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CD1H & CD2H Series Diaphragm Switch

Brand: Barksdale

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.
Features
  • High reliability
  • Extremely versatile
  • Calibrated dial for easy setpoint adjustment
  • Ideal for pressure or vacuum

Specifications

Brand

Accuracy

  • ± 0.5 % of Adjustable Range

Adjustment Type

  • Pressure & Vacuum: Screw Counter-Clockwise & Screw Clockwise

Approvals & Certifications

  • CE
  • CSA
  • UL

Conduit Connection

  • 3/4" NPT

Deadband, Approximate

  • psi: 0.07 to 6 (kPa: 0.5 to 41.4, bar: 0 to 0.4) - Pressure Adjustabale Range

Deadband, Approximate - Vacuum

  • Inch Hg: 0.14 - 0.8

Diaphragm Material

  • 17-7 pH Stainless Steel

Electrical Connectors

  • 16 AWG
  • 18" Free Wire Leads

Electrical Contacts

  • Normally Closed
  • Normally Open

Electrical Rating

  • 0.05 A at 250 Vdc
  • 0.1 A at 125 Vdc
  • 0.25 A at 250 Vdc
  • 0.5 A at 125 Vdc
  • 1 A at 125 Vac
  • 1 A at 24 Vdc
  • 10 A at 125/250 Vac
  • 10 A at 125/250/480 Vac
  • 2 A at 600 Vac
  • 3 A at 480 Vac
  • 5 A at 125/250 Vac

Enclosure, Body Material

  • Anodized Aluminum

Environmental Protection

  • IP66
  • NEMA 4
  • NEMA 4X

NPT Connection

  • 1/2" NPT Female
  • 1/4" NPT Female

Operating Temperature

  • -40° to 74° C (-40° to 165° F)

Process Connection Material

  • AISI 304 Stainless Steel

Proof Pressure

  • psi: 3 to 300 (kPa: 20.7 to 2,068, bar: 0.2 to 20.4) - Pressure Adjustable Range

Proof Pressure - Vacuum

  • inHg: 6 to 30 - Vacuum Pressure Range

Set Point - Decreasing

  • bar: 0.02 to 9.8
  • inHg: 0.06 to 29.2 - Pressure Adjustable Range
  • kPa: 2.06 to 992.8
  • psi: 0.3 to 144

Set Point - Increasing

  • bar: 0.01 to 10.2
  • inHg: 0.34 to 30 - Pressure Adjustable Range
  • kPa: 1.24 to 1,034
  • psi: 0.18 to 150

Storage Temperature

  • -54° to 93° C (-65° to 200° F)

Switch Type

  • Hermetically Sealed
  • Single Pole Double Throw (SPDT) Single or Dual Circuit

System Pressure

  • bar: 0 to 20.68
  • kPa: 0 to 2,068
  • psi: 0 to 300

  • Air Proving in HVAC Systems
  • Engine Monitoring
  • Factory Automation
  • Food & Beverage
  • Medical
  • Water Equipment
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