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Resideo PA404A1025/U

Resideo PA404A1025/UPressure Controller PA404A 2 Wire SPST 3-5 Pounds per Square Inch

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Product Overview


The PA404 is a series 40 (2-wire, SPST) pressure controller for use in 24, 120, 240 or 277 volt control circuits or in self powered (millivoltage) applications.

  • The PA404A is a pressure actuated high limit, safety control for steam heating boilers, it breaks an electrical circuit to shut down the burner if steam pressure rises above a safe level
  • The PA404B is used with suspension-type unit heaters to make the fan circuit when a pressure rise indicates the presence of steam
  • Each model contains an SPST microns switch snap acting switch
  • Sensitive pressure actuated diaphragm expands or contracts with pressure variations, moving a lever mechanism which operates the snap switch
  • A screw on top of the case allows set point adjustments without removing the cover
  • Differential is adjusted by means of a dial located inside the case

Product Details

BrandResideo
Product Type2 Wire SPST
Pressure3-5PSI
Length2-1/4IN
Width3-3/8IN
Height4-15/32IN

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