The Resideo 4939SN-WH Serial MPX Contact represents a precision-engineered addressable notification device designed for comprehensive fire detection and alarm monitoring systems. This serial-based contact interface provides critical communication pathways between peripheral detection devices and central fire alarm control panels, enabling rapid and accurate environmental state reporting in commercial and institutional building infrastructures.
Engineered for seamless integration with Resideo’s addressable notification platforms, the 4939SN-WH facilitates sophisticated monitoring of discrete zones, supporting advanced fire detection protocols across complex electrical and mechanical systems. Its robust design ensures reliable performance in challenging environmental conditions, making it ideal for applications requiring consistent, high-fidelity signal transmission in commercial, industrial, and institutional settings.
Key Features
- Fully compatible with Resideo serial multiplexing communication protocols
- Integrated protective cover for enhanced durability and environmental resistance
- Low-impedance signal transmission with minimal voltage drop
- UL 864 and NFPA 72 compliant for life safety critical applications
- Supports addressable panel configurations with precise zone identification
- Designed for seamless installation in commercial fire alarm networks
Specifications
- Operating Voltage: 24VDC nominal
- Current Draw: < 500µA in standby mode
- Temperature Range: 32°F to 120°F (0°C to 49°C)
- Humidity Tolerance: 10-93% non-condensing
Typical installation contexts include HVAC monitoring systems, electrical equipment rooms, data centers, healthcare facilities, and multi-tenant commercial buildings requiring comprehensive fire detection and notification infrastructure. The 4939SN-WH contact provides critical interface capabilities for technicians and facilities managers seeking reliable, standards-compliant fire alarm system components.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 1 lbs |
|---|---|
| Dimensions | 6 × 5 × 2 in |
| Condition | New |
| Manufacturers | Resideo |
| Part Type | Replacement Part |
