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1340404 Potter PS40-2 Pressure Switch with Two Sets SPDT Contacts

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$144.42

$ 65 .99 $65.99

In Stock

About this item

  • Two knockouts provided for 1/2" conduit
  • Individual switch compartments and ground screws suitable for dissimilar voltages
  • Cover: Die-cast with textured red powdercoat finish, single cover screw and rain lip,Base: Die-cast
  • Pressure Connection: Nylon 1/2" NPT Male
  • Dimensions: 3.78" W x 3.20" D x 4.22" H


The Potter PS40 Series Supervisory Pressure Actuated Switches are designed primarily to detect an increase and/or decrease from normal system pressure in automatic fire sprinkler systems. Typical applications are: Dry pipe systems, pre-action air/nitrogen supervision, pressure tanks, air supplies, and water supplies. The PS40 switch is factory set for 40 PSI (2,8 BAR) normal system pressure. The switch marked with the word LOW is set to operate at a pressure decrease of 10 PSI (,7 BAR) at 30 PSI (2,1 BAR). The switch marked with the word HIGH is set to operate at a pressure increase of 10 PSI (,7 BAR) at 50 PSI (3,5 BAR).