Features Automatic Heating Control: This electrothermal actuator is designed to automatically control the return valve on the heating circuit distributor via the indoor thermostat, ensuring precise and efficient heating regulation. Powerful Operating Force: With a 100N operating force and 4mm drive, this underfloor heating thermal actuator offers reliable performance and smooth operation, ensuring quiet and maintenance-free use. Flame Retardant Material: Made of flame retardant PC material, this thermal actuator provides enhanced safety and durability for long-term use. Robust Specifications: Operating at 230VAC, with an IP54 flame retardant class, and an operating temperature range of -25 to 65°C, this normally close thermal actuator is designed to withstand varying conditions with ease. Convenient Installation: Featuring nut connection installation, this normally close thermal actuator offers a quick and simple setup process for added convenience. Specification: Item Type: Electrothermal Actuator Main Body Material: Flame Retardant PC Working Voltage: 230VAC Flame Retardant Rating: IP54 Working Temperature: -25-65℃ Execution Height: Approx. 3-5mm / 0.12-0.20in Connection Size: M30x1.5m Package List: 1 x Electrothermal Actuator Package List 1 x Electrothermal Actuator