Features Automated Control: The electrothermal actuator automatically manages the return valve on the heating circuit distributor via an indoor thermostat, compatible with brands like , , and Kermi. Powerful and Efficient: Underfloor Heating Thermal Actuator is Features a 100N operating force with a 4mm drive, designed to operate without power and remain normally closed, ensuring quiet and maintenance- . PC Material: Floor Heating Actuator is Constructed from PC material with excellent flame-retardant properties, ensuring safety and longevity. Robust Specifications: The normally closed thermal actuator operates at 230VAC, with an IP54 flame retardant rating, an operating temperature range of -25°C to 65°C, and an execution height of 3-5mm. Easy Installation: The Electrothermal Actuator uses a nut connection for installation, making it convenient, quick, and simple to operate. Spec: 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 How to Use: Take out the product and use it directly. Package List: 1 x Electrothermal Actuator Package List 1 x Electrothermal Actuator