Is the Siemens Servo motor SQN 30 121A3500 available from 3G Electric?

Yes — 3G Electric supplies genuine Siemens products with in-stock availability on common SKUs and worldwide shipping.

How do I get a quote for the Siemens Servo motor SQN 30 121A3500?

Click "Request a Quote" on this page or add the product to your RFQ cart. Our engineers will respond within 24 hours with pricing, lead times, and technical recommendations.

Does 3G Electric provide technical support for servo motors?

Yes, our team of experienced engineers provides full technical support including product selection, installation guidance, commissioning, and after-sales service for all servo motors we distribute.

Siemens Servo motor SQN 30 121A3500 - Servo Motors

Technical Documents

(2)

Complete Solution

Need installation, maintenance, or a bundled quote?

Our engineers can help with product selection, system design, installation, and ongoing service — all from one partner.

Product + Service Bundle QuoteQuote

Quick Inquiry

SiemensServo Motors

Available to Order

Siemens Servo motor SQN 30 121A3500

Siemens SQN 30 reversible synchronous servo motor delivers 1.5 Nm nominal torque with 0.8 Nm holding torque, completing 90° rotation in 4.5 s. Operates at 50/60 Hz with dual supply voltages (220/240 V~ primary…

SKU 3G-CBM-06574

Also listed as: SER 20040 · SER-20040

Brand

Siemens

Item

Servo motor SQN 30 121A3500

Technical Specifications

Siemens

type

Servo motor SQN30 

frequency

50/60 Hz 

motor type

Reversible synchronous motor 

torque holding Nm

0.8

torque nominal Nm

1.5

rotation time 90deg s

4.5

supply voltage primary

220 V~ −15% / 240 V~ +10% 

supply voltage secondary

100 V~ −15% / 110 V~ +10% 

View Full Spec Sheet

Worldwide Shipping

Air & sea freight

Datasheet on Request

Technical specs

1-Day Quote

SG-based team

Qty

WhatsApp Telegram

Create a free account to submit your RFQ and download technical documents.

Not sure this is the right part? Get a recommendation.

Pair with a Service

Installation & Commissioning

Professional setup and verification by our technicians

View

Ongoing Maintenance Plan

Scheduled preventive maintenance for this equipment

View

Product + Service Bundle

Combined quote for equipment, installation, and service

View

Solutions Engineering

Need guidance on product selection or system design?

Contact Our Engineering Team

Siemens Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

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

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.

Browse all Siemens products →Contact our engineers →