Energy saver provides timed ON/OFF control of energy-consuming loads like indoor & outdoor common area lighting or exhaust fans. It can protect your pumps where you have to manually switch on and switch off the pump after certain time. Once you set the ON and OFF time from the master push button it will follow the on-off cycle time automatically. Features On Time – ( 10 to 90 Min) Off Time – ( 1 to 20 Hrs ) Intelligent Power failure compensation Timer Output: Star delta. Ultimate protection for submersible pumps. Fully automatic, NO manual intervention.