Description
The Belimo NM24P-SR is a compact spring return damper actuator designed for precise modulating control in HVAC air-handling applications. It operates on AC/DC 24 V, delivers 10 Nm of torque, and features a sealed IP66/67 enclosure for reliable performance in demanding environments.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Belimo |
| Category |
Actuators & Dampers |
| Part Number |
NM24P-SR |
| Subcategory |
Damper Actuators |
| Actuator Type |
Spring return, modulating |
| Nominal Torque |
10 Nm |
| Nominal Voltage |
AC/DC 24 V |
| Nominal Frequency |
50/60 Hz |
| Voltage Range |
AC 19.2…28.8 V / DC 19.2…28.8 V |
| Power Consumption (Running) |
2 W |
| Power Consumption (Rest) |
0.4 W |
| Power Consumption (Wire Sizing) |
4 VA |
| Control Signal |
2…10 V |
| Position Feedback |
2…10 V |
| Position Accuracy |
±5% |
| Angle of Rotation |
Max. 95°, adjustable |
| Running Time |
150 s / 90° |
| Manual Override |
Lockable push-button |
| Mechanical Interface |
Universal shaft clamp 10…20 mm |
| Degree of Protection |
IP66/67, NEMA 4X |
| Ambient Temperature |
-22…122°F (-30…50°C) |
| Weight |
1.7 kg |
Information About NM24P-SR
The NM24P-SR belongs to Belimo’s high-protection damper actuator series developed for reliable airflow control in harsh or exposed HVAC installations. It combines spring return fail-safe operation with modulating 2…10 V control to ensure accurate positioning and automatic safety response during power loss. The actuator’s sealed housing and halogen-free connection cable support use in high-humidity, washdown, or outdoor environments. Designed for maintenance-free service, it delivers consistent torque and positioning accuracy throughout its operating life.
Key Features
- Spring Return Fail-Safe Operation: Automatically drives the damper to a defined safety position upon power loss to support system protection.
- Precise Modulating Control: Accepts a 2…10 V control signal with ±5% positioning accuracy for stable airflow regulation.
- High Environmental Protection: IP66/67 and NEMA 4X ratings protect against dust, moisture, and harsh ambient conditions.
- Low Power Consumption: Efficient design minimizes energy use during operation and standby.
- Flexible Installation Options: Universal shaft clamp and adjustable mechanical end stops simplify mounting and setup.
- Manual Override Capability: Lockable push-button override allows safe manual positioning during commissioning or service.
- Quiet And Reliable Performance: Low sound power level supports use in occupied spaces without disturbance.
The NM24P-SR delivers the reliability and precision required for spring return damper control in commercial and industrial HVAC systems.
