Square D 9013FSG2J20 Female Water Pump Pressure Switch, 20/40 PSI – PSF418

Fitted phase:1 phase or 3 phase (15 or 230 volt / at 115 volt 1 phase it will handle 1.5 hp, at 230 volt 1 phase it will handle 2 hp, and at 230 volt 3 phase it will handle 3 hp.)
Preset on pressure: 20 psi/ the contacts close at this pressure to send power to the motor/ pump.
Preset off pressure: 40 psi/ the contacts open at this pressure to shut power off to the motor/ pump.
Min pressure: 20 psi Can be wired 1 phase or 3 phase. 15 or 230 volt / at 115 volt 1 phase it will handle 1.5 hp, at 230 volt 1 phase it will handle 2 hp.
Product Specification:
Type: 20-40 PSI Well Water Pump Pressure Control Switch
Material: Plastic shell & Cast Iron
Color: Grey shell
Connection :female 1/4″ NPT
Max pressure: 40 psi
Min pressure: 20 psi