Belimo LMB24-SR
SKU: CS522162MPN: LMB24-SR
Damper Actuator, 45 in-lb [5 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, modulating




Product Details
Features:
- Brushless DC Motor for Added Accuracy and Controllability.
- Cut Labor Costs with Simple Direct Coupling.
- Self-Centers on ⅝” Jackshafts with Standard Clamp or ¾” with Flexible Line Selection or Accessory Clamp.
- Check Damper Position with Clear Position Indicator.
- Don’t Worry about Actuator Burn-Out; Belimo is Overload Proof throughout Rotation.
- Enjoy Added Flexibility with Easy Mechanical Stops to Adjust Angle of Rotation.
- Need to Change Control Direction? Do it easily with a Simple Switch.
- Easily Accessible Manual Override Button helps you Pre-Tension Damper Blades.
- Fully Adjustable Built-In Auxiliary Switch (LMB24-3-S).
- Auxiliary Switch and Feedback Potentiometer Add-Ons Mount Directly on Clamp, Includes Conduit Connector.
- Standard 3ft Plenum Rated Cable and Conduit Connector Provided on Basic Models.
- Added Flexibility to Select Clamp, Electrical Connection, and Running Time to fit your Specific Application with Belimo’s New Flexible Line of Actuators.
The LMB24-SR is used for proportional modulation of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications.
The actuator is not provided with and does not require any limit switches, but is electronically protected against overload. The anti-rotation strap supplied with the actuator will prevent lateral movement.
Attributes
| Control | modulating |
| Fail-Safe | Non-Spring Return |
| Torque | 45 in-lb |
| Nominal Voltage | AC/DC 24 V |
| Transformer Sizing | 3 VA (class 2 power source) |
| Enclosure | UL Enclosure Type 2 |
| Power Supply | 24 VAC, ±20%, 50/60 Hz, 24 VDC, ±10% |
| Power Consumption In Operation | 1.5 W |
| Power Consumption In Rest Position | 0.4 W |
| Electrical Connection | 18 GA plenum cable with ½” conduit connector, degree of protection NEMA 2 / IP54, 3 ft [1 m] 10 ft [3 m] and 16ft [5 m] |
| Overload Protection | electronic throughout 0…95° rotation |
| Operating Range | 2…10 V, 4…20 mA w/ ZG-R01 (500 Ω, ¼ W resistor) |
| Input Impedance | 100 kΩ for 2…10 V (0.1 mA), 500 Ω for 4…20 mA |
| Position Feedback | 2…10 V, Max. 0.5 mA |
| Angle Of Rotation | Max. 95°, adjustable with mechanical stop |
| Direction Of Motion Motor | selectable with switch 0/1 |
| Position Indication | Mechanically, 30…65 mm stroke |
| Running Time (Motor) | 95 s, constant, independent of load |
| Ambient Humidity | max. 95% r.H., non-condensing |
| Ambient Temperature | -22…122°F [-30…50°C] |
| Storage Temperature | -40…176°F [-40…80°C] |
| Degree Of Protection Iec/En | IP54 |
| Degree Of Protection Nema/Ul | NEMA 2 |
| Connection | cable |
| Servicing | maintenance-free |
| Housing Material | UL94-5VA |
| Nominal Voltage Dc | 24 V |
| Nominal Voltage Ac | 24 V |
| Noise Level, Motor | 35 dB(A) |
| Torque Motor | 45 in-lb [5 Nm] |
| Quality Standard | ISO 9001 |
| Agency Listing | cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2014/30/EU and 2014/35/EU; Listed to UL 2043 - suitable for use in air plenums per Section 300.22© of the NEC and Section 602.2 of the IMC |
| Shaft Diameter | ¼…⅝” round, centers on ⅝”, ¾” clamp available |
| Fail-Safe Function | Non fail-safe |
| Control Type Web | DC 2…10 V |
| Fail-Safe | NO |
Specifications
| SKU | CS522162 |
|---|---|
| MPN | LMB24-SR |











