Pressure control KRS-1 Technical Parameters Rated voltage: 240V 120V Frequency: 50/60Hz Max. Current: 17A/3HP 20A/1.5HP Min. Cut-in: 20PSI Max. Cut-out: 175PSI Pressure Range: 20-40PSI, 30-50PSI, 40-60PSI Inlet Base: Metel Function: 1. Start and stop the pump automatically 2. Protect the pump from damage caused by dry-running 3. Examine the water automatically