
Potter Pressure Switch
PS Series
The Potter PS Series pressure switches are high-performance devices engineered for the supervision and alarm signaling of automatic fire sprinkler systems. Each unit is housed in a rugged die-cast metal enclosure with a rain-lip and a textured red powder coat finish, specifically designed to withstand demanding environments. With a maximum system pressure rating of 300 PSI (20.68 BAR), these switches are suitable for high-rise and industrial applications. The series offers versatility through specific models: the PS10 detects waterflow by sensing pressure increases, the PS40 monitors air or water pressure for supervisory conditions, and the PS10-EX provides a specialized explosion-proof solution for hazardous locations. All models are UL Listed and FM Approved, ensuring they meet the highest global safety standards for fire protection monitoring.
Feature | Detail |
Model Range | PS10 (Low Pressure), PS40 (High Pressure), PS10-EX (Explosion Proof) |
Maximum System Pressure | 300 PSI (20.68 BAR) |
Pressure Connection | Nylon 1/2″ NPT Male |
Enclosure Material | Die-cast with textured red powder coat finish |
Environmental Rating | NEMA 4/IP55 (Standard) / NEMA 4,9/IP66 (Explosion Proof) |
Certifications | UL Listed and FM Approved |


