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Siemens 6SL3120-1TE21-8AA3 SINAMICS S120 motor module front view
Siemens SINAMICS S120 18 A booksize motor module side view
Siemens 6SL3120-1TE21-8AA3 power module housing view

Siemens 6SL3120-1TE21-8AA3 SINAMICS S120 Single Motor Module 18 A

6SL3120-1TE21-8AA3 is a Siemens SINAMICS S120 Single Motor Module in booksize format, designed for a 600 V DC link and providing a 400 V three-phase AC motor output rated at 18 A.

DC-link input
600 V DC
Motor output
400 V 3 AC
Rated current
18 A
Construction
Booksize
Cooling
Internal air cooling
Included
DRIVE-CLiQ cable

Send the complete MLFB, hardware version and drive-system configuration for compatibility and lifecycle verification.

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  • Delivery from stock
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  • Shipped from the China
Product Specifications
Manufacturer Siemens AG
Item number 6SL3120-1TE21-8AA3
Country of Origin Germany
Lead Time Spare-part availability on request; verify region and order date
After-Sales Support Siemens spare part delivery, repair and exchange services
HS Code / Commodity code 85044086
FAQ

Quotes are valid for 30 days from the day the quote is received unless stated otherwise at the time of quotation.

Yes,we offer one year warranty for all new products.

Yes. We worked with FEDEX/DHL/TNT/UPS/ allowing us to provide swift global delivery of parts to any corner of the world.

Normally 3-5 working days,some remote areas 5-7 days more.

Product information
SINAMICS S120 · DRIVE POWER STAGE
6SL3120-1TE21-8AA3
Single Motor Module · Booksize · 18 A
SIEMENS SPARE PARTINTERNAL AIR COOLINGDRIVE-CLiQ INCLUDED
POWER CONVERSION
DC-link input
600 V DC
 
Motor-side output
400 V · 3 AC
RATED CURRENT
18 A
RATED OUTPUT REFERENCE
9.7 kW
FORM FACTOR
Booksize
COMMUNICATION
DRIVE-CLiQ
MODULE ROLE
The motor-side power stage in an S120 drive line-up
Single-axis motor module
The 6SL3120-1TE21-8AA3 converts energy from the SINAMICS S120 DC link into a controlled three-phase motor supply. Siemens specifies a 600 V DC input, 400 V three-phase AC output and 18 A rated current. The booksize module uses internal air cooling and is supplied with a DRIVE-CLiQ cable.
Configuration matters
A matching current rating alone does not establish compatibility. Verify the complete MLFB, hardware version, Control Unit, DC-link arrangement, motor, encoder, safety functions and cabinet cooling before replacement.
POWER CHAIN
From the common DC link to motor torque
01 · RECEIVE
DC-link energy
The module receives a nominal 600 V DC supply from the configured S120 line-side system.
→
02 · CONVERT
Controlled inverter
Optimized pulse patterns generate the motor-side three-phase output for the selected drive configuration.
→
03 · DRIVE
Motor output
The motor connection supplies 400 V three-phase AC at an 18 A module rating.
INTEGRATION CHECK
Six items to verify before installation
DC-link architecture
Confirm the configured 600 V DC S120 line-up and power distribution.
Motor data
Match rated current, motor data and overload requirements.
Hardware version
Check the module label and existing project documentation.
DRIVE-CLiQ topology
Verify cable routing and component topology.
Safety functions
Validate the required Safety Integrated scope in the complete system.
Cooling clearance
Retain the specified cabinet airflow and installation clearances.
LIFECYCLE POSITION
Officially identified as a spare part
The current Siemens comparison record describes 6SL3120-1TE21-8AA3 as a spare part. Availability and service handling can vary by region and date. Request a current Siemens lifecycle and compatibility check before committing to a replacement strategy.
Procurement handover
Include the full MLFB
Photograph the rating label
State hardware and firmware versions
Share the S120 topology
List motor and encoder data
Confirm destination and required date
FAQ
Common replacement questions
Is 6SL3120-1TE21-8AA3 active?
Siemens currently describes the exact order number as a spare part. Confirm present regional availability and service status at quotation time.
Can another 18 A module replace it?
Not automatically. Mechanical type, pulse pattern, Safety Integrated support, DRIVE-CLiQ, hardware version and project compatibility must all be reviewed.
What should I send for a model check?
Send the full nameplate, serial and hardware data, Control Unit, motor and encoder information, drive topology and required safety functions.
RELATED SIEMENS MODELS
Selected drive and automation references
6ES7134-6HD01-0BA1
6ES7193-4CD30-0AA0
6ES7972-0AA02-0XA0
6ES7138-4DB03-0AB0
6ES7954-8LP02-0AA0
6ES7522-1BH01-0AB0
6ES7215-1HG40-0XB0
6ES7193-4CB30-0AA0
6ES7134-4FB01-0AB0
6SL3210-5FE12-0UA0
6ES7142-3BF00-0XA0
6ES7231-5PA30-0XB0
6ES7155-6AU00-0BN0
6ES7138-4FA04-0AB0
6ES7953-8LG11
6EP1437-3BA10
6ES7505-0RA00-0AB0
6GK1503-3CB00
6ES7193-6BP60-0DA0
6ES7193-6AR00-0AA0
6ES7288-3AQ04-0AA0
6ES7954-8LC03-0AA0
6ES7216-2BD23-0XB8
6ES7241-1AH32-0XB0
Drive-system verification
We can support availability checking, documentation matching, lifecycle review and an MLFB cross-check against your SINAMICS topology.
✓ Exact order-number review
✓ Hardware-version check
✓ Motor and encoder context
✓ Export-ready packing support
SEND DRIVE DATA
Official technical references: Siemens Industry Mall comparison data, Siemens SINAMICS S120 documentation and Siemens Industry Online Support. Product and lifecycle information should be verified for the exact order number and region at order time.

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