Home » Electric Motors and Components » Servo Motor » Siemens Burner Servomotor SQN31.402A2700
Siemens Burner Servomotor SQN31.402A2700
₹ 20,500 Get Latest Price
Product Specifications
| Brand | Siemens |
| Input Phase | Single Phase |
| Torque | 2 NM |
| Power | 230 V |
| Voltage | 230 V |
| Usage/Application | INDUSTRIAL OIL AND GAS BURNER |
| Angular Adjustment | Up to $160^\circ$ (Adjustable via cams) |
| Application | INDUSTRIAL OIL AND GAS BURNER |
| Availability | In Stock |
| Brand | SIEMENS |
| Direction of Rotation | Counter-clockwise (CCW) |
| Drive Shaft | $10\text{ mm}$ (Standard) |
| Duty Cycle | $60\%$ |
| Enclosure Rating | IP40 |
| Feature | Specification |
| Mains Voltage | $220\dots240\text{V AC}$ or $110\dots120\text{V AC}$ |
| Model Name/Number | SQN31.402A2700 |
| Motor Type | AC |
| Phase | Single Phase |
| Power Consumption | $6.5$ VA |
| Weight | Approx. $0.55$ kg |
GST No - 24ANPPP5501P1ZH | Member since 2025
CTM CHAR RASTA, 31, YASH VIJAY SOCIETY, NATIONAL HIGHWAY, AMRAIWADI , CTM, Ahmedabad, Gujarat, 380026
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Product Details
The Siemens SQN31 series is the counter-clockwise (CCW) rotating counterpart to the SQN30. These actuators are electromotoric, reversible units used to control air or gas dampers on small to medium-sized burners. 1. SQN31 Model Overview The model number determines the running time, torque, and the internal circuit configuration (versions A, B, or C). Model Running Time (90∘ at 50Hz) Starting Torque Holding Torque SQN31.101 $4.5$ seconds $1.0$ Nm $0.8$ Nm SQN31.111 $4.5$ seconds $1.0$ Nm $0.8$ Nm SQN31.121 $4.5$ seconds $1.5$ Nm $0.8$ Nm SQN31.151 $12$ seconds $3.0$ Nm $1.2$ Nm SQN31.221 $12$ seconds $1.5$ Nm $0.8$ Nm SQN31.401 $30$ seconds $3.0$ Nm $1.2$ Nm SQN31.411 $30$ seconds $3.0$ Nm $1.2$ Nm 2. Technical Specifications Feature Specification Direction of Rotation Counter-clockwise (CCW) Mains Voltage $220\dots240\text{V AC}$ or $110\dots120\text{V AC}$ Angular Adjustment Up to $160^\circ$ (Adjustable via cams) Power Consumption $6.5$ VA Duty Cycle $60\%$ Enclosure Rating IP40 Weight Approx. $0.55$ kg Drive Shaft $10\text{ mm}$ (Standard) 3. Internal Components The SQN31 uses a synchronous motor and a gear train that can be manually disengaged. The Cam System The actuator is controlled by several color-coded adjustable cams that trigger microswitches: Red Cam: High-fire / Maximum position. Blue Cam: Low-fire / Fully closed position. Orange/Black/Pink Cams: Auxiliary switches used for ignition position or to trigger external components (like a second fuel valve). Manual Release A small lever on the housing allows you to decouple the motor from the gear train. This is essential during installation to manually check if the damper moves freely without binding. 4. Wiring & Control Versions The SQN31 is available in different "Internal Circuit" versions which dictate how it communicates with the burner controller: Version A: Standard 2-position control. Version B: Primarily for burners with air damper control through the burner controller (e.g., LME22). Version C: Often used for modulating control where an external controller (like an RWF55) provides "Open" and "Close" pulses. 5. Comparison: SQN30 vs SQN31 It is critical to choose the correct model based on your burner's mechanical linkage: SQN30: Rotates Clockwise to open the damper. SQN31: Rotates Counter-clockwise to open the damper.
CTM CHAR RASTA, 31, YASH VIJAY SOCIETY, NATIONAL HIGHWAY, AMRAIWADI , CTM, Ahmedabad, Gujarat, 380026
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