Kidde KI-HFD

The Kidde KI-HFD is an intelligent addressable fixed-temperature heat detector for fire alarm systems. It provides reliable detection of slow-burning fires through continuous temperature monitoring via a precision thermistor sensor. When air temperature at the detector location exceeds 135°F, the detector analyzes this data and triggers an alarm signal to the control panel.

Key Features

• Fixed-temperature detection at 135°F (57.2°C) for slow-building fires
• Intelligent analog addressable device compatible with Kidde addressable systems
• High-impact polymer construction with integral LED indicators
• Continuous self-diagnostics with advanced thermistor technology
• Compatible with standard Kidde detector bases (KI-SB, KI-SB4, KI-RB, KI-RB4, KI-IB, KI-IB4)

Technical Specifications

• Alarm Point: 135°F (57.2°C) fixed-temperature only, no rate-of-rise
• Operating Temperature Range: 32°F to 120°F (0°C to 49°C)
• Mounting Compatibility: 1-gang boxes, 3.5-inch and 4-inch octagonal boxes, 4-inch square boxes 1.5 inches deep
• Power: Powered via analog SLC signaling line circuit
• Response Time: Automatic device mapping supported on compatible control panels

Certifications

• UL Listed intelligent heat detector
• NFPA 72 compliant thermal detection technology