Potter WFSR-F Pressure Activated Waterflow Alarm Switch with Retard

The Model WFSR-F is a pressure operated switch with an adjustable, instantly recycling pneumatic retard to prevent false alarms due to water pressure variation. The WFSR-F is connected into the alarm port of a wet sprinkler system alarm check valve.

Main Features

• Dimensions: 5 9/16"H x 3 1/2"W x 5 7/8"D (14,1cm H x 8,9cm W x 14,9cm D)
• Weight: 1.5 lbs. (3,3 kg.)
• Enclosure: Cover - Die-cast with textured red powdercoat finish. Base - Die-cast aluminum
• Pressure Connection: 1/2" Male NPT
• Pressure Adjustments: Factory adjusted to operate between. 5 and 8 PSI (0.35 and 0,55 BAR) on rising pressure
• Maximum system pressure: 175 PSI (12,1 BAR)
• Contact Ratings: Two Sets of SPDT (Form C). 15.0 Amps at 125/250VAC. 2.0 Amps at 30VDC Resistive
• Conduit Entrances: Two knockouts provided for 1/2" conduit
• Environmental Specifications: 40°F to 120°F (4,5°C to 49°C). NEMA 4 Enclosure - when used with proper conduit fittings