United Electric Differential Pressure Switch, J21K Series Type J21K Model 357
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J21K-357

Series: J21K Series Type J21K Model 357 Differential Pressure Switch Brand: United Electric Controls Ltd
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United Electric Differential Pressure Switch, J21K Series Type J21K Model 357 United Electric Differential Pressure Switch, J21K Series Type J21K Model 357

Specifications

Brand

Ambient Temperature Range

  • -40° to 71° C (-40° to 160° F), Set Point Typically Shifts less than 1 % of Range for a 28° C (50° F) Ambient Temperature Change

Applications

  • Refrigeration (Chiller) & Compressor

Approvals & Certifications

  • ISO 9001

Approvals & Certifications

  • ATEX Ex directive (94/9/EC) II 1 G EEx ia IIC T6, Tamb: -50° to 60° C (-58° to 140° F)
  • CE
  • CSA C22.2, No. 24 File # E42272
  • GOST R 51330.0, 51330.1, 51330.10 & 51330.14
  • Low Voltage Directive (LVD) 73/23/EC & 93/68/EEC
  • PED: 97/23/EC
  • UL (C,US) 508

Conduit Connection

  • 1/2” NPT Fitting

Deadband

  • psi: 2 to 4 (kPa: 13.8 to 27.6, bar: 0.1 to 0.3)

Electrical Connectors

  • 7/8” Diameter Conduit Hole

Electrical Contacts

  • Normally Closed
  • Normally Open

Electrical Rating

  • 1 A at 125 Vac Resistive
  • 15 A at 125/250/277 Vac Resistive
  • 15 A at 125/250/480 Vac Resistive
  • 5 A at 125/250 Vac Resistive

Enclosure Finish

  • Epoxy Powder-Coated

Enclosure, Body Material

  • Gasketed Die Cast Aluminum

Environmental Protection

  • IP66
  • NEMA 4X

NPT Connection

  • 1/4” NPT Female

Operating Pressure

  • psi: -14.7 to 350 (kPa: -101.4 to 2,413, bar: -1 to 24.1)

Process Connection Material

  • 316L Stainless Steel

Proof Pressure

  • Differential Proof Pressure - psid: 70 (kPa: 482.6, bar: 4.8)

Repeatability

  • ± 1 % of Full Scale Range

Set Point - Decreasing

  • bar: 0 to 4.8
  • kPa: 0 to 482.6
  • psi: 0 to 70

Set Point - Increasing

  • bar: 0 to 4.8
  • kPa: 0 to 482.6
  • psi: 0 to 70

Shock

  • Set Point Repeats after 15 G, 10 millisecond Duration

Storage Temperature

  • -54° to 71° C (-65° to 160° F)

Switch Type

  • SPDT (BZ-R814-P4)

System Pressure

  • bar: 24.13
  • kPa: 2,413
  • psi: 350

Vibration

  • Set Point Repeats after 2.5 G, 5 to 500 Hz

Documentation

Data Sheets

Catalogs

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