Potter® Sprinkler System Supervisory Switches, OSYSU Series (OSYSU-2)

Item Number: OSYSU-2
1 1
$125.97
In Stock (10)
Estimated transit time: 2 to 5 Business Days Eligible for Express Shipping

Brand - Potter
  • Monitors open position of OS&Y type gate valves
  • Weight: 2.14 lb
  • NEMA 4X (IP65) and 6P (IP67) rated enclosure
  • Operating Temperature: -40°F to 140°F
  • Contact Configuration: Two Sets of SPDT (Form C)
  • Contact Rating: 10.0 Amps at 125/250 VAC
  • Adjustable length trip rod
  • Two 1/2" conduit knockouts
  • UL, cUL, FM, CE Approved

Description

The Potter OSYSU-2 is an outside screw and yoke (OS&Y) valve supervisory switch designed to monitor the open position of gate valves in fire sprinkler systems. This device provides critical supervision by detecting unauthorized valve closure or tampering, helping to ensure system readiness. It features a robust NEMA 4X (IP65) and 6P (IP67) rated enclosure suitable for indoor or outdoor use, with an operating temperature range of -40°F to 140°F. The OSYSU-2 includes two sets of SPDT (Form C) contacts and mounts on OS&Y valves from 1/2 inch to 12 inches. It is UL, cUL, FM, and CE approved, making it a reliable choice for fire safety applications.

Help Me Connect

Valve Compatibility

  • The Potter OSYSU-2 supervisory switch is designed to mount conveniently on most Outside Screw and Yoke (OS&Y) valves.
  • It is compatible with valves ranging in size from 2 inches to 12 inches (50mm to 300mm).
  • The device can also be mounted on some valves as small as 1/2 inch (12.5mm).

Electrical Connections

  • The switch provides two knockouts for 1/2 inch conduit for electrical wiring.
  • It accommodates wiring up to 12 AWG.
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Additional Details

The Potter OSYSU-2 is an Outside Screw and Yoke (OS&Y) valve supervisory switch designed to monitor the open position of gate valves in fire sprinkler systems. This device helps ensure the system's readiness by detecting tampering and valve closure.

Key Features

  • NEMA 4X (IP65) and NEMA 6P (IP67) Enclosure for robust indoor/outdoor protection. The enclosure is 4X rated for additional corrosion protection; consider OSYSU-2 CRH for mounting hardware.
  • Operates reliably across an operating temperature range of -40°F to 140°F (-40°C to 60°C).
  • Equipped with two sets of SPDT (Form C) contacts for versatile electrical connections.
  • Features visual switch indicators for quick status verification.
  • Includes an adjustable length trip rod and a knurled mounting bracket to prevent slipping, ensuring a secure fit.
  • Fine adjustment feature allows for fast and easy installation and precise calibration.
  • Designed to accommodate up to 12AWG wire for electrical connections.
  • Detects tampering and valve closure with a three-position switch.
  • Provides two knockouts for 1/2 inch conduit entrances.
  • RoHS compliant for environmental safety.
  • The cover is secured by tamper-resistant screws; a special tool is furnished with each device for removal.

WARNING: An uninsulated section of a single conductor should not be looped around the terminal and serve as two separate connections. The wire must be severed to provide supervision of the connection in the event it becomes dislodged. Failure to sever the wire may render the device inoperable, risking severe property damage and loss of life. Do not strip wire beyond 3/8" of length or expose an uninsulated conductor beyond the edge of the terminal block. When using stranded wire, ensure all strands are captured under the clamping plate. Do not drill into the base as this creates metal shavings which can create electrical hazards and damage the device. Drilling voids the warranty.

Specifications

General

  • Product Type: Outside Screw and Yoke Valve Supervisory Switch
  • Model: OSYSU-2
  • Contact Configuration: Two Sets of SPDT (Form C)
  • Weight: 1.6 lbs (0.73 kg)

Electrical

  • Contact Rating (VAC): 10.0 Amps at 125/250 VAC
  • Contact Rating (VDC Resistive): 2.0 Amps at 30 VDC Resistive
  • Contact Rating (Minimum): 10 mAmps at 24 VDC
  • Wire Accommodation: Up to 12AWG
  • Conduit Entrances: Two Knockouts for 1/2" Conduit

Environmental & Enclosure

  • Operating Temperature Range: -40°F to 140°F (-40°C to 60°C)
  • Enclosure Rating: NEMA 4X (IP65), NEMA 6P (IP67)
  • Cover Material: Weather/UV/Flame Resistant High Impact Composite
  • Base Material: Die Cast
  • Base Finish: Black Powder Coat
  • Corrosion Resistance: All parts have corrosion resistant finishes
  • Cover Tamper: Tamper Resistant Screws

Certificates & Approvals

  • UL Listed
  • cUL Listed
  • FM Approved
  • CE Marked
  • NFPA 13
  • NFPA 13D
  • NFPA 13R
  • NFPA 72

FAQs

What is the primary function of the Potter OSYSU-2 supervisory switch?

The OSYSU-2 is used to monitor the open position of Outside Screw and Yoke (OS&Y) type gate valves in fire sprinkler systems. It detects if the valve is closed or tampered with, signaling a potential issue.

What valve sizes is the OSYSU-2 compatible with?

This supervisory switch is compatible with most OS&Y valves ranging in size from 2 inches to 12 inches (50mm to 300mm). It can also mount on some valves as small as 1/2 inch (12.5mm).

What are the contact specifications for the OSYSU-2 model?

The OSYSU-2 includes two sets of SPDT (Form C) contacts. These contacts are rated for 10.0 Amps at 125/250 VAC, 2.0 Amps at 30 VDC Resistive, and a minimum of 10 mAmps at 24 VDC.

What are the environmental ratings for the OSYSU-2 enclosure?

The OSYSU-2 features a durable enclosure rated for NEMA 4X (IP65) and NEMA 6P (IP67). This provides excellent protection against weather, UV, flame, dust, and temporary submersion.

What certifications does the Potter OSYSU-2 hold?

The OSYSU-2 is UL Listed, cUL Listed, FM Approved, and CE Marked, ensuring it meets rigorous safety and performance standards for fire safety applications.