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Belimo LRB24-SR-T 24V Modulating Damper Actuator with 2–10V Feedback
- Regular price
- $312.00
- Sale price
- $312.00
- Regular price
-
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Product Description P/N: LRB24-SR-T
Description
The Belimo LRB24-SR-T is a modulating actuator for HVAC applications requiring precise damper positioning from a 24 V AC/DC supply. It accepts 2–10 V or 4–20 mA control signals and provides 2–10 V position feedback with 90° adjustable rotation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC Damper Actuators |
| Part Number | LRB24-SR-T |
| Subcategory | Modulating Damper Actuators |
| Nominal Voltage | AC/DC 24 V |
| Nominal Voltage Frequency | 50/60 Hz |
| Nominal Voltage Range | AC 19.2...28.8 V / DC 21.6...28.8 V |
| Power Consumption (Running) | 1.5 W |
| Power Consumption (Holding) | 0.2 W |
| Transformer Sizing | 3 VA |
| Overload Protection | Electronic throughout 0...90° rotation |
| Electrical Protection | Double insulated |
| Operating Range Y | 2...10 V / 4...20 mA with ZG-R01 (500 Ω, 1/4 W resistor) |
| Input Impedance | 100 kΩ for 2...10 V; 500 Ω for 4...20 mA |
| Position Feedback U | 2...10 V |
| Maximum Feedback Current | 0.5 mA |
| Direction of Motion | Selectable with 0/1 switch |
| Manual Override | External push button |
| Angle of Rotation | 90°, adjustable with mechanical stop |
| Motor Running Time | 90 s / 90° |
| Sound Power Level | 35 dB(A) |
| Position Indication | Mechanical, pluggable |
| Power Source | UL Class 2 Supply |
| Degree of Protection | NEMA 2 |
| Housing Type | UL Enclosure Type 2 |
| Ambient Temperature | -22...122°F [-30...50°C] |
| Storage Temperature | -40...176°F [-40...80°C] |
| Ambient Humidity | Max. 95% RH, non-condensing |
| Servicing | Maintenance-free |
| Agency Listing | cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02 |
| Compliance | CE acc. to 2014/30/EU; UL 2043 compliant |
| Quality Standard | ISO 9001 |
| Weight | 1.3 lb |
Information About LRB24-SR-T
The LRB24-SR-T is designed for proportional control of air dampers in building automation and ventilation systems. Its electronic control architecture supports selectable motor direction and continuous position adjustment within the actuator's 90° mechanical range. The actuator includes a pluggable mechanical position indicator and an external push-button for manual override. Double-insulated construction, electronic overload protection, and a NEMA 2 enclosure support installation in protected HVAC environments.
Key Features:
- 24 V AC/DC Supply: Operates from AC 19.2...28.8 V or DC 21.6...28.8 V.
- Modulating Control: Accepts 2...10 V or 4...20 mA input signals for proportional positioning.
- Position Feedback: Provides a 2...10 V feedback signal with a maximum output current of 0.5 mA.
- Adjustable Rotation: Provides 90° rotation with adjustment through a mechanical stop.
- Motor Direction Selection: Allows direction selection using the integrated 0/1 switch.
- Manual Override: Includes an external push button for manual actuator operation.
- Electronic Protection: Provides overload protection throughout the 0...90° rotation range.
- Low Operating Noise: Produces a motor sound power level of 35 dB(A).
The LRB24-SR-T delivers the reliability and precision required for modulating HVAC damper control and building automation applications.
Description
The Belimo LRB24-SR-T is a modulating actuator for HVAC applications requiring precise damper positioning from a 24 V AC/DC supply. It accepts 2–10 V or 4–20 mA control signals and provides 2–10 V position feedback with 90° adjustable rotation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC Damper Actuators |
| Part Number | LRB24-SR-T |
| Subcategory | Modulating Damper Actuators |
| Nominal Voltage | AC/DC 24 V |
| Nominal Voltage Frequency | 50/60 Hz |
| Nominal Voltage Range | AC 19.2...28.8 V / DC 21.6...28.8 V |
| Power Consumption (Running) | 1.5 W |
| Power Consumption (Holding) | 0.2 W |
| Transformer Sizing | 3 VA |
| Overload Protection | Electronic throughout 0...90° rotation |
| Electrical Protection | Double insulated |
| Operating Range Y | 2...10 V / 4...20 mA with ZG-R01 (500 Ω, 1/4 W resistor) |
| Input Impedance | 100 kΩ for 2...10 V; 500 Ω for 4...20 mA |
| Position Feedback U | 2...10 V |
| Maximum Feedback Current | 0.5 mA |
| Direction of Motion | Selectable with 0/1 switch |
| Manual Override | External push button |
| Angle of Rotation | 90°, adjustable with mechanical stop |
| Motor Running Time | 90 s / 90° |
| Sound Power Level | 35 dB(A) |
| Position Indication | Mechanical, pluggable |
| Power Source | UL Class 2 Supply |
| Degree of Protection | NEMA 2 |
| Housing Type | UL Enclosure Type 2 |
| Ambient Temperature | -22...122°F [-30...50°C] |
| Storage Temperature | -40...176°F [-40...80°C] |
| Ambient Humidity | Max. 95% RH, non-condensing |
| Servicing | Maintenance-free |
| Agency Listing | cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02 |
| Compliance | CE acc. to 2014/30/EU; UL 2043 compliant |
| Quality Standard | ISO 9001 |
| Weight | 1.3 lb |
Information About LRB24-SR-T
The LRB24-SR-T is designed for proportional control of air dampers in building automation and ventilation systems. Its electronic control architecture supports selectable motor direction and continuous position adjustment within the actuator's 90° mechanical range. The actuator includes a pluggable mechanical position indicator and an external push-button for manual override. Double-insulated construction, electronic overload protection, and a NEMA 2 enclosure support installation in protected HVAC environments.
Key Features:
- 24 V AC/DC Supply: Operates from AC 19.2...28.8 V or DC 21.6...28.8 V.
- Modulating Control: Accepts 2...10 V or 4...20 mA input signals for proportional positioning.
- Position Feedback: Provides a 2...10 V feedback signal with a maximum output current of 0.5 mA.
- Adjustable Rotation: Provides 90° rotation with adjustment through a mechanical stop.
- Motor Direction Selection: Allows direction selection using the integrated 0/1 switch.
- Manual Override: Includes an external push button for manual actuator operation.
- Electronic Protection: Provides overload protection throughout the 0...90° rotation range.
- Low Operating Noise: Produces a motor sound power level of 35 dB(A).
The LRB24-SR-T delivers the reliability and precision required for modulating HVAC damper control and building automation applications.