Kidde Fenwal 12-F28021-005-0T Heat Detector, Vertical Mount, Normally Open, 360°

Protect critical spaces with a purpose-built, high-temperature solution: the Kidde Fenwal 12-F28021-005-0T heat detector is a ceiling-mounted, vertical Detect-A-Fire device engineered for reliable activation at 360°F. Designed for industrial, manufacturing, data center and hazardous-area installations, this heat detector provides precise, rate-compensated sensing to reduce nuisance trips while ensuring timely notification when temperatures rapidly climb.

The unit’s normally open contact closes on temperature rise, offering a clear, easy-to-monitor signal for fire alarm panels and security/monitoring systems. Contacts are rated 5A at 125VAC and 0.5A at 125VDC, minimizing the need for additional relays for many control circuits. Installed via a 1/2-14 NPT ceiling mount with 6" leads, the detector simplifies retrofit and new-construction wiring.

Backed by the proven Fenwal Detect-A-Fire design and built for demanding environments — including explosion-proof Class I/II locations — this device integrates smoothly into fire protection and surveillance strategies. Ideal for customers seeking dependable, industry-grade heat detection for security, monitoring and fire suppression systems. Contact us for pricing or add this Kidde Fenwal heat detector to your specification list today.

• Rapid, reliable high-temperature detection at a 360°F set point to protect equipment and facilities in industrial and hazardous environments
• Precise activation with rate-compensated Detect-A-Fire design for consistent, false-alarm-resistant performance
• Normally open contact output (closes on rise) with 5A @125VAC and 0.5A @125VDC ratings to interface easily with fire panels and monitoring systems
• Vertical, ceiling-mount design (1/2-14 NPT) and 6" leads for fast installation and straightforward integration into existing wiring and security/monitoring networks
• Built for demanding locations — suitable for explosion-proof Class I/II areas and applications that require robust fire protection devices