Reliability and easy mounting. It can be used to start and stop automation of pumps, electrical control valves and alarms etc.
For water, waste and corrosive liquid. It also can be directly attached to a small drainage pump.
Motor load current
Operating room temperature
Key can be connected with the controlling circuit of pumps.
The differential positions of liquid can be settled by the counterweight, which is ringed on the cable of key switch. The ring on the counterweight is designed for blocking the counterweight on the cable to set the positions.
Use wire black and blue for filling closes when down opens when up.
Use wire black and brown for empting opens when up closes when down.