1Working Process: Electrothermal actuator is used to automatically control the return valve on the heating circuit distributor via the indoor thermostat. Suitable for Buderus, for Heimeier and for Kermi, etc.<br> 2100N Operating Force: Our underfloor heating thermal actuator with 100N operating force, 4mm drive, off no power and normally close, quiet and maintenance free.<br> 3Flame Retardant PC: Underfloor heating thermal actuator is made of PC material and with great flame retardant performance.<br> 4Flame Retardant Rating: Normally close thermal actuator working voltage is 230VAC, flame retardant class is IP54, operating temperature is 2565C and the execution height is 35mm.<br> 5Connection Installation: Normally close thermal actuator is nut connection installation, convenient and quick, simple operation.<br> Item Type: Electrothermal Actuator<br> Main Body Material: Flame Retardant PC<br> Working Voltage: 230VAC<br> Flame Retardant Rating: IP54<br> Working Temperature: -25-65<br> Execution Height: Approx. 3-5mm / 0.12-0.20in<br> Connection Size: M30x1.5m<br> 1 x Electrothermal Actuator<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store