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actuators: with return spring

LF – 4 Nm

Actuator for air dampers with return spring. It is intended for the control of dampers in building installations and enables the implementation of safety functions.

– for dampers with an area up to approx. 0.8 m2

– torque 4 Nm

– AC 24 V rated voltage

Type with return spring
Actuator rotary
Power [V] 230 (AC), 48 (DC), 24 (AC/DC), 24 (AC) – depends on type and version
Control 3-point, on / off, analog, digital, PWM (pulse width modulation)
Torque [Nm] 4 (nom)
Max. rotary angle [°] 95
Run time for angle / stroke [s] <75-150 (motor); <16 (spring)
Clamping for the damper axis [mm] 8-16
Damper surface [m2] < 0,8 (multileaf dampers with air flow up to 8 m / s)
Protection class IP 54
Environment temp. [°C] from -30 to +50
Warranty 5 years

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