
SQN31 series compact damper actuator
The Siemens SQN31 is a compact damper actuator designed for industrial and commercial burner applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Damper Actuator / Air Damper Motor |
| Series | SQN31 |
| Application | Industrial and Commercial Burner Systems |
| Control Type | On/Off or Modulating (depending on version) |
| Operating Voltage | 220–240 VAC (common versions available in 110V) |
| Frequency | 50/60 Hz |
| Rotation Angle | Typically 90° |
| Torque Range | Approx. 3 Nm (varies by sub-model) |
| Running Time | Approx. 4–30 seconds (depending on version) |
| Mounting | Direct shaft mounting |
| Fuel Type | Gas or Oil Burners |
| Protection Class | Industrial design |
| Condition | New / OEM |
Notes
Product Overview
The Siemens SQN31 is a compact damper actuator designed for industrial and commercial burner applications.
It is commonly used to control the air damper position in gas and oil-fired burner systems, ensuring accurate air-fuel ratio regulation during burner startup and operation.
The SQN31 series is widely installed in small to medium-sized burners, boilers, and heating systems.
Its compact design, reliable torque output, and stable positioning performance make it a preferred choice in combustion control systems.
This actuator is typically used in single-stage or two-stage burner systems and is compatible with various burner management controllers.
Key Features
- Compact actuator design for burner applications
- Reliable air damper positioning control
- Suitable for gas and oil burner systems
- Available in multiple voltage and control configurations
- Stable torque output for small to medium burners
- Long service life with low maintenance requirements
- Easy installation with direct shaft mounting
Packaging & Delivery
- Individual protective industrial carton packaging
- Shock-resistant internal protection
- Standard export packaging for international shipment
- Fast dispatch for stocked models
- Shipping via courier, air freight, or sea freight
- Bulk supply available for distributors and OEM customers
Frequently Asked Questions (FAQ)
Q: What is the Siemens SQN31 used for?
A: It is a damper actuator used to control air flow in gas and oil burner systems.
Q: Is SQN31 suitable for industrial burners?
A: Yes. It is commonly used in small to medium industrial and commercial burners.
Q: What fuel types can it be used with?
A: It is suitable for both gas-fired and oil-fired burner systems.
Q: What is the typical torque of SQN31?
A: The typical torque is approximately 3 Nm, depending on the specific sub-model.
Q: Is SQN31 a modulating actuator?
A: Some versions are on/off type, while others support modulating control depending on system configuration.
Q: Do you support international shipping?
A: Yes. Worldwide shipping is available.


