The Hochiki DSC-EA Rate of Rise Heat Detector represents a critical component in commercial fire detection systems, engineered to provide rapid thermal event monitoring in challenging environmental conditions. Designed for precision and reliability, this heat detector utilizes advanced thermal sensing technology to detect sudden temperature increases in protected spaces, enabling early fire detection before visible flames emerge.
Ideal for commercial and industrial applications including manufacturing facilities, warehouses, mechanical rooms, and HVAC equipment spaces, the DSC-EA offers robust performance in environments where smoke detectors might generate nuisance alarms. Its rate-of-rise mechanism triggers an alarm when temperature increases rapidly, typically 15°F per minute, complementing fixed-temperature detection strategies mandated by NFPA 72 fire alarm standards.
Key Features
- Dual-criterion detection with rate-of-rise and fixed-temperature (135°F) thermal sensing
- Compatible with addressable fire alarm control panels using conventional and analog-addressable configurations
- Low-profile design minimizes visual interference in architectural spaces
- UL 268 and UL 464 listed for comprehensive safety compliance
- Enhanced electrical noise immunity for reliable performance in industrial environments
- Field-replaceable base supports quick maintenance and retrofit installations
Technical Specifications
- Operating Voltage: 15-32 VDC
- Standby Current: < 200 µA
- Alarm Current: 20 mA typical
- Operating Temperature Range: 32°F to 100°F
- Humidity Tolerance: 10-93% non-condensing
- Dimensions: 6.0″ diameter, 2.0″ height
Certified for use in commercial and light industrial applications, the Hochiki DSC-EA heat detector provides mission-critical fire detection with exceptional reliability. Its advanced thermal sensing algorithms ensure rapid response to developing fire conditions while minimizing false alarm potential.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 1.6 lbs |
|---|---|
| Dimensions | 3 × 4 × 4 in |
| Condition | New |
| Manufacturers | Hochiki |
| Part Type | Heat Detector |







