SiemensServo Motors
Siemens Actuator SQN 31 121A2760
Siemens SQN 31 servo motor is a reversible synchronous actuator for HVAC damper control, operating at 220V~ or 100V~ across 50-60 Hz with 4.5 second 90-degree rotation time at 50 Hz. Designed for proportional…
SKU 3G-CBM-06567
Also listed as: SER 20030 · SER-20030
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore
Product Description
Siemens SQN 31 servo motor is a reversible synchronous actuator for HVAC damper control, operating at 220V~ or 100V~ across 50-60 Hz with 4.5 second 90-degree rotation time at 50 Hz. Designed for proportional positioning in building automation systems.
Used in
Common applications for SiemensDistrict 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
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.
