3825 Ohio Avenue • St. Charles, IL 60174

Phone: 800-SENSOR2 • Fax: 630-377-6495

©2006 System Sensor.

Product specifications subject to change without notice. Visit systemsensor.com for

current product information, including the latest version of this data sheet.

A05-0196-009 • 11/06 • #1676

Electrical Connections for OSY2

Ordering Information

Part No.

Description

OSY2

Outside Screw and Yoke valve supervisory switch

OSY2A

Outside Screw and Yoke valve supervisory switch (ULC model)

Accessories

OSYRK

Replacement hardware kit (wrenches, screw pack and J–hooks)

WFDW

Replacement tamper proof wrench for cover

546-7000

Cover tamper switch kit

HEXW

Replacement hex wrench

S07-66-XX

Tamper screws for cover

OSY2 Specifications

Architectural/Engineering Specifications

Model shall be model number OSY2 supervisory switch as manufactured by System Sensor. OSY2 shall be installed on each valve as designated on the drawings

and/or as specified herein. Switches shall be mounted so as not to interfere with the normal operation of the valve and shall be adjusted to operate within

two revolutions of the valve control or when the stem has moved no more than one-fifth of the distance from its normal position. The mechanism shall be

contained in a weatherproof die cast metal housing, which shall provide a side entrance for ½˝ conduit and incorporate the necessary facilities for attachment

to the valve. A grounding provision is provided. The switch assembly shall include two switches each with a rated capacity of 10 Amp @ 125/250VAC and 2.5

Amp @ 24VDC. The cover shall contain tamper-resistant screws for which a security wrench will be provided with each switch. The OSY2 shall be Underwriters

Laboratories listed for indoor or outdoor use. The OSY2 shall be Factory Mutual, CSFM, and MEA approved.

Physical Specifications

Operating Specifications

Overall Switch

Dimensions

5¾˝H x 3½˝W x 3¼˝D

(14.6cm x 8.9cm x 8.2cm)

Contact Ratings

Two sets of SPDT (Form C)

10.0 A @ 125/250VAC; 2.5 @ 6/12/24VDC

Shipping Weight

2.8 lbs. (1.3 kg)

Enclosure Rating

UL indoor/outdoor

NEMA 3R when mounted with the actuator vertical

Operating Temperature

Range

32ºF to 120°F ( 0ºC to 49ºC)

NOTE: The OSY2 will operate from –40ºF to 120ºF

(–40ºC to 49ºC); however UL does not test control

valve supervisory switches below 32ºF (0ºC).

Cover Tamper Switch

Standard with ULC model

Optional for UL model, part no. 546-7000

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

Bracket Span

¼˝H x 6¾˝W x 1˝D (5.7cm x 17.1cm x 2.5cm)

Warranty

3 years

Conduit Entrances

One single side open for ½˝ conduit

U.S. Patent Nos.

5,478,038; 5,213,205

OSY2 Mounting

The following are examples of acceptable

mounting positions:

The following mounting position is not acceptable:

Actuator Vertical (Down)

Actuator Horizontal

Actuator Vertical

(Pointing Up)

Top View

Switch 1

CO

M

CO

M

AB

B

A

Switch 2

CONTACT RATINGS

125/250 VAC

24 VDC

10 AMPS

2.5 AMPS

Sup. Switch

BB

COM

COM

Sup. Switch

BB

COM

COM

Typical FACP Connection

to nonsilenceable initiating

zone of listed FACP

end-of-line resistor

B

COM

to power source

compatible

with bell

local

bell

Typical Local Bell Connection

Break wire as shown for supervision

of connection. DO NOT allow stripped

wire leads to extend beyond switch

housing. DO NOT loop wires.

Strip Gauge