The Tyco 631H-F (516.600.033) is a conventional fixed-temperature heat detector from Tyco’s Series 600, designed for marine fire detection systems. It uses a fixed resistor and thermistor arrangement and operates when the static temperature reaches the detector’s high-temperature threshold, making it suitable for areas where smoke detectors are unsuitable.
Key Features
- 90°C fixed-temperature fire detection.
- Dual sensing arrangement using a fixed resistor and thermistor.
- Designed for rapid response when the absolute temperature reaches the alarm threshold.
- Integral and remote alarm LED capability.
- Low operating current and 10.5–33 VDC supply range.
- Compatible with Tyco Series 600 conventional detector bases.
- Marine-approved for shipboard fire detection installations.
Typical Applications
- Marine Fire Detection & Alarm Systems
- Engine rooms and boiler rooms
- Galleys and kitchens
- Machinery and high-temperature spaces
- Areas with smoke, dust, steam or fumes where smoke detectors may cause unwanted alarms
- Shipboard and offshore fire detection systems
- Replacement of existing 631H-F / 516.600.033 detectors.
