Open/Close Damper Actuator, 5Nm, 24 V ac/dc

  • RS Stock No. 504-1242
  • Mfr. Part No. LM24A-S
  • Manufacturer Belimo
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CH
Product Details

Belimo Damper Actuators

Maintenance-free, low power consumption, rotary damper/louvre actuators, compatible with all leading makes of HVAC controls.

Minimum life of 60000 operations
Stall torque technology requires no end switches
Adjustable U-clamp accepts round or square shafts
Visible position indicator
Pushbutton manual override
Direction change switch
IP54 rated
150s motor run time
1m pre-wired cable
Stock nos. 504-1236 & 504-1242 feature an integrated 1xSPDT 3 (0.5)A 250Vac auxiliary switch
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

Belimo Damper Actuator

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 systems in the building. 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.
This actuator has an integrated 1xSPDT 3 (0.5)A 250Vac auxiliary switch.

Features and Benefits

Operation life is minimum 60000
• Pushbutton manual override
• Direction change switch
• Cable length is 1m
• Ambient temperature ranges is between -30°C and 50°C
• Rated impulse voltage is 0.8kV
• Maintenance free
• Power consumption is 1W
• Maximum damper area is 1m²
• Damper spindle compatibility is between 6mm and 20mm
• Motor torque is 5Nm
• Noise level is 35dB


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

Attribute Value
Maximum Damper Area 1m²
Damper Spindle Compatibility 6 → 20mm
Switch Included Yes
Power Consumption 1W
Control Type Open/Close
Supply Voltage 24 V ac/dc
Motor Torque 5Nm
Noise Level 35dB(A)
Maximum Damper Spindle Size 20mm
Minimum Damper Spindle Size 6mm
6 In Global stock for delivery within 4 - 6 working days
Price Each
MYR 561.27
Per unit
1 - 5
6 +