System Sensor OSY2 Supervisory Switch

The Fire Alarm Supplier Verified independent store

→

System Sensor OSY2 Supervisory Switch OSY2 supervisory switches are used to monitor the open position of an outside screw and yoke-type gate valve. OSY2 supervisory switches featur e a user-friendly mounting bracket and adjustable shaft to permit mounting to most outside screw and yoke valves, ranging in size from 1 to 12 inches. Their right-angle design and wide bracket span provide maximum clearance for valve components to accommodate troublesome valves. Removing the OSY2’s gate valve bracket allows the unit to monitor side-bracket-style pressure-reducing valves. The OSY2 supervisory switch is equipped with tamper-resistant cover screws to prevent unauthorized entry. Two sets of SPDT (Form C) synchronized switches are enclosed in a durable terminal block to assure reliable performance. Installation is made easier with the OSY2’s single-side conduit entrance. Right-angle fittings are not required by providing a direct conduit pathway to the electrical source. Installation is further simplified by the OSY2’s adjustable length actuator, which eliminates the need for cutting the shaft. OSY2 supervisory switches consist of a rugged housing for indoor and outdoor use. When installed with the actuator in the vertical position, the OSY2 is NEMA 3R rated per UL.Features NEMA 3R enclosure User-friendly mounting bracket fits newer valve yokes Single-side conduit entry does not require right-angle fittings Adjustable length actuator eliminates the need for cutting the shaft Accommodates up to 12 AWG wire Three-position switch monitors vandal and valve close signals Two SPDT contacts are enclosed in a durable terminal block for added strength 100% synchronization activates both the alarm panel and local bell simultaneously Certifications UL Listed ULC FM Approved Show more