Description Specifications Literature Description Barksdale's D1H Diaphragm Pressure Switches offer superior accuracy in a robust package, making them the ideal solution to your industrial pressure control needs. This single circuit diaphragm switch is ideal for applications demanding instrument class accuracy and where pressure pulsations are less than 25 cycles per minute. Available in various pressure ranges up to 150 psi, diaphragm switches are suitable for use in either positive pressure or vacuum applications. Housed models feature a durable, anodized aluminium enclosure with an integrated 1/2" NPT conduit connector, a tamper-resistant cover for the setpoint adjustment screws, and are rated to NEMA 4 as a standard. For applications requiring a highly accurate switch in a durable package, Barksdale's Diaphragm Pressure Switches are the ideal choice.Features:Stripped and housed versions availableHigh accuracyIdeal for pressure or vacuumEasy setpoint adjustmentNEMA 4Up to 3 setpoints available in one switchDiaphragm seal option available 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 and 1/2" NPT conduit connection for housed modelsPressure Connection:1/4" NPT femaleAdjustable Range (PRESSURE)Decreasing - psi (bar)Increasing - psi (bar)minmaxminmax.4 (.03)17.74 (1.2).66 (.05)18 (1.2)Adjustable Range (VACUUM)Decreasing - In. HgIncreasing - In. Hgminmaxminmax0.829.21.630SwitchType:Single pole double throw (SPDT) Snap Action; single or dual circuitRating:10 amps @ 125/250 VAC; 3 amps @ 480 VACWetted MaterialProcess Fitting:304 stainless steelDiaphragm:17-7 PH stainless steelEnclosure:Anodized aluminum Literature & Docs Accessories