120 208 1 phase diagram. A 208v 3 phase power panel provides 3 power circuit types 120v 1 phase 208v 1 phase 208v 3 phase in 7 circuit configurations based on circuit breaker cb type 1 pole 2 pole 3 pole and position 1 2 3 etc as shown below. 208 is single phase because there are only two conductors involved. Phase b the high or wild leg is not used as the voltage to neutral is 208 volt. That graphic 120 208 single phase wiring diagram difference.
There is only one way to look at. How can 208 be single phase. Locate and identify the phase conductor lines on. Similar to the three phase three wire delta discussed above but with a center tap on one of the transformer winding to create neutral for 120 volt single phase loads.
A 208v 3 phase power panel provides 3 power circuit types 120v 1 phase 208v 1 phase 208v 3 phase in 7 circuit configurations based on circuit breaker cb type 1 pole 2 pole 3 pole and position 1 2 3 etc as shown below. 2010 04 03 184015 2010 04 03 184015. Power down the 208 v 3 phase power distribution system. Single phase 120v 1 pole circuit breaker 120v 1 phase phase a neutral 120v 1 phase phase b neutral.
Motors are connected to phase a b and c while single phase loads are connected to either phase a or c and to neutral. At this time we are delighted to announce we have discovered an incredibly interesting niche to be discussed that is 208v single phase wiring diagramsome people attempting to find information about 208v single phase wiring diagram and definitely one of these is you is not it. Put on electrical safety glove and observe all electrical safety precautions. Single phase motor wiring diagrams single voltage motor 208 230v ccw cw l2 l1 t1 t8 t4 t5 t1 t5 t4 t8 dual voltage motor 115v or 208 230v 208 230v or 460v low voltage high voltage ccw cw ccw cw l2 t1 t3 t8 t2 t4 t5 t1 t3 t5 t2 t4 t8 l1 t1 t3 t8 t2 t4 t5 t1 t3 t5 t2 t4 t8 l1 l2 dual voltage motor with manual overload mo 115v or 208 230v 208 230v or 460v low voltage high voltage ccw cw ccw cw.