1.Specification of Electric Pressure Switch 
 
Rated Voltage 230V AC,110V AC
Frequency         50/60Hz                                       
MAX. current 10                                                          
Max.power  1.1KW 1.5KW
Starting pressure setting 1.5bar,2.2bar
Max.working pressure10bar
Protection rating:    IP65                   
Flow at dry running            30-60L/h
Max.working temperature:60degree                                          
Connection thread: R1"                                      
Wiring requirement:Cable diameter 7.5-8mm                                                                         Button    Restart

2.Function

1.Start and stop the pump automatically     
2.protect the pump from damage caused by dry-running