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Siemens Servo motor SQM 56 687A2Z3 - Servo Motors
SiemensServo Motors

Siemens Servo motor SQM 56 687A2Z3

Siemens SQM 56 servo motor delivers reversible synchronous actuation with 40 Nm maximum torque and 10–90 s rotation time. Features 14 mm keyway shaft for damper and valve control applications in HVAC and building…

SKU 3G-CBM-06551

Brand
Siemens
Item
Servo motor SQM 56 687A2Z3
Part Number
687A2Z3
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
Manufacturer Part Number
687A2Z3
type
Servo motor
model
SQM 56 687A2Z3
max torque
40 Nm
motor type
Reversible synchronous
rotation time
10-90 s
output shaft type
Single output with keyway DIN 6885
output shaft diameter
14 mm

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Siemens SQM 56 servo motor delivers reversible synchronous actuation with 40 Nm maximum torque and 10–90 s rotation time. Features 14 mm keyway shaft for damper and valve control applications in HVAC and building automation systems.

Frequently Asked Questions

What is the Siemens SQM 56 687A2Z3 servo motor used for?

The Siemens SQM 56 687A2Z3 servo motor is used for positioning air or gas dampers in medium to large oil or gas burners. It regulates combustion air, gas, and oil flow based on load, typically in HVAC and building automation systems, working with 3-position or progressive controllers.

What are the specifications of the Siemens SQM 56 687A2Z3 servo motor?

The Siemens SQM 56 687A2Z3 is a reversible synchronous servo motor with 40 Nm maximum torque and rotation time from 10 to 90 seconds. It has a single output shaft with a 14 mm keyway per DIN 6885, designed for damper and valve control in HVAC applications.

Where to buy the Siemens SQM 56 687A2Z3 in Singapore?

You can source the Siemens SQM 56 687A2Z3 servo motor through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this Siemens servo motor for HVAC and burner applications.

How to install the Siemens SQM 56 687A2Z3 servo motor?

Installation must be done by qualified personnel. Ensure the power supply is fully disconnected before working near terminals. Mount the motor securely, wire according to local regulations, and check cable conformity. The plastic cover allows safe cam adjustment under mains voltage. 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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