EIJ-4500 Series is used to control the pump performance operating under a wide range of the system conditions and for energy saving. The VFD can be used in pressure boosting systems and water treatment etc. It is self-cooling and can be installed directly on the motor. Optional: Mobile App on Android and IOS IP Class : IP55 Input Power : 1PH 220/240V Output Power : 3PH 220/240 V External Comm : RS-485/ Phone Applications (Android/IOS) Max. Linkage Inverter : Up to 3 (Three) linkage inverter by RS485 LCD Screen : Available the back-light to indicate the pump condition (RUN/STOP/ERROR)