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Siemens SQN71.664A20 Electric Burner Damper Actuator with Auxiliary Switches
- Regular price
- $399.00
- Sale price
- $399.00
- Regular price
-
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Product Description P/N: SQN71.664A20
Description
The Siemens SQN71.664A20 is an electric rotary actuator for positioning air dampers and control valves in compatible oil and gas burner systems. It operates on 230 VAC and provides 2.5 N·m of nominal torque, with a running time of 30 seconds through 90° at 50 Hz.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Burner Controls |
| Part Number | SQN71.664A20 |
| Subcategory | Burner Damper Actuators |
| Series | SQN71 |
| Actuator Type | Electric rotary actuator |
| Supply Voltage | 230 VAC −15%/+10% |
| Mains Frequency | 50–60 Hz ±6% |
| Power Consumption | 6 VA |
| Drive Motor | Synchronous motor |
| Nominal Torque | 2.5 N·m (approximately 22.1 lb-in) |
| Holding Torque | 1.3 N·m (approximately 11.5 lb-in) |
| Running Time | 30 seconds per 90° at 50 Hz |
| Rotation Direction | Clockwise |
| Switch Configuration | 2 end switches and 2 auxiliary switches |
| Potentiometer | Not included |
| Electrical Connections | Screw terminals; 0.5–2.5 mm² conductors |
| Protection and Safety Class | IP40 with suitable cable entries and fixing screws; Class II to DIN EN 60730 |
| Weight | 0.50 kg (1.10 lb) |
Information About SQN71.664A20
The SQN71.664A20 is part of the Siemens SQN70/SQN71 burner actuator range. Its synchronous motor drives the output shaft and switching camshaft through a geared mechanism. This configuration includes two auxiliary switches and operates without a potentiometer. Clockwise rotation and adjustable switching cams allow the actuator to follow the connected equipment’s specified operating sequence.
Key Features:
- Burner Control Application: Drives compatible air dampers and control valves in oil and gas burner equipment.
- Nominal Torque: Supplies 2.5 N·m of driving torque.
- Holding Torque: Provides a specified holding torque of 1.3 N·m.
- Defined Travel Time: Completes 90° movement in 30 seconds at 50 Hz.
- Clockwise Rotation: Uses the SQN71 clockwise operating configuration.
- Auxiliary Switching: Includes two auxiliary switches for the connected control arrangement.
- Adjustable Cam Settings: Provides color-coded cams for setting switching positions.
- Screw-Terminal Wiring: Accepts conductors with cross-sectional areas from 0.5 to 2.5 mm².
The SQN71.664A20 delivers the reliability and precision required for coordinated damper and valve positioning in compatible burner systems.
Description
The Siemens SQN71.664A20 is an electric rotary actuator for positioning air dampers and control valves in compatible oil and gas burner systems. It operates on 230 VAC and provides 2.5 N·m of nominal torque, with a running time of 30 seconds through 90° at 50 Hz.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Burner Controls |
| Part Number | SQN71.664A20 |
| Subcategory | Burner Damper Actuators |
| Series | SQN71 |
| Actuator Type | Electric rotary actuator |
| Supply Voltage | 230 VAC −15%/+10% |
| Mains Frequency | 50–60 Hz ±6% |
| Power Consumption | 6 VA |
| Drive Motor | Synchronous motor |
| Nominal Torque | 2.5 N·m (approximately 22.1 lb-in) |
| Holding Torque | 1.3 N·m (approximately 11.5 lb-in) |
| Running Time | 30 seconds per 90° at 50 Hz |
| Rotation Direction | Clockwise |
| Switch Configuration | 2 end switches and 2 auxiliary switches |
| Potentiometer | Not included |
| Electrical Connections | Screw terminals; 0.5–2.5 mm² conductors |
| Protection and Safety Class | IP40 with suitable cable entries and fixing screws; Class II to DIN EN 60730 |
| Weight | 0.50 kg (1.10 lb) |
Information About SQN71.664A20
The SQN71.664A20 is part of the Siemens SQN70/SQN71 burner actuator range. Its synchronous motor drives the output shaft and switching camshaft through a geared mechanism. This configuration includes two auxiliary switches and operates without a potentiometer. Clockwise rotation and adjustable switching cams allow the actuator to follow the connected equipment’s specified operating sequence.
Key Features:
- Burner Control Application: Drives compatible air dampers and control valves in oil and gas burner equipment.
- Nominal Torque: Supplies 2.5 N·m of driving torque.
- Holding Torque: Provides a specified holding torque of 1.3 N·m.
- Defined Travel Time: Completes 90° movement in 30 seconds at 50 Hz.
- Clockwise Rotation: Uses the SQN71 clockwise operating configuration.
- Auxiliary Switching: Includes two auxiliary switches for the connected control arrangement.
- Adjustable Cam Settings: Provides color-coded cams for setting switching positions.
- Screw-Terminal Wiring: Accepts conductors with cross-sectional areas from 0.5 to 2.5 mm².
The SQN71.664A20 delivers the reliability and precision required for coordinated damper and valve positioning in compatible burner systems.
