Description Specifications Literature Description Barksdale's CDPD1H and CDPD2H Housed Diaphragm Differential Pressure Switches are the answer for pressure control applications requiring tamper proof external adjustment and environments which require water-tight NEMA 4 housings. These pressure switches are available in single or dual control settings for both positive pressure and vacuum models, to 150 psi. The switches may be wired normally open or normally closed through a 3/4"-14 NPT conduit connection to free leads. All models feature calibrated dials for adjusting setpoints in units can be factory set upon request. For applications requiring a highly reliable, accurate switch in a durable package, Barksdale's CDPD1H and CDPD2H Housed Diaphragm Differential Pressure Switches are the ideal choice.Features:Pressure and vacuum differential switchHigh accuracy diaphragm switchCalibrated dial for easy setpoint adjustmentFactory preset or field adjustableDiaphragm Seal Option AvailableApplications:Pump & compressor monitoringAir proving in HVAC systemsEngine monitoringMachine toolsHydraulic power unitsMetal workingUtility and power generation State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications General SpecificationsAccuracy:± 0.5% of the adjustable rangeElectrical Connection:Free leads approximately 18" long, 16 AWG through 3/4" NPT conduit connectorPressure Connection:Standard 1/4" NPT femaleAdjustable Range (PRESSURE)Decreasing - psi (bar)Increasing - psi (bar)minmaxminmax.4 (.03)17.68 (1.2).72 (.05)18 (1.2)Adjustable Range (VACUUM)Decreasing - psi (bar)Increasing - psi (bar)minmaxminmax0.829.01.830SwitchType: Dual setpoint housed - vacuumRating:10 amps @ 125/250 VAC; 3 amps @ 480 VACWetted MaterialProcess Fitting:304 stainless steelDiaphragm:17-7 PH stainless steelEnclosure:Anodized aluminum Literature & Docs Accessories