Fire and smoke spring return damper actuator, 3 Nm

Damper actuator serie ST3 to operate and position air dampers in HVAC systems. For air dampers up to approx. 0,6 m2 Nominal voltage 24 V AC/DC and 100...240 V AC Control: 2-point, on-off Caracteristics: shaft dimensions standard 12/12 mm square, minimum shaft length 90 mm, antirotation bracket provided for stability, selectable direction of rotation, 2 not adjustable SPDT auxiliary switches, 1 m cable connection, thermal duct sensor included.