SQN 71.664A20

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Overview of Siemens SQN71.664A20 Electric Actuator

The Siemens SQN71.664A20 is a reversible synchronous motor actuator designed for controlling air dampers and valves on oil or gas burners of small to medium capacity. It is built for precision control, providing load-dependent regulation of fuel and combustion air, which optimizes burner performance and efficiency.

Key Features

  • Rated torque of 2.5 Nm with a holding torque of 1.3 Nm for reliable damper and valve operation.
  • Operates on 230V AC power supply with a frequency range of 50-60 Hz.
  • Maximum angular adjustment of 160° with a scale range of 0-130° for flexible positioning.
  • Includes two auxiliary switches for control and feedback functions.
  • Optional mounting position and cable entry options with screw terminals for wire sizes 0.5 to 2.5 mm².
  • IP40 protection rating compliant with DIN 40050 standards, with provisions to maintain rated protection.
  • Maintenance-free gear train with manual disengagement for easy manual override.

Technical Specs

Specification Details
Model SQN71.664A20
Motor Type Synchronous Motor
Voltage 230 V AC ±15% / +10%
Frequency 50 - 60 Hz ±6%
Torque Rated 2.5 Nm, Holding 1.3 Nm
Angular Adjustment Max 160°, scale 0-130°
Auxiliary Switches 2
Protection Class IP40
Running Time 30 seconds for 90° rotation
Weight Approx. 800 g
Mounting Optional positions
Cable Connection Screw terminals for 0.5 - 2.5 mm² wires

Applications / Use Case

Used primarily with gas or oil burner controls for driving dampers and valves, enabling precise control of combustion air and fuel supply in heating systems.

Siemens provides robust build quality, ease of installation, and service support for reliable industrial burner control.

SQN 71.664A20

$0.00

  • ACHIEVING

    4.0

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    95%

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  • LESS THAN

    1%

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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