Potter PS120-2


Supervisory Pressure Switch

Availability: Please Call for Lead Time

  • Factory New
Brand: Potter FireAlarm.com Part #: 100568 Categories: , Manufacturer Part #: PS120-2


The Potter PS120 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: Wet pipe systems with excess pressure, pressure tanks, air supplies, water supplies, and monitoring pressure regulators in standpipes. The PS120 switch is factory set for 120 psi (8,3 bar) normal system pressure. The switch marked with the word LOW is set to operate at a pressure decrease of 10 psi (0,7 bar) at 110 psi (7,6 bar). The switch marked with the word HIGH is set to operate at a pressure increase of 10 psi (0,7 bar) at 130 psi (9 bar). See section heading Adjustments and Testing if other than factory set point is required.


Weight 9.00 lbs
Dimensions 3.78 × 3.20 × 4.22 in



  • One or two switch models available
  • Independent switch adjustment on two switch models, no tools needed
  • Two 1/2” conduit/cable entrances
  • Separate isolated wiring chambers
  • Non-corrosive pressure connection
  • VdS version available
  • Non-Conductive enclosure


Supervisory Pressure Switch; PS120 Series
Potter – Data Sheet