Description
The Belimo NMCB24-3 is a 24 VAC/VDC non-spring return damper actuator designed to provide precise on/off and floating-point control of HVAC dampers in commercial building automation systems. Delivering 90 in-lb (10 Nm) of torque, it offers dependable positioning performance for ventilation and air handling applications.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Belimo |
| Category |
HVAC Controls |
| Part Number |
NMCB24-3 |
| Subcategory |
Damper Actuators |
| Product Type |
Non-Spring Return Damper Actuator |
| Power Supply |
24 VAC/VDC |
| Control Type |
On/Off, Floating Point |
| Actuator Type |
Non-Fail-Safe |
| Torque |
90 in-lb (10 Nm) |
| Rotation Angle |
95° |
| Running Time |
Less than 75 seconds |
| Power Consumption (Running) |
2.5 W |
| Power Consumption (Holding) |
0.2 W |
| Power Rating |
4 VA |
| Electrical Connection |
Cable |
| Enclosure Rating |
NEMA 2 |
| Application |
HVAC Air Damper Control |
| Maintenance |
Maintenance-Free |
| Weight |
1.8 lb (0.82 kg) |
Information About NMCB24-3
The NMCB24-3 is a member of the Belimo NM Series of non-fail-safe damper actuators developed for controlling air dampers in HVAC systems. It operates from a 24 VAC/VDC power supply and supports both on/off and floating-point control, allowing seamless integration with a wide range of building automation systems. The actuator features direct cable connection, a maximum 95° rotation angle, and a NEMA 2 enclosure for indoor commercial environments. Its efficient low-power design and maintenance-free construction provide dependable performance for ventilation and air distribution systems.
Key Features:
- 10 Nm Torque Output: Delivers 90 in-lb of torque for reliable damper operation.
- Non-Spring Return Design: Provides controlled positioning without fail-safe spring return.
- 24 VAC/VDC Operation: Compatible with standard low-voltage HVAC control systems.
- On/Off and Floating Control: Supports multiple control methods for flexible integration.
- Fast Operation: Completes full rotation in less than 75 seconds.
- 95° Rotation: Provides precise damper positioning with a wide operating angle.
- Low Power Consumption: Uses only 2.5 W during operation and 0.2 W while holding position.
- NEMA 2 Enclosure: Designed for indoor commercial HVAC installations.
The NMCB24-3 delivers the reliability and precision required for accurate air damper control in commercial HVAC and building automation systems.
