Used to open and close underfloor heating water separator, central air conditioning (water system) and small valves. Controls the flow of water through the underfloor heating system, suitable for temperature control in homes, hotels, shopping malls and other places. Simple installation, two-wire connection, one valve per circuit, installation size M30 x1.5. Normally closed actuator, opens automatically when energized, no noise, maintenance free. Small size, light weight, space saving. 2W low energy consumption, energy saving. Voltage AC 230V, 50/60Hz Power: 3W Type: NC (normally closed) Protection class: IP54 Storage temperature: -5-50 The production batches are different, and the actual products may be slightly different, which does not affect the use Colour:Photo Color Material:ABS Package Contents: 2 x Electrothermal actuators Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.