Tamper Switch for OS&Y Valves features a compact, right-angle design that installs easily to most 1 in. (25.4 mm) to 12 in. (305 mm) Outside Screw and Yoke (OS&Y) valves. With the bracket removed, Safe Signal's OSY2 Supervisory Switch also installs to side-bracket-style pressure reducing valves. Suitable for service in accordance with NFPA 13, NFPA 13D, NFPA 13R, and NFPA 72 when properly installed.
This Tamper Switch for OS&Y Valves prevents tampering and unwanted closure by activating a nearby alarm or fire alarm control panel when the valve reaches 1/5 of its travel distance or two full turns. Safe Signal's OSY2 Supervisory Switch simultaneously activates connected signaling and monitoring devices with 100 percent synchronization.
Featuring weatherproof die-cast metal housing and approvals from UL, ULC, FM, MEA, and California Office of the State Fire Marshal, this rugged Tamper Switch for OS&Y Valves is designed for outdoor use. Safe Signal's OSY2 Supervisory Switch installs easily using a single-side conduit entrance and adjustable shaft that eliminates the need for right-angle fittings or cutting the shaft.
Each Tamper Switch for OS&Y Valves includes tamper-resistant screws, a security wrench, and removable 1/4 in. H x 6 3/4 in. W x 1 in. D (5.7 cm x 17.1 cm x 2.5 cm) mounting bracket.
|Physical Specifications||Operating Specifications|
|Shipping Weight||2.8 lbs.(1.3 kg)|
|Maximum Stern Extension||2 3/8 in. (6.7cm)|
|Contact Ratings||Two sets of SPDT (Form C). 10.0 A @ 125/250VAC; 2.5 @ 6/12/24VDC.|
|Service use||Automatic Sprinkler: NFPA 13. One or Two Family Dwelling: NFPA 13D. Residential Occupancies up to 4 stories: NFPA 13R. National Fire Alarm code: NFPA 72.|
|US Patent Nos||5,478,038; 5,213,205|