United Electric Differential Pressure Switch, J21K Series Type J21K Models 127 to 16020
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J21K-127-1520-M277-M446-M550-M900

Series: J21K Series Type J21K Models 127 to 16020 Differential Pressure Switch Brand: United Electric Controls Ltd
Price
$1,452.00 CAD
Stock
25+ In Stock
Request Information

  • Model - 127
  • Switch Option - Adjustable Deadband, 15 A, 125/250/480 Vac Resistive
  • Factory Set Point - No Factory Set Point
  • Measurement Range - kPa or MPa
  • Agency Approvals - Without Additional Approvals
  • Tag - Stainless Steel ID Tag & Wire Attachment
  • Cleaning - Oxygen Service Cleaning
  • Electrical Connection - Converts 7/8” Hole to 1/2” NPT Watertight Conduit Fitting

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

  • ATEX Ex directive (94/9/EC) II 1 G EEx ia IIC T6, Tamb: -50° to 60° C (-58° to 140° F)
  • CE
  • 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)

Approvals & Certifications

  • ISO 9001

Deadband

  • inHg: 0.4 to 0.6 (kPa: 1.35 to 2.03, bar: 13.5 to 20.3)
  • psi: 0.1 to 0.7 (kPa: 0.69 to 4.83, Mbar: 6.9 to 48.3)

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: Watertight Conduit Fitting, Converts 7/8" Hole to 1/2" NPT Fitting

NPT Connection

  • 1/4" NPT Female

Operating Pressure

  • psi: -14.7 to 180 (kPa: -101.4 to 1,241, bar: -1 to 12.4)

Process Connection Material

  • Brass Bellows with 1/4" NPT (Female) Pressure Connection

Proof Pressure

  • Differential Proof Pressure: psi: 6 to 125 (kPa: 41.37 to 861.8, bar: 0.41 to 8.62)

Repeatability

  • ± 1 % of Full Scale Range

Set Point - Decreasing

  • bar: -1 to 1
  • kPa: -101.4 to 103.4
  • psi: -14.7 to 15

Set Point - Increasing

  • bar: -1 to 1
  • kPa: -101.4 to 103.4
  • psi: -14.7 to 15

Shock

  • Set Point Repeats after 15 G, 10 ms Duration

Storage Temperature

  • -54° to 71° C (-65° to 160° F)

Switch Type

  • One SPDT Snap-Action Switch

System Pressure

  • bar: 12.4
  • kPa: 1,241
  • psi: 180

Vibration

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

Documentation

Data Sheets

Catalogs

View Product Series

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