Belimo's RobustLine Rotary Actuators offer a diverse range of solutions for precise control in HVAC systems. The Non Fail-Safe NM and SM series, with types like NM24P and SM24P, cater to dampers up to 4m² with nominal torques of 10Nm and 20Nm respectively, operating at 24V and 230V. The Fail-Safe NKQ series, including NKQ24P-1, is designed for swift response within 4s, suitable for smaller dampers up to 1.2m², and a 6Nm torque, exclusively at 24V, ensuring reliable and efficient performance.