The Alpha standard is a thermoelectric actuator for opening and closing valves in the use of the heating, air conditioning, and ventilation control room. - Automatic regulation of return valves in the heating circuit by means of a room thermostat. - Extremely efficient, operating power of only 1 W. - Voltage: 230 V AC, + 10%... - 10%, 50/60Hz working current max.: 300 mA for max 200 ms operating current: 8 mA Power: 1 W closing and operating times: approximately 3 min. - Force: 100 N +/-5% Operating temperature: 0 to + 60 °C Protection class/protection class: IP 54/II CE conformity: EN 60730 / Housing color: Polyamide/gray Weight: 100 g (with cable connector) Surge resistance: min. 2.5 kV. - Compatible with various distributor brands such as COMAP, Heimeier, Kermi, Roth, Thermoval, etc.