System Sensor's OSY2 Supervisory Switch is used to monitor the open position of an Outside Screw and Yok (OS&Y) type gate valve. Featuring robust construction, the OSY2 is designed for indoor or outdoor use. It can be used on nearly any OS&Y valve ranging from 1" to 12" (1 inch to 12 inch) in size. Installation is simple with its single side conduit entrance. No right angle fittings are necessary.
Comes standard with tamper resistant cover screws to prevent unauthorized entry, mounting bracket, and detailed instructions.
This Tamper Switch works with any brand of OS&Y valve!
Not what you're looking for? See our full selection of Fire Protection System Tamper Switches.
Tamper Switch OSY2 Specifications:
Overall Switch Dimensions
5 3/4" H x 3 1/2" W x 3 1/4" D(14.6 cm x 8.9 cm x 8.2 cm)
Two sets of SPDT (Form C)10.0 A @ 125/250VAC; 2.5 @ 6/12/24VDC
2.8 lbs (1.3 kg)
UL indoor/outdoorNEMA 3R when mounted with the actuator vertical
Operating Temp Range
32ï¾°F to 120ï¾°F (0ï¾°C to 49ï¾°C)Note: The OSY2 will operate from -40ï¾°F to 120ï¾°F (-40ï¾°C to 49ï¾°C); however, UL does not test control valve supervisory switches below 32ï¾°F.
Cover Tamper Switch
Maximum Stern Extension
2 3/8" (6.7cm)
Automatic Sprinkler: NFPA 13One or Two Family Dwelling: NFPA 13DResidential Occupancies up to 4 stories: NFPA 13RNational Fire Alarm code: NFPA 72
1/4"H x 6 3/4"W x 1"D(5.7cm x 17.1cm x 2.5cm)
One single side open for 1/2" conduit
US Patent Nos
More information about the OSY2 Tamper Switch: