NF24SE Damper actuators with spring return for fire dampers, 8 Nm

Well-suited for applications with security / fire dampers used as antifreeze, antismoke or for sealing in the hygienic-sanitary field.
Specifications for NF24SE
Supply voltage 24 V AC / DC
Power consumption Operating: 7.0 W Maintenance: 2.0 W
Auxiliary switch 2 SPDT fixed 3 (1.5) A / AC 230 V
Weight 2200 g
Specifications for Damper actuators with spring return for fire dampers, 8 Nm
Max. damper size 1.5m2
Torque 8Nm
Frequency 50…60 Hz
Thermal sensor Duct 72°C
Running time, actuator 75…95s
Running time, spring return < 25 s
Rotation angle 90°
Ambient temperature -20…+50°C
Ambient humidity 5…95 % RH
Noise level Max < 45 dB
Mounting Directly on jack shaft
For jack shaft 12 mm (square shaft)
Protection class IP54
Isolation class II
Certification CE