Dungs GW 3 A4 Gas Pressure Switch, designed for low-pressure gas monitoring in combustion systems:

 Technical Overview

• Model: GW 3 A4
• Type: Gas pressure switch
• Switching Pressure Range: 0.5 to 3 mbar (adjustable)
• Max Operating Pressure: 500 mbar
• Switch Type: SPDT (Single Pole Double Throw)
• Reset Type: Automatic
• Electrical Rating:
  • 6A @ 250 VAC (resistive load)
  • 3A FLA
• Protection Class: IP54
• Connection: G 1/4 threaded ports
• Mounting Position: Vertical or horizontal (not upside down)