Indoor Explosion Proof Supervisory Switch for OS&Y Valves Explosion valve supervisory switches shall be furnished and installed on all OS&Y type valves located in areas classified as hazardous that can be used to shut off the flow of water to any portion of the fire sprinkler system, where indicated on the drawings and plans and as required by applicable local and national codes and standards. The switch enclosure shall be UL Listed and CSA Certified and NEMA 1, 7 and 9 rated for hazardous locations classified as Class I, Division 1 and 2, groups C and D and Class II, Division 1 and 2, groups E, F and G and capable of being mounted in any position indoors. The enclosure shall contain one ½” NPT threaded opening for conduit connection. The mounting bracket of the device shall be knurled to prevent slippage on the valve yoke. The device shall contain an adjustable length trip rod, the trip rod shall be held captive by a set screw accessible without removal of the cover. The switch contacts shall be rated at 15.0A, 125/250VAC and 0.5A, 125VDC. Indoor Explosion Proof OS&Y Valve Supervisory Switch shall be model OSYSU-EX manufactured by Potter Electric Signal Company LLC.
Indoor Explosion Proof Supervisory Switch for OS&Y Valves Explosion valve supervisory switches shall be furnished and installed on all OS&Y type valves located in areas classified as hazardous that can be used to shut off the flow of water to any portion of the fire sprinkler system, where indicated on the drawings and plans and as required by applicable local and national codes and standards. The switch enclosure shall be UL Listed and CSA Certified and NEMA 1, 7 and 9 rated for hazardous locations classified as Class I, Division 1 and 2, groups C and D and Class II, Division 1 and 2, groups E, F and G and capable of being mounted in any position indoors. The enclosure shall contain one ½” NPT threaded opening for conduit connection. The mounting bracket of the device shall be knurled to prevent slippage on the valve yoke. The device shall contain an adjustable length trip rod, the trip rod shall be held captive by a set screw accessible without removal of the cover. The switch contacts shall be rated at 15.0A, 125/250VAC and 0.5A, 125VDC. Indoor Explosion Proof OS&Y Valve Supervisory Switch shall be model OSYSU-EX manufactured by Potter Electric Signal Company LLC.
OSYSU-EX_specification.docx