The System Sensor 4WTA-B represents a robust photoelectric smoke and heat detector designed for comprehensive fire detection in commercial and institutional environments. This multi-criteria detector combines advanced photoelectric sensing technology with heat detection capabilities, providing enhanced early warning performance across diverse building applications. Engineered for seamless integration with addressable fire alarm control panels, the 4WTA-B delivers reliable smoke detection while minimizing nuisance alarms in complex environmental conditions.
Ideal for deployment in office buildings, educational facilities, healthcare complexes, and industrial settings, this detector offers superior sensitivity to slow-burning, smoldering fires. The photoelectric sensing mechanism utilizes a light-scattering chamber that effectively identifies visible smoke particles, while the integrated heat sensor provides additional verification and rapid response to temperature-based fire conditions.
Key Features
- Dual-criteria detection with photoelectric smoke and fixed-temperature heat sensing
- Compatible with addressable fire alarm panels and conventional notification circuits
- Low-profile design with aesthetic white base for seamless architectural integration
- Operating temperature range from 32°F to 100°F (0°C to 38°C)
- Built-in LED indicator for visual alarm and maintenance status
- UL Listed and meets NFPA 72 commercial fire detection requirements
Technical Specifications
- Operating Voltage: 15-32 VDC
- Standby Current: Less than 250 µA
- Alarm Current: Approximately 6 mA
- Dimensions: 6.1″ diameter, 2.2″ height
- Weight: Approximately 5.5 oz
The System Sensor 4WTA-B is certified to UL 268 for smoke detection, UL 521 for heat detection, and UL 464 for audible signaling. Its advanced design supports installation in HVAC-intensive environments, electrical rooms, data centers, and other challenging commercial spaces where early, accurate fire detection is critical. The detector’s intelligent sensing algorithm minimizes false alarms while providing rapid, reliable fire event identification.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.65 lbs |
|---|---|
| Dimensions | 6 × 6 × 3 in |
| Condition | New |
| Manufacturers | System Sensor |
| Part Type | Photoelectric Smoke Detector |
