RS Components
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Modulating Damper Actuator, 40Nm, 24 V ac/dc

32 In stock for delivery within 7 working day(s)
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RS Stock No.:
Mfr. Part No.:
COO (Country of Origin):
unitsPer unit
1 - 5$507.46
6 +$495.16

Belimo Damper Actuator

The Belimo damper actuator has a modulating 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. 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.

Features and Benefits

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
Low power consumption up to 5.5W
Maximum damper area is 8m²
Damper spindle compatibility ranges between 10mm and 20mm
Motor torque is 40Nm
Noise level is 45dB
Damper spindle size ranges between 26.7mm and 12mm


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

Maximum Damper Area8m²
Damper Spindle Compatibility12 → 26.7mm
Power Consumption4.5W
Control TypeModulating
Supply Voltage24 V ac/dc
Motor Torque40Nm
Noise Level45dB(A)
Maximum Damper Spindle Size26.7mm
Minimum Damper Spindle Size12mm