Honeywell Technologies Bi-Metallic Thermostat, Closes at 100 °C, 186 °C Max, Automatic Reset, SPST-NC, 10 A

This thermostat is a bi‑metallic temperature control device designed for industrial and electronic systems where automatic thermal protection is required. It operates as a normally closed switching element that interrupts circuits when a set temperature is reached, providing cycling protection in equipment exposed to elevated temperatures. The unit is intended for panel or component‑level installation in control and safety circuits within electrical and mechanical assemblies.

• Automatic reset at trip temperature for unattended operation
• Opens contacts at 85°C to prevent overtemperature damage
• Single‑pole single‑throw normally closed contact for simple integration
• Rated switching current of 10A to handle moderate load circuits
• Solder tab terminals for direct board or wire attachment
• Withstands continuous ambient up to 186°C for high‑temperature environments

• Suitable for thermal cut‑out on industrial heaters and ovens
• Ideal for temperature control in motor enclosures and transformers
• Used for overtemperature protection in power supplies and inverters
• Can be used for safety interruption in HVAC components
• Used with control panels requiring a Compact automatic reset device

The contacts are rated for switching AC at up to 250V AC, suitable for typical mains and control voltages.

After the operating temperature is exceeded and the contact opens, the mechanism will close again automatically once the temperature falls below the reset threshold.

It does not carry hazardous area certification and should not be specified where such certification is mandated.

The device is specified for operation from 0°C minimum up to a maximum of 186°C ambient.

A bi‑metallic element provides the temperature‑sensitive switching action, offering predictable mechanical response and repeatable actuation.