Forward/Reverse motor with one contactor

[drcampbell]

If you were to use a 3PDT-center-off switch, the first two poles could reverse two of the motor leads and the third pole could be used for controlling the contactor. In the up position, the motor runs forward continuously; in the down position it runs in reverse but only while the operator hold the pushbutton down.

A hesitation switch will assure that the motor's de-energized before being reversed.

https://www.eaton.com/us/en-us/catalog/emobility/heavy-duty-hesitation-switches.html

 

[garbo]

Over 50 years in the trade & sorry to say never read or heard of a hesitation switch but have used them plenty of times on pipe threading machines that ran off of single phase 120 volts. On such machines if you were running clockwise to thread pipe you could not switch directly to reverse. Had to stop at the center " off " position then move switch to reverse.