The BELIMO M230ASR, NM230ASR, LM230ASR, LM24ASR, and NM24ASR actuators are precision-engineered rotary units optimized for HVAC damper applications, ensuring reliable torque performance and energy-efficient modulation control. The M230ASR delivers a nominal torque of 20 Nm for dampers up to approximately 4 m², with a centre distance of 10...20 mm, while the NM230ASR provides 10 Nm for up to 2 m² with an 8...26.7 mm centre distance. The LM230ASR offers 5 Nm torque with AC 100...240 V operation, 2...10 V control input, 150-second runtime, and IP54 protection. The LM24ASR operates on AC/DC 24 V, consuming 1 W during operation, 0.4 W in holding mode, and 2 VA for wire sizing, ensuring efficient low-voltage performance. The NM24ASR actuator supports HVAC dampers up to approximately 2 m², with 10 Nm motor torque, AC/DC 24 V nominal voltage, and modulating 2...10 V control for precise airflow regulation. Across North America, Europe, Asia, and worldwide, installation standards and performance adaptation could potentially be influenced by regional HVAC design practices and compliance requirements. For SEO optimization: BELIMO actuator, rotary actuator, HVAC damper, M230ASR, NM230ASR, LM230ASR, LM24ASR, NM24ASR.