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AA-A4-4-3

Special Price $92.60 Regular Price $115.76
Item Code: 267143

AA-A4-4-3 (267143)

  • 0.4” W.C. to 4” W.C.
  • SPDT Sw 5A @ 120 Vac 3A FLA
  • NEMA Type 4
  • Threaded Connection
  • Formerly: 254-393A

Description

the DUNGS AA...A2/A4 differential pressure switches are field adjustable, compact pressure

switches for automatic gas burning equipment controls. Available with hose or NPT threaded

connections.

AA...A2/A4 differential pressure switches are suitable for making and/or breaking a circuit

when the medium pressure changes relative to the set point.

Application

Differential pressure monitoring in firing, ventilation and air-conditioning systems. The AA...

A2/A4 can be used as a pressure, vacuum or differential pressure switch for air and nonaggressive

gases. Not suitable for natural gas, propane, butane and other combustible gases.

Specifications

Max. Operating Pressure

AA…A2/A4 7 PSI (500 mbar)

Electrical Ratings

Silver (Ag) Contact ratings

AC 5A resistive @ 120 Vac

AC 3A inductive @ 120 Vac

DC min. 20 mA @ 24 Vdc

DC max. 1 A @ 48 Vdc

Enclosure Rating

NEMA Type 4

Ambient Temperature Rating

-40 F to +140 F (-40 C to +60 C)

 Air pressure switch for differential, vacuum or positive pressure; with automatic reset; AA-A2-4 features 0.16“ (4 mm) diameter hose connections; AA-A2-6 features 1/4” NPT positive connection and 1/8” NPT negative connection and includes a test button in the lower housing; both models feature field adjustable setpoint; AA-A4-4 models feature 1/4” NPT positive connection and 1/8” NPT negative connection with Die Cast Aluminum Base; 1/4" x 1/32" (6.3 x 0.8 mm) flat male terminals.