Manual control loop for preventing contact from being damaged

The utility model provides a manual control loop for preventing a contact from being damaged, which comprises the following components: a power module which comprises a three-phase main power supply which is connected in series with a first contact of a contactor, a soft starter and a motor; the soft starter start-stop module comprises a soft starter power supply connected to the outer side of the soft starter, and a stop switch and a second contact of the contactor are connected in series between the soft starter power supply and the soft starter; the control module comprises a control power supply, the control power supply is connected with a starting switch, a stopping switch and a first relay contact in series, the starting switch is connected with a coil contact of a contactor in parallel, and the stopping switch is connected with a second relay contact in parallel; the contactor can be automatically started first and then the soft starter during starting, the soft starter can be automatically stopped fi