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 feature 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 certified
- ULC
- FM Approved
Documents
FAQ
What valve sizes does the OSY2 fit?
Most outside screw and yoke (OS&Y) gate valves from 1 in. to 12 in. Removing the gate valve bracket also lets it monitor side-bracket-style pressure reducing valves.
What are the contact ratings?
Two SPDT (Form C) switches rated 10.0 A at 125/250 VAC and 2.5 A at 6/12/24 VDC.
When does the switch operate?
It is adjusted to operate within two revolutions of the valve control, or when the stem has moved no more than one-fifth of its travel.
Can it be installed outdoors?
Yes. The enclosure is rated NEMA 3R when installed with the actuator vertical. The switch operates from -40 °F to 120 °F, though UL does not test valve supervisory switches below 32 °F.
