Barksdale CD1H, CD2H Series House Diaphragm Switch


Barksdale CD1H, CD2H Series  House Diaphragm Switch Image

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Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches provide an ideal solution 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. These snap-action switches may be wired normally open or normally closed through a 3/4"-14 NPT conduit connector to free leads to 18". All models feature self-locking set screw adjustment and dials which are calibrated for increasing setting. For applications requiring a highly accurate switch in a durable package, Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches are the ideal choice. Stripped models are also available.General Specifications*Accuracy:+/- 0.5% of the adjustable rangeSwitch:Type:Rating:Single pole double throw (SPDT) single or dual circuit10 amps @ 125/250 VAC, 3 amps @ 480 VAC (Class A or H limit switch); Consult sales drawing for ratings of optional limit switches.Wetted Parts:Process Fitting:Diaphragm:Enclosure:304 stainless steel17-7 PH stainless steelAnodized aluminumElectrical Connection:Free leads approximately 18" long, 16 AWG through 3/4" NPT conduit connector.Enclosure Ratings:NEMA 4Pressure Connection:1/4" NPT femaleApprovals:UL:All models are Underwriters’ Laboratorieslisted in the Electrical Construction Materials Directory under Industrial Control Equipment, float and pressure-operated; File E42816, and Canadian Standards Association listed under Guide 380-W-1.16, Class 3231, File 22355.Temperature Range:Operating:Storage:-40° to +165°F (-40° to +74°C)-65° to +200°F (-54° to +93°C)Adjustment Instructions:Pressure:Vacuum:Turn self-locking adjustment screw counterclockwise to increase pressure settingTurn self-locking adjustment screwclockwise to increase vacuum settingOptions:-Cleaned for Oxygen Service-1/2" NPT Pressure Port-NEMA 4X enclosureShipping Weight:Approximate 1.75 lbs.* See product confi gurator for additional options.Wiring CodeLeadCircuit #1Circuit #2PressureVacuumPressureVacuumNormally ClosedBlueRedOrangeYellowCommonPurplePurpleBrownBrownNormally OpenRedBlueYellowOrange