Butterfly valve
VM series
Water control for heating and air conditioning systems. A compact, easy-to-operate valve with low pressure drop.
View specifications ↗Catalogue / NECA20
Electronic return actuator
NECA20
20 Nm actuator with Electronic Return® and 2-point control. Returns to a predefined emergency position during power interruptions.
Technical information
Product
specifications.
Electronic Return® handles power interruptions of up to 4 seconds. During longer interruptions, the actuator moves the valve or damper to the predefined emergency position (EPS). Includes push-button manual override and a 1-metre cable.
| Torque | 20 Nm |
|---|---|
| Control | 2-point |
| Power supply | 24 VAC/DC ±10% or 230 VAC ±10%, depending on model |
| Running time | 90–125 s |
| Safety return time | 70 s |
| Rotation angle | 90° (95° mechanical limit) |
| Protection rating | IP54 |
| Ambient temperature | −20 to 50 °C |
| Shaft | Ø 12–20 mm / square 11–14 mm |
| Minimum shaft length | 50 mm |
| Power consumption: running / end position | 7.2 W / 1,2 W |
| Weight | 1.2 kg |
Available versions
| Model | Power supply | Auxiliary switches |
|---|---|---|
| NECA 1-20 | 24 VAC/DC | No auxiliary switches |
| NECA 1-20S | 24 VAC/DC | 2 × adjustable SPDT |
| NECA 2-20 | 230 VAC | No auxiliary switches |
| NECA 2-20S | 230 VAC | 2 × adjustable SPDT |
Documentation
All the technical details.
Actuator datasheet · EN · 4 pages
Download PDF ↓Original document: dimensions, model selection and installation information.
Summary based on the supplied documentation. Check the version, mounting and application requirements in the original datasheet. Product appearance may vary.
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