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SM24A-SR | Belimo Non Fail Safe Rotary Actuator 20 Nm 24 V Modulating
- Regular price
- $425.00
- Sale price
- $425.00
- Regular price
-
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Product Description P/N: SM24A-SR
Description
The Belimo SM24A-SR is a non fail-safe rotary actuator designed for precise modulating control of dampers and rotary valves in HVAC systems. It operates on AC/DC 24 V with a 2–10 V control signal and provides consistent torque output with smooth, controlled rotation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC Control Components |
| Part Number | SM24A-SR |
| Subcategory | Rotary Actuators |
| Actuator Type | Rotary, Non Fail-Safe, Modulating |
| Nominal Voltage | AC/DC 24 V |
| Frequency | 50/60 Hz |
| Voltage Range | AC/DC 19.2–28.8 V |
| Power Consumption (Operation) | 2 W |
| Power Consumption (Rest) | 0.4 W |
| Power Consumption (Sizing) | 4 VA |
| Control Signal | 2–10 V |
| Input Impedance | 100 kΩ |
| Position Feedback | 2–10 V, max. 1 mA |
| Torque Output | 20 Nm |
| Position Accuracy | ±5% |
| Angle of Rotation | Max. 95° (adjustable) |
| Running Time | 150 s / 90° |
| Direction of Motion | Selectable via switch |
| Manual Override | Lockable push-button |
| Mechanical Interface | Universal shaft clamp, 10–20 mm |
| Degree of Protection | IP54 / NEMA 2 |
| Ambient Temperature | −30…50°C |
| Storage Temperature | −40…80°C |
| Ambient Humidity | Max. 95% RH, non-condensing |
| Weight | 0.95 kg |
Information About SM24A-SR
The SM24A-SR is a Belimo rotary actuator developed for applications requiring accurate and stable modulating control without fail-safe spring action. It is commonly used for air damper and rotary valve actuation where controlled positioning and feedback are required. The actuator supports parallel operation and includes selectable rotation direction to simplify system configuration. Its compact design and universal shaft clamp allow flexible installation across a wide range of HVAC equipment.
Key Features
- Non fail-safe modulating operation: Provides precise motor-driven positioning for applications where spring return is not required.
- Stable torque performance: Delivers 20 Nm of torque to support reliable actuation of dampers and rotary valves.
- Proportional control interface: Accepts a 2–10 V control signal with integrated position feedback for closed-loop control.
- Selectable direction of rotation: Motor rotation direction can be configured via switch to match installation requirements.
- Adjustable rotation limits: Mechanical end stops allow precise limitation of rotation angle on both sides.
- Manual override functionality: Lockable push-button enables manual positioning during commissioning or maintenance.
- Universal mechanical interface: Shaft clamp accommodates 10–20 mm shafts for broad compatibility.
The SM24A-SR delivers the reliability and precision required for accurate rotary actuation and stable modulating control in professional HVAC systems.
Description
The Belimo SM24A-SR is a non fail-safe rotary actuator designed for precise modulating control of dampers and rotary valves in HVAC systems. It operates on AC/DC 24 V with a 2–10 V control signal and provides consistent torque output with smooth, controlled rotation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC Control Components |
| Part Number | SM24A-SR |
| Subcategory | Rotary Actuators |
| Actuator Type | Rotary, Non Fail-Safe, Modulating |
| Nominal Voltage | AC/DC 24 V |
| Frequency | 50/60 Hz |
| Voltage Range | AC/DC 19.2–28.8 V |
| Power Consumption (Operation) | 2 W |
| Power Consumption (Rest) | 0.4 W |
| Power Consumption (Sizing) | 4 VA |
| Control Signal | 2–10 V |
| Input Impedance | 100 kΩ |
| Position Feedback | 2–10 V, max. 1 mA |
| Torque Output | 20 Nm |
| Position Accuracy | ±5% |
| Angle of Rotation | Max. 95° (adjustable) |
| Running Time | 150 s / 90° |
| Direction of Motion | Selectable via switch |
| Manual Override | Lockable push-button |
| Mechanical Interface | Universal shaft clamp, 10–20 mm |
| Degree of Protection | IP54 / NEMA 2 |
| Ambient Temperature | −30…50°C |
| Storage Temperature | −40…80°C |
| Ambient Humidity | Max. 95% RH, non-condensing |
| Weight | 0.95 kg |
Information About SM24A-SR
The SM24A-SR is a Belimo rotary actuator developed for applications requiring accurate and stable modulating control without fail-safe spring action. It is commonly used for air damper and rotary valve actuation where controlled positioning and feedback are required. The actuator supports parallel operation and includes selectable rotation direction to simplify system configuration. Its compact design and universal shaft clamp allow flexible installation across a wide range of HVAC equipment.
Key Features
- Non fail-safe modulating operation: Provides precise motor-driven positioning for applications where spring return is not required.
- Stable torque performance: Delivers 20 Nm of torque to support reliable actuation of dampers and rotary valves.
- Proportional control interface: Accepts a 2–10 V control signal with integrated position feedback for closed-loop control.
- Selectable direction of rotation: Motor rotation direction can be configured via switch to match installation requirements.
- Adjustable rotation limits: Mechanical end stops allow precise limitation of rotation angle on both sides.
- Manual override functionality: Lockable push-button enables manual positioning during commissioning or maintenance.
- Universal mechanical interface: Shaft clamp accommodates 10–20 mm shafts for broad compatibility.
The SM24A-SR delivers the reliability and precision required for accurate rotary actuation and stable modulating control in professional HVAC systems.
