PS-40-EX | Potter Explosion-Proof Pressure Supervisory Switch for Fire Sprinkler SystemsDescription The Potter PS 40 EX Explosion Proof Pressure Supervisory Switch is a rugged device designed to detect abnormal pressure conditions in fire sprinkler systems installed in hazardous locations. Built with a durable cast aluminum enclosure, this model (part number PS 40 EX) is UL, FM, and CSFM approved for use in Class I, II, and III, Division 1 areas. It provides reliable performance under harsh environmental conditions and ensures compliance
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PS-40-EX | Potter Explosion-Proof Pressure Supervisory Switch for Fire Sprinkler Systems