Service:Air and non-combustible, compatible gases.Wetted Materials:Consult factory.Temperature Limits:-40 to 140°F (-40 to 60°C); 0 to 140°F (-17.8 to 60°C)for 1950P-8, 15, 25, and 50. -30 to 130°F (-34.4 to 54.4°C) for 1950-02.Pressure Limits:Continuous: 1950’s – 45″ w.c. (0.11 bar); 1950P’s – 35 psi (2.41 bar); 1950P-50 only – 70 psi (4.83 bar). Surge: 1950’s – 10 psi (0.69 bar); 1950P’s – 50 psi (3.45 bar); 1950P-50 only – 90 psi (6.21 bar).Enclosure Rating:NEMA 3 (IP54), NEMA 7 and 9.Switch Type:Single-pole double-throw (SPDT).Electrical Rating:15 A @ 125, 250, 480 VAC, 60 Hz. Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz.Electrical Connections:3 screw type, common, normally open and normally closed.Process Connections:1/8″ female NPT.Mounting Orientation:Diaphragm in vertical position. Consult factory for other position orientations.Set Point Adjustment:Screw type on top of housing.Weight:3.25 lb (1.5 kg); 1950-02 model 4.4 lb (2 kg).Agency Approvals:CE, CSA, FM, UL.