Pressure Switch, Water Pump, Standard Action, Factory On/Off Setting (PSI) 60 to 80, Pressure Range (PSI) 10 to 80, Adjustable Differential, Differential Pressure (PSI) 15 to 30, Burst Pressure (PSI) 220, 1, Port Type 1-Port 1/4 In. NPS (Female), - Unloader, Diaphragm Actuation Type, Manual Switch Action Auto/ Start/ Off, Single/Three Phase, DPST Contact Type, 10 Amps, Overload Protection (Amps) -, 1-1/2, 2, 3, 1, NEMA 1 Enclosure, Temp. Range (F) -22 to 257 Pumptrol Water Pump Pressure SwitchesDesigned for direct control of electrically driven pumps. Can be used with motor starters to control higher horsepower motors. Temp. range: -22 to 257 F.UL Listed and CSA Certified. NSF 61 Annex G and NSF 372 Certifications. NSF 372 on 9013G NSF 61 Annex G on 9013FSG.1and 2-pole, HP Rated 1/4" female connection Diaphragm actuated Standard action contacts open on rising pressure Reverse action contacts open on falling pressure NEMA 1 enclosure