Open/Close Damper Actuator, 20Nm, 24 V ac/dc

The Belimo damper actuator has an open/close control type. This actuator has an adjustable U-clamp, which accepts round or square shafts. It is a rotary/louver actuator. It is compatible with all the leading makes of HVAC controls. The damper actuator is used for adjusting air dampers in ventilation and air-conditioning system installed in buildings. This actuator operates on stall torque technology, which does not require end switches. The damper actuator has no limit switches and is overload-proof. It requires 24VAC/VDC supply voltage.

Optional auxiliary switch (stock no. 504-1545) suitable for use with LM, NM, SM, and GM damper actuators, features 2xSPDT switches rated at 3 (0.5)A 250Vac and supplied with 1m of cable.

Operation life is minimum 60000
Pushbutton manual override
Direction change switch
Cable length is 1m
Ambient temperature ranges between -30°C and 50°C
Rated impulse voltage is 0.8kV
Maintenance-free
Power consumption is 2W
Maximum damper area is 4m²
Damper spindle compatibility ranges between 10mm and 20mm
Motor torque is 20Nm
Noise level is 45dB

Suitable to use with LM, NM, SM, and GM damper actuators

IP54 rated
CE according to 89/336/EEC
92/31/EEC
UL Enclosure Type 2
IEC/EN 60730-1
IEC/EN 60730-2-14