Model A2G-40

Differential Pressure Switches Type A2G-40, air2guide

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  • Ideal for use with air and other non-combustible gases
  • Monitoring of air filters, fans, industrial cold air circuits, air flow in ventilation ducts and the control of air and fire shutters
  • Overpressure monitoring in cleanrooms and laboratories

Special Features

  • Compact size
  • Easy installation and mounting
  • Robust housing and functional design
  • Standard accessories included
  • Very reliable, > 1 mio. switching cycles


In accordance with the European low-voltage directive 73/23/EEC

Reference table on data sheet for Dead Band, Switching Increments and Measuring Ranges

Maximum pressure
200 InWC

Operating temperature
Ambient: -40 °F ... +185 °F
Medium: -20 °F ... +160 °F

Ingress protection
NEMA 3 (IP 54 per EN 60 529 / lEC 529)

5.2 ounces

Process connection
Hose barb nozzles (ABS) for 3/16" and ¼" hose ID


Plastic (ABS)

Window Cover


Standard accessories
2 mounting screws

Electrical connection
Screw terminals
PG-gland M16

Micro Switch
One (1) SPDT (single pole double throw)


  • 2 duct connections
  • 6 foot PVC hose, 3/16" hose ID
Differential Pressure Switches Type A2G-40, air2guide
  • Differential Pressure Switches Type A2G-40, air2guideMeasuring instruments for ventilation and air-conditioning
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