Description
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
