Description: The electric switch is used in water systems, start and stop the pump automatically. Examine the water automatically, stop the pump in the case of water shortage, protect the pump from damage caused by dry-running. Completely replaced traditional pump control system composed of pressure switch, pressure tank and check valve etc. Specifications: Power supply: 100-120V Frequency : 50/60HZ Max Current: 30A Max pump HP: 1.1KW Max. Working Bar Pressure: 10 Bar Inlet&Outlet Pipe Size: 1'' Max Operation Temperature: 60℃ Application: self-priming pump, jet pump, Garden Pump, clarified water pump, centrifugal pump,et. Features: Automatic start and stop the pump when tap open/close. Reduce water hammer effects. Simple control to maintains constant pressure during operation. Dry running protection to protect motor, extra pump life. In order to avoid the pump on/off & pressure high/low problems. Package Included: 1 X Automatic Pump Controller .