The Belimo MC6C8F is a genuine fail-safe rotary actuator, corresponding to the SRFA-S2-O series, designed for reliable HVAC damper and valve control. This robust actuator provides 20 Nm of torque and operates on a versatile AC/DC 24-240V power supply with on/off control. It features a normally open (NO) fail-safe function, ensuring safety in critical applications. With a running time of 150 seconds for 90° rotation and a rapid fail-safe running time of less than 20 seconds, it offers efficient operation. The unit is equipped with two SPDT auxiliary switches for enhanced functionality and boasts an IP54 protection rating, making it suitable for various environmental conditions.