What is the Pump Protector – DRP?


The Pump Protector - DRP is an innovative electronic device that guarantees optimal protection of the submerged pump from dry running. Additionally, it also protects the motor from burning out in case of repeated starts and stops.

Where is the DRP installed and how does it work?
The DRP is ready for use, integrated into the connection cable and needs no further installation. In case of water shortage, the DRP stops the pump immediately, the water drops below the DRP and restarts the pump automatically a short time after the water rises above the DRP to allow water to flow into the borehole. In contrast to traditional solutions, no additional cables, sensors and control boxes are needed. The DRP device has been developed and tested to make the submerged pump function autonomously in conditions of water shortage.


In case of repeated starting and stopping of the pump, such as when the air in a pressure tank is low or the membrane is damaged, the DRP registers the frequent starts and stops and will automatically stop the motor from burning out. The DRP may be reset simply by disconnecting the power supply.

      RSD

What are the technical limitations?
NOW the Pump Protector - DRP is available for Franklin motors single-phase as well as three-phase.

- The blue DRP for single-phase use has a permissible range of 220-240V at frequency 50/60 Hz.To manage the inductive load of a single-phase motor, the maximum motor power is limited to 2.2 kW.

Important installation tip:
If the Pump Protector DRP is used in boreholes of exactly 100mm diameter, you need to use the special bent pipe connection RSD to offset the pipe in the borehole to give space for the Pump Protector - DRP.