Dungs Differential Pressure Switch for Air, Flue and Exhaust Gases AA-C2…
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Dungs Differential Pressure Switch for Air, Flue and Exhaust Gases AA-C2…

AA-C2… differential pressure switches are field adjustable, compact pressure switches for automatic burner controls.

AA-C2… differential pressure switches are suitable for making and/or breaking a circuit when the medium pressure changes relative to the set point.  The set point can be set in the field by an adjustable dial with an integrated scale.

Application:  Differential pressure monitoring in firing, ventilation and air-conditioning systems.  The AA-C2… can be used as a pressure, vacuum or differential pressure switch for air and non-aggressive gases.  Not suitable for natural gas, propane, butane and other combustible gases.

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Additional information

Spec 1

AA-C2… SPDT differential pressure switch in pressure and vacuum ranges. The differential pressure acts via the diaphragm against the force of the setting spring on the micro-switch. The pressure switch operates without any auxiliary power.

Spec 2

Max. Operating Pressure: 1 PSI (710 mbar)

Spec 3

Enclosure Type: NEMA Type 4

Spec 4

Electrical Connection: Screw terminals via 1/2" NPT conduit connection

240180_Air_Pressure_Switch_AA_C2.pdf