Product Description
BELIMO NFA-S2
The BELIMO NFA-S2 is a robust spring-return actuator designed for the reliable control of air dampers in ventilation and air conditioning systems. Engineered for safety, its spring return mechanism ensures the damper moves to a predefined fail-safe position upon power interruption. The NFA-S2 is highly versatile, featuring a universal power supply for a wide range of voltages (AC 24…240 V and DC 24…125 V). This model includes two integrated auxiliary switches (SPDT) that provide feedback on the damper’s position, making it ideal for complex control and monitoring applications within building automation systems.
Technical Specifications:
- Torque: 10 Nm (motor and spring return)
- Nominal Voltage: AC 24…240 V, 50/60 Hz / DC 24…125 V
- Control: Open/close or 3-point control
- Auxiliary Switch: 2 x SPDT, 1mA…3A (0.5A), AC 250V / DC 30V
- Power Consumption: 5 W (running), 2.5 W (holding)
- Running Time (Motor): 150 s / 90°
- Running Time (Spring Return): < 20 s
- Protection Class: IP54
BELIMO NFA-S2
Discover the BELIMO NFA-S2, a 10 Nm spring-return damper actuator with two integrated auxiliary switches. Ideal for HVAC applications, it offers fail-safe operation and versatile voltage compatibility.
