The PS120-2 (Type X and Type Y - pressure drop) Potter pressure actuated switch detects a decrease or increase in normal system pressure in automatic fire sprinkler systems.

It monitors water pressure levels at the mains inlet, and has two independent switch adjustments, with a factory setting of 8.3 bar (120psi) normal system pressure.

• The switch marked with LOW operates at a pressure decrease of 10psi (0.7 bar) at 110psi (7.6 bar)
• The switch marked with HIGH operates at a pressure increase of 10psi (0.7 bar) at 130psi (9.0 bar)

Features:

• Two switch model
• Independent adjustment with no tools required
• Two 12mm conduit/cable entrances
• Separate isolated wiring chamber
• Non-corrosive pressure connection
• Non-conductive enclosure