Belimo NM230A damper actuator for HVAC air dampers up to approx. 2 m²; AC 100–240 V (85–265 V), open/close + 3-point, 10 Nm, IP54 / NEMA 2, 150 s/90°, with lockable manual override
The Belimo NM230A is a reliable rotary actuator for adjusting HVAC air dampers in technical building installations. It supports open/close and 3-point (floating) control, making it suitable for standard BMS and control panel wiring. It includes a lockable push-button manual override, adjustable mechanical end stops, and overload protection that automatically stops the actuator at the end stop.
Applications
AHU fresh/return/exhaust air dampers
Zone dampers in ducted HVAC systems
Fan interlocks and damper proof (using add-on auxiliary switches if required)