Kidde Fenwal 12-F27121-0325 Heat Detector, Fenwal Detect-A-Fire Switch, Vertical Mount

Ensure dependable fire detection where it matters most with the Kidde Fenwal Heat Detector 12-F27121-0325 Detect-A-Fire. Designed for vertical ceiling mounting, this heat detector provides precise 325°F activation and rate-compensated sensing to reduce nuisance alarms and ensure fast, accurate response in high-risk areas. With contacts rated at 5A (125VAC) and 0.5A (125VDC), the unit easily integrates with alarm panels, suppression release devices and monitoring systems used in security and facility surveillance. Built to meet stringent safety requirements, the 27121-325 is UL, ULC, FM and CE certified and carries explosion-proof ratings for Class I (Groups B, C, D) and Class II (Groups E, F, G) locations—making it ideal for industrial, petrochemical, and warehouse applications. The vertical 1/2-14 NPT mount and 6-inch leads allow quick retrofit or new installations without special adapters. For reliable thermal detection that supports your security and monitoring strategy, specify the Kidde Fenwal 12-F27121-0325 in your next fire protection or suppression project—contact us to order or integrate into your system.

• Precise 325°F activation minimizes false trips and delivers reliable fire detection for critical assets
• Rate-compensated sensing for accurate response to real temperature changes in ceiling-mounted installations
• Robust contacts (5A @125VAC / 0.5A @125VDC) for direct integration with monitoring, alarm and release circuits
• Explosion-proof certifications and UL/ULC/FM/CE listings enable safe use in hazardous industrial and storage environments
• Vertical 1/2-14 NPT ceiling mount with 6" leads simplifies installation and wiring into existing fire monitoring systems