Belimo LM24A-SR 24V Modulating Actuator | 5Nm Torque, IP54 Protection

Belimo LM24A-SR Actuator Overview

The Belimo LM24A-SR actuator is a compact and reliable solution for HVAC and industrial automation systems.
It operates with AC/DC 24 V, delivering 5 Nm torque and precise modulation control.
The actuator supports a 2…10 V operating range, position feedback, and adjustable end stops.
With IP54 protection, low noise at 35 dB(A), and a universal shaft clamp (6…20 mm), it ensures flexible installation.
Its maintenance-free design, hygiene certification, and wide operating temperature from -30°C to +50°C make it ideal for demanding environments.

Belimo LM24A-SR Technical Specifications

Electrical Data

• Nominal voltage: AC/DC 24 V
• Frequency: 50/60 Hz
• Voltage range: AC 19.2…28.8 V / DC 19.2…28.8 V
• Power consumption in operation: 1 W
• Power consumption at rest: 0.4 W
• Wire sizing power: 2 VA
• Supply connection: 1 m cable, 4x 0.75 mm²
• Parallel operation: Supported (check performance data)

Functional Data

• Torque: 5 Nm
• Operating range: Y 2…10 V
• Input impedance: 100 kΩ
• Position feedback: U 2…10 V (max. 1 mA)
• Position accuracy: ±5%
• Direction of motion: Switch-selectable CW/CCW
• Manual override: Push-button, lockable
• Angle of rotation: Max. 95°, adjustable with end stops
• Running time: 150 s / 90°
• Sound power level: 35 dB(A)
• Mechanical interface: Universal shaft clamp 6…20 mm
• Position indication: Mechanical, pluggable

Safety and Protection

• Protection class: IEC/EN Class III, SELV
• Power source: UL Class 2 supply
• Degree of protection: IEC/EN IP54, NEMA 2
• Housing: UL Enclosure Type 2
• EMC: CE 2014/30/EU compliant
• Certification: IEC/EN 60730-1, IEC/EN 60730-2-14
• UL approval: cULus (UL60730-1A, UL60730-2-14, CAN/CSA E60730-1)
• UL compliance: Guaranteed regardless of production site

Hygiene and Reliability

• Hygiene test: VDI 6022 Part 1 / SWKI VA 104-01
• Design: Cleanable, disinfectable, low emission
• Type of action: Type 1
• Rated impulse voltage: 0.8 kV
• Pollution degree: 3
• Ambient humidity: Max. 95% RH, non-condensing
• Ambient temperature: -30…50°C
• Storage temperature: -40…80°C
• Servicing: Maintenance-free
• Weight: 0.47 kg
  

  Belimo LM24A-SR 24V Modulating Actuator | 5Nm Torque, IP54 Protection