10/09/2026
When your burner's air-fuel ratio is off, efficiency drops—and so does your bottom line.
Meet the SQN31.402A2700 Servo Motor—the electro-motoric actuator built for precise damper and air/fuel ratio control in small to medium-sized oil and gas burners.
⚙️ Key Specs You Can Count On:
Rated Torque: 3 Nm (holding torque: 3 Nm)
Running Time (90°): 30 seconds
Rotation: Clockwise
Voltage: AC 220–240 V (–15% / +10%)
Frequency: 50–60 Hz (±6%)
Power Consumption: 6.5 VA
Protection Class: IP40
Auxiliary Switches: 3 units
Housing Size: 125 mm
🏭 Where It Works:
This servo motor is designed specifically for burner damper positioning and air/fuel ratio control in industrial combustion systems.Whether you're running oil-fired or gas-fired burners, the SQN31.402A2700 ensures optimal mixing of fuel and combustion air—delivering cleaner combustion and better fuel economy.
🔧 Built to Perform:
Cam-controlled with gear clutch mechanism
Internal and external position indication
Easy adjustment of limit and auxiliary switches
Durable black-gray thermoplastic housing with aluminum die-cast gear casing
🔄 Need a Different Spec? Check These Alternatives:
Model Torque Running Time (90°) Rotation
SQN31.401A2700 3 Nm 30s Clockwise
SQN31.221A2700 1.8 Nm 12s Clockwise
SQN30.402A2700 3 Nm 30s Counterclockwise
SQN31.401A2760 3 Nm 30s Clockwise
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