Kidde Fenwal 27021-1 (190°F) Heat Detector

The Kidde Fenwal 27021-1 (190°F) is a DETECT-A-FIRE horizontal, surface-mount heat detector for overheat/fire signaling in ordinary (non-hazardous) locations. It is a normally open device that closes on temperature rise at a factory-set 190°F (88°C). The rate-compensated sensing design delivers accurate response to both slow- and fast-developing fires, and the low-profile housing mounts directly to a ceiling or standard 4″ box. Key Specifications: Mounting/Style: Horizontal, surface mount (connector-block terminals) Set Point: 190°F (88°C), closes on rise Contact: Normally open; suitable for initiating low-voltage alarm/releasing circuits Applications: HVAC plenums, machinery spaces, and general commercial/industrial areas Alternate Part Numbers (also seen as): 12-A27021-001-04 12-A27021-001-04-0T 12-A27021-001-190 27021-1-190