Modulating Damper Actuator, 20Nm, 24 V ac/dc / 7122655

Belimo Modulating Damper ActuatorThe Belimo Sf series damper actuator has a modulating control type. It is a spring return actuator with an emergency function for adjusting air dampers in ventilation and air conditioning systems in buildings. It has an adjustable U-clamp, which accepts round or square shafts. This actuator can be installed with a pre-tensioned spring. This product is controlled with a standard signal of DC 0V to 10 V and moves the damper to the operating position. It is overload proof, requires no limit switches. It requires 24VAC/VDC supply voltage.Features and BenefitsThe direction of rotation reversible Spindle driver universal spindle clamp Operating voltage range is between 2VDC and 10VDC Running springtime is <20s PVC connection cable length is 1m Motor and return torque is 20Nm Maximum damper area is 4m² Damper spindle compatibility ranges between 10mm and 25.4mm Power consumption is 5W Noise level 40dB Damper spindle size is between 10mm and 25.4mm Rated impulse voltage is 0.8kV Maintenance-free Service life min. 60,000 emergency positionsCertificationsUL 60730-1A UL 60730-2-14 CAN/CSA E60730-1:02 certified IEC/EN 60730-1 IEC/EN 60730-2-14