?When using 120/208V single phase, you will use any two of those same three hot conductors, with the two waveforms peaking 120 degrees apart from each other. When one waveform is at its peak, measuring 120V, the other is only part of way through its cycle, measuring only 88V. The sum of the two is 208V.Secondly, how do you wire a 208 single phase outlet? 208V 3 Phase Power Panel Wiring Install a 1 Pole Circuit Breaker (CB) Connect (1) 120V 1 Phase power wire to the 1 Pole CB. Connect (1) Neutral wire to the Neutral Bar. Herein, do single phase motors need a neutral? Neutral connections are only needed on single phase circuits. “Why is a neutral not required?” Well, because in three phase, the phases conduct through one another and a dedicated load like a motor uses all three phases and ONLY all three phases.Does 208v need a neutral?Normally the 208v plug will not need a neutral unless it is for a clock or something 120v like a stove.