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J21K Series - United Electric Controls

J21K Series - United Electric Controls

J21K

J21K SeriesJ21K Serieshow to orderBuilding a part numberSelect a TypeRefer to the “Type” section belowDetermine type number based on switchoutput, enclosure, adjustment andreference.Fill in the type portion of your partnumber with the corresponding number.Select a ModelRefer to the “Model Charts”Determine model based on adjustablerange, deadband and proof pressure.Fill in the model portion of your partnumber with the corresponding number.Select an OptionRefer to the “Options” sectionDetermine option number based onswitch output, optional materials orother product enhancements.Fill in the option portion of your partnumber with the corresponding number.Leave “option” portion blank if nooptions are needed.typeDESCRIPTIONFor multiple options: Call UnitedElectric Controls.Differential PressureType J21K - one SPDT output, internal adjustment with no reference dial.switch Options*0140 Gold contacts, 1 A 125 VAC resistive0500 Close deadband, 5 A 125/250 VAC resistive1520 Adjustable deadband, 15 A 125/250/277 VAC resistive; adjustment wheel changes rise setting only.If adjustment on fall setting is required use primary adjustment1535 High ambient, 15 A 125/250 VAC resistive; temperatures up to 250°F (121°C)1537 Vapor sealed switch, 15A 125/250 VAC resistiveother OptionsM201M277Factory set one switch; specify increasing or decreasing pressure and set pointRange indicated on nameplate in kPa or MPa, factory selectedM278 Range indicated on nameplate in Kg/cm 2M405M406M444M446M550M900European ATEX Intrinsic Safety complianceIntrinsic safety compliance per Russian Rostechnadzor (GOST-R)Paper ID tagStainless steel ID tag & wire attachmentOxygen service cleaning; alcohol cleaning to remove residue from the process connection.Not available model 254Watertight conduit fitting; converts 7/8” hole to 1/2” NPT fitting. Required for product to meetEnclosure Type 4X*All switches have limited DC capabilities. Consult factory for details.6 w w w . u e o n l i n e . c o m J 2 1 K - B - 0 5

J21K Seriesdimensional drawingsDimensional drawings for all models may be found at www.ueonline.comType J21KInternal Set Point AdjustmentDimension AModels Inches mm NPT127-16020 8.06 204.7 1/4S127B-16021 8.86 225.0 1/2232 6.53 165.9 1/4254 6.50 165.1 1/4357 6.88 174.8 1/4All dimensions stated in inches (millimeters)Pressure SensorsModel 127-16020Model S127B-16021Model 232Model 254Model 357J 2 1 K - B - 0 5 w w w . u e o n l i n e . c o m 7

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