I have machine that has both a 3ph 240v plug and a standard 1ph 120v plug that need to be simultaneously plugged in for powering it. I would like to tap into the 3ph connection that goes to the motor to get the 120v so that there is a single plug for the machine if possible. I am wondering whether or not it is ok to directly tap into one of the 3ph legs to get the 120v (and have both the 3ph motor running and the 120v drawing at the same time - 120v line would be pulling less than 3 amps)? Would it be ok to have a current imbalance between the 3 hot legs of the 3ph supply while the motor is running? (due to drawing some current for the 120v from one of legs) If not, do you guys know of a small 3ph to 1ph converter that I can jump from the 3ph supply, so that we can take an equal amount of current out of all three legs for the 120v without disturbing the 3ph connection to the motor? Any help or advise would be much appreciated!