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Siemens Actuator SQN 31 351A2700 - Servo Motors
SiemensServo Motors

Siemens Actuator SQN 31 351A2700

Siemens SQN 31 reversible synchronous motor for air damper and fuel/gas valve control applications. Delivers 1 Nm nominal torque with 0.8 Nm holding torque, completing 90° rotation in 4.5 seconds. Operates on 220V or…

SKU 3G-CBM-06577

Brand
Siemens
Item
Actuator SQN 31 351A2700
Category
Servo Motors
UNSPSC
26101205 — Servo motor DC
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Siemens
motor type
reversible synchronous motor
application
air damper and fuel/gas valve control on low to medium power oil and gas burners
voltage 50 60hz
220V ±15% / 240V +10% or 100V ±15% / 110V +10%
holding torque nm
0.8
nominal torque nm
1
rotation time 90deg
4.5 s
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Siemens SQN 31 reversible synchronous motor for air damper and fuel/gas valve control applications. Delivers 1 Nm nominal torque with 0.8 Nm holding torque, completing 90° rotation in 4.5 seconds. Operates on 220V or 100V at 50/60 Hz, suitable for low to medium power HVAC and combustion control systems.

Frequently Asked Questions

What is the Siemens SQN 31 351A2700 actuator used for?

The Siemens SQN 31 351A2700 is a reversible synchronous motor designed for air damper and fuel/gas valve control on low to medium power oil and gas burners. It is commonly used in HVAC and combustion control systems to regulate combustion air and fuel volumes in response to load.

What are the specifications of the Siemens SQN 31 351A2700?

The Siemens SQN 31 351A2700 delivers 1 Nm nominal torque with 0.8 Nm holding torque, completing 90° rotation in 4.5 seconds. It operates on 220V ±15% / 240V +10% or 100V ±15% / 110V +10% at 50/60 Hz. It features a robust plastic housing, screw terminals, and adjustable auxiliary and limit switches.

Where to buy the Siemens SQN 31 351A2700 in Singapore?

3G Electric supplies the Siemens SQN 31 351A2700 actuator to Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact our team for pricing and lead time on this OEM Siemens servo motor for burner and HVAC applications.

How to install the Siemens SQN 31 351A2700 actuator?

Installation must be performed by qualified personnel only. Ensure the power supply is completely disconnected before working near terminals. Mount the actuator securely, verify correct wiring per the Siemens datasheet, and check that the rotation direction matches your application (SQN31... rotates right). Do not use after a drop or impact.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks
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Siemens Products

3G Electric supplies Siemens servo motors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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