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DUNGS Pressure Switches

Brand: Fireye, Inc

For use on gas and air applications and available via the Fireye distribution channels.

DUNGS pressure switches complement Fireye’s range of flame safeguards, combustion efficiency and burner controls for a wide range of industrial and commercial applications.
  • GAO-A4… SPDT pressure switch requires no auxiliary power. The GAO-A4… is suitable for making and/or breaking a
    circuit when the set point is exceeded or undershot. A tripped switch is indicated by a neon light after set point is exceeded
    or undershot. Automatic reset when pressure returns below or above set point.
  • GMH-A4… SPDT pressure switch requires no auxiliary power. The GMH-A4… is suitable for making and/or breaking a
    circuit when the set point is exceeded. A tripped switch is indicated by a neon light after set point is exceeded.
    Manual reset is required to reset the switch.
  • GML-A4… SPDT pressure switch requires no auxiliary power. The GML-A4… is suitable for making and/or breaking a
    circuit when the set point is undershot. A tripped switch is indicated by a neon light after set point is undershot.
    Manual reset is required to reset the switch.

Specifications

Brand

Max Operating Pressure

  • MOP = 7 PSI (500 mbar)
  • -8 version: 14 PSI (1000 mbar)

Electrical Connection

  • Screw Terminals via 1/2” NPT Conduit Connection

Silver-Contact Rating

  • 10 A resistive @ 120 VAC
  • 3 A inductive @ 120 VAC
  • 1 A @ 12 - 48 VDC

Gold-Contact Rating

  • max 20 mA @ 24 VDC
  • Ideal for Low Voltage & Current Applications

Enclosure

  • NEMA Type 4

Ambient / Fluid Temperature

  • Versions -2, -3, -4, -5 & -6: -40°F to +140°F; (-40°C to +60°C)
  • Versions -8: -20°F to +140°F; (-30°C to +60°C)

Max Body Pressure

  • 15 PSI (1033 mbar)

Materials

  • Housing: Aluminium
  • Switch: Polycarbonate
  • Diaphragm: NBR-based rubber
  • Switching Contact: Silver or Gold

Electrical Ratings

  • AC Eff.:  min. 24 V max. 240 V
  • DC:   min. 24 V max. 48 V

Indication Light

  • 0.30 W energy consumption

Setting Tolerance

  • ±15% switching point deviation referred to set point. Adjusted as pressure rises or as pressure falls, vertical diaphragm position

Vent Limiter

  • Incorporates a vent limiter as per UL 353 and limits the escape of gas less than 1.0 CFH of natural gas at 7 PSI if internal switch diaphragm ruptures
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