My question involves connecting the hydraulic unit for an automotive lift (BendPak) in my garage. The motor is 220V/Single Phase/2.2Kw. The instructions that came with the unit are pretty sparse but as best as I can interpret... There is a safey limit switch on the top of the lift that I believe should be wired in series with just 1 of the hot leads from the breaker. This just doesn't seem correct. All my past experience with a switch and a 220V motor has involved breaking both legs of the circuit. Has anybody had experience with this? Hook-up seems simple (2 screwed connections on a terminal block) but it just doesn't seem right. Comments Please...

Since the Motor needs to go both directions, probaby going through some type of reversing contactor(usually 2 3 or 4 poles, controlled by 24 Volt transformer, contactor would have 24 volt coils, a Single pole double throw switch, with center off, controls up or down, 2 of the control wires are what you want to interrupt with limits. Can have an up and a down limit, if desired. The limit switch would be normally closed, when limit is reached, up contactor will deenergize.

Stratmondo, thanks for the quick response but the motor goes in only one direction. To lower the vehicle there is a hydraulic valve to bleed the fluid out of the cylinders.

Removing 1 leg for limit is no problem, releasing of lever will then more likely remove power from both sides. Be sure limit switch will handle current of motor.