220V Single Phase Pump Control Panel Rated Frequency 50HZ With Segment Display

Description : S521 intelligent pump controller single phase 220v ,it has the function of dry run protection with sensor free ,it can memorize the wroking ampere when the pump motor under normal state ,if the controller detected that the real running ampere value lower than the calibrated working ampere which will order pump stop running automatically . Electrical connection to the power supply line and electrical pump : Application : Control and protect universal pump Using