DB-SF2.90/12 Damper actuators with spring return for fire dampers, 20 Nm

This product is discontinued

Well-suited for applications with security / fire dampers used as antifreeze, antismoke or for sealing in the hygienic-sanitary field.

Navigate on this page

Specifications for DB-SF2.90/12
Supply voltage 230 V AC
Power consumption operating: max. 9,0 W / 10,0 VA
Auxiliary switch 2 x 5 (1,5) A / AC 230 V
Thermal sensor -
Specifications for Damper actuators with spring return for fire dampers, 20 Nm
Max. damper size 3m2
Torque 20Nm
Frequency 50…60 Hz
Thermal sensor Thermal fuse 72 ° C on duct 72°C (only models ...TA-12)
Running time, actuator 150s
Running time, spring return Max 20 s
Rotation angle 90°
Ambient temperature -20…+50°C
Ambient humidity 5…95 % RH
Noise level Motor: < 45 dB
Spring: < 65 dB
Mounting Directly on jack shaft
For jack shaft 12 mm (square shaft)
Weight 2500 g
Protection class IP54
Isolation class III (DB-SF2:
Certification CE