Description
Discover the precision and reliability of the Belimo LR24A-SR Modulating Rotary Actuator for ball valves, designed to meet the exacting demands of modern HVAC systems. This actuator ensures optimal performance and efficiency, making it a valuable addition to your equipment lineup. Explore the detailed specifications and features that set this product apart.
Click here for the technical data PDF
Electrical Data
- Nominal voltage: AC/DC 24 V
- Nominal voltage frequency: 50/60 Hz
- Nominal voltage range: AC 19.2...28.8 V / DC 19.2...28.8 V
- Power consumption in operation: 1.5 W
- Power consumption in rest position: 0.4 W
- Power consumption for wire sizing: 3 VA
- Connection supply/control: Cable 1 m, 4x 0.75 mm²
- Parallel operation: Yes (note the performance data)
Functional Data
- Torque motor: 5 Nm
- Operating range Y: 2...10 V
- Input impedance: 100 kΩ
- Position feedback U: 2...10 V
- Position feedback U note: Max. 1 mA
- Position accuracy: ±5%
- Manual override: with push-button, can be locked
- Running time motor: 90 s / 90°
- Sound power level, motor: 35 dB(A)
- Position indication: Mechanical, pluggable
Safety Data
- Protection class IEC/EN: III, Safety Extra-Low Voltage (SELV)
- Power source UL: Class 2 Supply
- Degree of protection IEC/EN: IP54
- Degree of protection NEMA/UL: NEMA 2
- Enclosure UL: Enclosure Type 2
- EMC: CE according to 2014/30/EU
- Certification IEC/EN: IEC/EN 60730-1 and IEC/EN 60730-2-14
- UL Approval: cULus according to UL60730-1A, UL60730-2-14, and CAN/CSA E60730-1
- Type of action: Type 1
- Rated impulse voltage supply/control: 0.8 kV
- Pollution degree: 3
- Ambient humidity Max.: 95% RH, non-condensing
- Ambient temperature: -30...50°C [-22...122°F]
- Storage temperature: -40...80°C [-40...176°F]
- Servicing: maintenance-free
Weight
Weight: 0.48 kg
Product Features
- The Belimo LR24A-SR actuator connects to a standard control signal of 0...10 V, driving to the position defined by the control signal.
- The measuring voltage U serves for the electrical display of the valve position (0.5...100%) and acts as a control signal for other actuators.
- This device offers straightforward, direct mounting on the ball valve with a central screw, and the mounting orientation can be selected in 90° steps.
- Manual override with a push-button is possible, allowing the gear train to disengage for as long as the button is pressed or remains locked.
- Additionally, the actuator has an adjustable angle of rotation with mechanical end stops and is overload-protected, requiring no limit switches.
Accessories
- Auxiliary switch 1x SPDT add-on: S1A
- Auxiliary switch 2x SPDT add-on: S2A
- Feedback potentiometer 140 Ω add-on: P140A
- Feedback potentiometer 200 Ω add-on: P200A
- Feedback potentiometer 500 Ω add-on: P500A
- Feedback potentiometer 1 kΩ add-on: P1000A
- Feedback potentiometer 2.8 kΩ add-on: P2800A
- Feedback potentiometer 5 kΩ add-on: P5000A
- Feedback potentiometer 10 kΩ add-on: P10000A
Electrical Installation
- Supply from isolating transformer.
- Parallel connection of other actuators is possible, observing the performance data.
- The direction of the rotation switch is covered, with the factory setting at direction of rotation Y2.
For more information and to explore our range of Belimo products, visit our website at https://ecospares.co.uk/collections/belimo. If you need any assistance, please contact us.
