Danfoss AME 659 SD electric linear actuator, OEM order code 082G3454. Supply voltage 24 V AC. Rated stroke 50 mm, closing force 2000 N, actuator speed 2 / 6 s/mm (selectable). Control is modulating (0(2)–10 V / 0(4)–20 mA) with 3-point fallback and position feedback, for continuous proportional valve positioning. The actuator is fitted with safety spring-return function (spring down / stem retracts to close on power loss), so the valve moves to its safe end position on loss of supply. Power consumption 19 W. Enclosure IP54, protection class II per EN 60730-1. Ambient range 0 °C to 55 °C, with manual override. The AME 659 SD motorises large Danfoss globe/seat valve bodies (VFG 2, VFGS 2, VFU 2, VFQ 2, VF and matched series); the 50 mm stroke and 2000 N force suit the large DN range of those valves. Application: HD District Heating. Net weight 9.778 Kilogram. Data quoted verbatim from store.danfoss.com (code 082G3454).