Description
Introduction
The Möhlenhoff OEM Actuator 5 AST provides reliable and efficient control for small valves in heating and cooling. On the one hand, you benefit from energy-efficient operation with only 1 W power consumption; on the other hand, you enjoy flexible installation thanks to the pluggable cable and 360° IP54 protection.
In addition, this actuator is TÜV-certified, ensuring both safety and quality. All in all, the AST series combines powerful performance with smart installation features, making it an excellent choice for OEM applications.
Key features
- Versions: normally closed (NC) or normally open (NO)
- Low energy consumption: only 1 W power (6.5 mm = 1.2 W)
- Easy installation: pluggable cable – simple connection or replacement
- Reliability: patented protection against leaking valves
- Ease of use: adjustment control directly on the valve
- Functional feedback: all-round function indication visible in any light
- Protection: surge protection guarantee for the 230 V version
- Quality assurance: TÜV-certified for reliability and safety
Technical specifications Möhlenhoff OEM Actuator 5 AST
| Property | |
|---|---|
| Function | Thermal valve actuator for small valves and manifolds |
| Versions | NC or NO |
| Power | 1 W (6.5 mm = 1.2 W) |
| Stroke | 4 mm, 5 mm, 6.5 mm |
| Actuating force | 100 N (125 N at 6.5 mm) |
| Voltage | 24 V AC/DC or 230 V AC |
| Cable | Pluggable 1 m, 2 × 0.75 mm² |
| Protection | IP54 (with cable connected) |
| Housing | White (RAL 9003), polyamide |
| Certification | TÜV-SÜD, 2.5 kV surge protection |
Available variants
230 V versions
| Type | Operating mode | Stroke | Force | Description |
|---|---|---|---|---|
| AST20405-00N | NC | 4 mm | 100 N | With FirstOpen function, neutral |
| AST20505-00N | NC | 5 mm | 100 N | With FirstOpen function, neutral |
| AST20625-20N | NC | 6.5 mm | 125 N | With FirstOpen function, with removal protection, neutral |
| AST21405-10N | NO | 4 mm | 100 N | Neutral |
| AST21505-10N | NO | 5 mm | 100 N | Neutral |
| AST21625-30N | NO | 6.5 mm | 125 N | With removal protection, neutral |
24 V versions
| Type | Operating mode | Stroke | Force | Description |
|---|---|---|---|---|
| AST40405-00N | NC | 4 mm | 100 N | With FirstOpen function, neutral |
| AST40505-00N | NC | 5 mm | 100 N | With FirstOpen function, neutral |
| AST40625-20N | NC | 6.5 mm | 125 N | With FirstOpen function, with removal protection, neutral |
| AST41405-10N | NO | 4 mm | 100 N | Neutral |
| AST41505-10N | NO | 5 mm | 100 N | Neutral |
| AST41625-30N | NO | 6.5 mm | 125 N | With removal protection, neutral |
Available options
| Option | Description |
|---|---|
| Cable length | Standard 2 m grey – 2 x 0.75 mm², custom lengths available on request |
| Cable version (halogen-free) | 1 m, 2 m, 3 m, 5 m in white – 2 x 0.75 mm², meets fire safety and environmental requirements |
| Valve adapter | For precise and easy mounting thanks to the click mechanism |
| Packaging | Customized and printed according to specifications |
| Supply voltage | Other voltage versions (such as 12 V) available on request |
| Protective cap | Protection against theft and vandalism for actuators with 4 mm or 5 mm stroke |
FAQ
Is the actuator suitable for installation in any orientation?
All in all, the patented seal provides IP54 protection, allowing you to install the actuator in 360°, including upside down.
What does the “First-Open” function mean?
If the actuator is NC, it opens automatically when voltage is applied for the first time. This enables system heating before electrical connection.
Can you synchronize with a leaking valve?
Yes, thanks to 100% leakage protection, you prevent unwanted leakage and maintain reliable operation.
Which stroke lengths are available?
You can choose from 4, 5, or 6.5 mm, so the actuator fits virtually all valve brands.
Are there 24 V and 230 V variants?
On the one hand, there are 24 V AC/DC versions; on the other hand, there are 230 V AC versions with surge protection.
Do you have any questions or would you like more information? Please contact us! You can reach us by phone, email or, if you prefer, via the chat function.