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KiddeFenwal
Mechanical Temperature Controls

Mechanical Temperature Controls

Reliable Thermal Response for Detection, Control, and Safety

Mechanical temperature controls play a critical role in fire protection and equipment safety by responding to changes in heat without the need for complex electronics or external power. These devices provide dependable, real-time thermal responses for detection, control, and system activation across a wide range of environments.

As part of the Fenwal Controls portfolio within the KiddeFenwal family of brands, these solutions are engineered for durability, accuracy, and long-term performance in industrial, commercial, and specialized applications. Whether used for fire detection, temperature regulation, or equipment protection, mechanical temperature controls serve as a foundational layer in comprehensive fire protection and safety strategies.

THERMOSWITCH™

THERMOSWITCH™

A proven temperature control solution designed to provide precise thermal response for equipment protection and process control across a wide range of applications.

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DETECT-A-FIRE®

DETECT-A-FIRE®

A pre-engineered wet chemical fire suppression system designed to protect commercial cooking appliances and associated ductwork.

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Unit Fire Detection

Unit Fire Detection

A specialized detection solution engineered for high-performance applications such as turbines and industrial equipment, delivering reliable thermal responses in demanding environments.

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Surface Mount THERMOSWITCH™

Surface Mount THERMOSWITCH™

A compact, surface-mounted temperature controller that delivers fast, accurate responses for equipment protection and temperature regulation in industrial and commercial applications.

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Snap Disc Controls

Snap Disc Controls

Bimetal snap-action devices designed for reliable temperature limiting and control across a variety of equipment and system applications.

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Fixed-Rate Heat Detector 08-84

Fixed-Rate Heat Detector 08-84

A fixed-temperature heat detection device engineered to activate at a specific threshold, providing dependable protection for fire detection and safety systems.

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Integrated Thermal Protection
Integrated Thermal Protection

Across the KiddeFenwal Ecosystem

Mechanical temperature controls are a critical component of a broader fire protection strategy. When combined with KiddeFenwal detection, control, and suppression technologies, these devices support coordinated system response, improved reliability, and enhanced protection of people, property, and processes.

From early heat detection to equipment-level temperature control, Fenwal Controls solutions deliver trusted performance backed by decades of engineering expertise.

Built for Reliability. Designed for Protection.

Explore Fenwal Controls mechanical temperature solutions or connect with our team to find the right fit for your application.

In this section

  • DETECT-A-FIRE®

    DETECT-A-FIRE® (D-A-F) heat detectors provide precise, dependable fire detection by accurately sensing surrounding air temperature and responding to true fire conditions without the false alarms commonly associated with other detection methods.

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  • Fixed-Rate Heat Detector 08-84

    The Fixed-Rate Heat Detector 08-84 provides reliable, point-based heat detection designed to activate at a predetermined temperature threshold. Engineered for consistent performance in fire protection applications, this device delivers dependable response when specific temperature conditions are reached.

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  • Snap Disc Controls

    Snap Disc Controls provide dependable, repeatable temperature control using a proven bi-metal snap-action mechanism. Designed for applications requiring precise actuation at defined temperature thresholds, these compact mechanical devices deliver consistent performance across a wide range of equipment and systems.

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  • Surface Mount THERMOSWITCH™

    Surface Mount THERMOSWITCH™ controllers provide fast, accurate temperature sensing and control through direct contact with heated surfaces. Designed for applications where immediate thermal response is critical, these compact mechanical devices deliver reliable performance without the need for complex electronics or external control systems.

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  • THERMOSWITCH™

    THERMOSWITCH™ temperature controllers provide precise, dependable thermal response for equipment protection and process control across a wide range of industrial and commercial applications. Requiring no power supply , these mechanical devices deliver consistent performance, long service life, and immediate response to temperature changes.

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  • Unit Fire Detection (Turbines)

    Unit Fire Detection solutions provide reliable, localized heat detection for critical equipment and enclosed systems where early thermal response is essential to safety and system integrity.

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Frequently asked questions

How does THERMOSWITCH™ work?

THERMOSWITCH™ uses thermal expansion of its metal shell to open or close contacts at the set point with high repeatability, needs no auxiliary power and withstands vibration and harsh environments – ideal for control and over-temperature protection in OEM equipment.

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KiddeFenwal Vietnam brings the full Kidde Fire Systems, Fenwal Controls and Kidde Fire Protection portfolio – fire detection, suppression and safety controls – to critical industries in Vietnam.