The POTTER (OSYSU-2-CRH) Osy Supervisory Switch represents a precision-engineered solution for comprehensive fire alarm system monitoring in challenging environmental conditions. Designed with advanced corrosion-resistant materials, this supervisory switch provides reliable performance in industrial, marine, and coastal commercial applications where moisture, salt exposure, and harsh chemical environments demand superior durability.
Engineered for seamless integration with addressable and conventional fire alarm control panels, the OSYSU-2-CRH delivers critical supervisory signal transmission with exceptional reliability. Its robust construction ensures consistent mechanical and electrical performance across diverse commercial and industrial installation scenarios, from petrochemical facilities to offshore platforms and coastal infrastructure.
Key Features
- Corrosion-resistant design with marine-grade material composition for extended service life in aggressive environments
- Compatible with most major fire alarm control panel manufacturers’ addressable and conventional systems
- NFPA 72 compliant supervisory switch with precision microswitch mechanism
- Field-proven reliability with minimal maintenance requirements
- Low-resistance electrical contacts rated for multiple switching cycles
- Compact form factor enabling flexible mounting in constrained installation spaces
Technical Specifications
- Switch Type: Single Pole, Double Throw (SPDT)
- Contact Rating: 5A @ 125/250 VAC
- Operating Temperature Range: -40°F to 185°F
- Maximum Switching Cycles: 100,000 operations
- Mechanical Endurance: 1,000,000 mechanical operations
Compliance and Listings
- UL Listed
- NFPA 72 National Fire Alarm and Signaling Code compliant
- Suitable for use in HVAC, elevator, and other critical monitoring applications
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 2.14 lbs |
|---|---|
| Dimensions | 6.2 × 3.1 × 9 in |
| Condition | New |
| Manufacturers | Life Safety |
| Part Type | Pull Station |






