Series AT11910 ATEX/IECEx Approved 1910 Differential Pressure Switch

Brand: Dwyer Instruments, LLC

Our most popular Differential Pressure Switch is now available in a flame-proof ATEX/IECEx approved package in the Series AT11910.

This pressure switch combines advanced design and precision construction to make these switches able to perform many of the tasks of larger, costlier units.

For air and non-combustible compatible gases, the AT11910 Series switches have set points from 0.07 to 20 in w.c. (1.8 to 508 mm). Set point adjustment is easy with range screw located inside the switch enclosure.

Series AT11910 ATEX/IECEx enclosures are available in aluminum enclosures and ideal for low pressure, hazardous area applications.
Features
  • Flame-proof ATEX enclosure protects the device in hazardous areas
  • Compact size and repeatability, provides a high-value switch for many industrial and OEM applications
  • Wide range of models from 0.07 in w.c. to 20 in w.c. can meet exacting OEM specifications for a low pressure switch
  • Range screw protected inside switch enclosure prevents tampering

Specifications

Adjustment Type

  • Field Adjustable

Approvals & Certifications

  • ATEX
  • CE
  • IEC Ex

Deadband, Approximate

  • bar: 0 to 0.03
  • kPa: 0.28 to 3.45
  • psi: 0.04 to 0.50

Electrical Connectors

  • 1/2” NPT Male
  • Screw Typical

Electrical Contacts

  • Gold
  • Standard

Electrical Rating

  • 15 A at 120-480 Vac, 60 Hz Resistive, 1/8 hp at 125 Vac, 1/4 hp at 250 Vac, 60 Hz

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • IP65
  • IP66

NPT Connection

  • 1/8” NPT Female

Operating Temperature

  • -34° to 82° C (-30° to 180° F)

Process Connection Material

  • 316 Stainless Steel
  • Brass

Set Point - Decreasing

  • Inches WC: 0.07 to 20

Set Point - Increasing

  • Inches WC: 0.07 to 20

Switch Type

  • SPDT

System Pressure

  • Inches WC: 45

  • Hazardous area low pressure applications
  • Air conditioning refrigeration coil icing detection; defrost cycle initiation
  • Clogged filter detection
  • Variable air volume controller
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