Electric actuator SUA21 for valves VVI46…, VXI46…, VVS46…, VXS46…, VD…, VE…, suitable for control of cold and hot water in heating, ventilation and air conditioning systems V…46… valves or radiator valves VD…, VE…, can be used in conjunction with temperature controllers RAB series, RCC series, RDF series.
This manual describes the Siemens SUA21 electric actuator used for controlling HVAC valves such as VVI46, VXI46, VVS46, VXS46, VD, and VE types. It outlines the actuator’s features, including AC230V supply, 150 N displacement force, built‑in 1.5 m cable, and LED position display.
The document includes technical parameters, compatibility tables, installation guidelines, wiring diagrams, and maintenance notes. It also details safety warnings, environmental conditions, and warranty information, emphasizing that the actuator is not repairable and must be replaced if faulty.
| Frequency | 50/60 Hz |
|---|---|
| Power Consumption | 6 VA (running only) |
| Displacement Force | 150 N |
| Travel Time (open/close) | 6 seconds |
| Cable Length | 1.5 m |
| Travel Stroke | 2.5 mm |
Both opening and closing take 6 seconds.
No, the actuator cannot be repaired; it must be replaced if it fails.
The actuator provides a displacement force of 150 N.