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Siemens 6SL3120-2TE21-8AA3 Double Motor Module side view
Siemens SINAMICS S120 18 A 18 A module rear view
Siemens 6SL3120-2TE21-8AA3 Double Motor Module main view

Siemens 6SL3120-2TE21-8AA3 SINAMICS S120 Double Motor Module 18 A/18 A

6SL3120-2TE21-8AA3 is a Siemens SINAMICS S120 Double Motor Module with two 18 A motor channels, a 600 V DC-link input and 400 V three-phase AC output.

DC-link input
600 V DC
Dual output
2 × 18 A
Motor voltage
400 V 3 AC
Construction
Booksize
Cooling
Internal air cooling
Included
DRIVE-CLiQ cable

Send both axis data sets, the complete MLFB and the S120 topology for compatibility verification.

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  • Delivery from stock
  • In stock really means in stock
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  • Shipped from the China
Product Specifications
Manufacturer Siemens AG
Item number 6SL3120-2TE21-8AA3
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 · DUAL-AXIS POWER
6SL3120-2TE21-8AA3
Double Motor Module · 18 A / 18 A
SIEMENS SPARE PARTBOOKSIZEDRIVE-CLiQ INCLUDED
DUAL CHANNEL RATING
AXIS A
18 A
AXIS B
18 A
DC-LINK INPUT
600 V DC
MOTOR OUTPUT
400 V · 3 AC
TYPE RATING
2 × 9.7 kW
COOLING
Internal air
DUAL-AXIS ROLE
Two motor channels in one booksize module
Shared DC link, independent motor paths
The module converts energy from the SINAMICS S120 DC link into two controlled three-phase motor outputs. Siemens specifies 600 V DC input, 400 V three-phase AC output and rated current of 18 A for each channel. The booksize unit uses internal air cooling and includes a DRIVE-CLiQ cable.
Replace as a system component
Do not select from current alone. Confirm both motors, encoders, axis data sets, hardware version, Control Unit, Safety Integrated functions, DRIVE-CLiQ topology and cabinet cooling.
ENERGY FLOW
One DC link branching to two controlled axes
DC LINK
600 V DC
Common energy source from the configured S120 line-side system.
→
AXIS A
18 A channel
Motor connector X1 with its own motor, encoder and control data.
+
AXIS B
18 A channel
Motor connector X2 with separate application requirements.
TECHNICAL REFERENCE
Current, power and installation data
Rated output current2 × 18 A
Base load current2 × 15.3 A
S6 duty current2 × 24 A
Maximum current2 × 36 A
Type rating2 × 9.7 kW
Pulse frequency4 kHz
Motor connectorsX1, X2
ProtectionIP20 / open type
Two-axis handover
Provide both motor nameplates, encoder types, cable lengths, axis duty cycles, Control Unit details, firmware and the complete DRIVE-CLiQ topology. The two channels should be checked independently.
LIFECYCLE
Exact order number listed as a spare part
Siemens currently describes 6SL3120-2TE21-8AA3 as a spare part. Regional availability and service handling may change. Obtain a current official lifecycle and compatibility check before ordering or migrating.
Required for verification
Exact MLFB and quantity
Hardware and firmware versions
Both motor and encoder data sets
Control Unit and S120 topology
Safety Integrated requirements
Destination and required date
FAQ
Double Motor Module questions
How does it differ from 1TE21-8AA3?
The 2TE version is a Double Motor Module with two 18 A outputs. The 1TE version is a Single Motor Module with one 18 A motor output.
Can one channel be ignored?
The permissible configuration must be verified in the current S120 manuals and project. Do not assume operating arrangements solely from the hardware rating.
Is another 2 × 18 A module a drop-in replacement?
Not automatically. Check construction type, cooling, pulse pattern, safety functions, hardware version and system topology.
RELATED SIEMENS MODELS
Selected automation and drive references
6ES7138-6BA01-0BA0
6ES7505-0RA00-0AB0
6ES7132-6BD20-0BA0
6ES7512-1DK01-0AB0
6GK1503-3CA01
6ES7215-1AG40-0XB0
6ES7288-1CR60-0AA1
6ES7193-4CC30-0AA0
6ES7510-1DK03-0AB0
6ES7288-1ST30-0AA1
6ES7151-8AB01-0AB0
6ES7223-1PL32-0XB0
6ES7518-4FP00-0AB0
6ES7155-6BU00-0CN0
6ES7193-6PA00-0AA0
6ES7954-8LC03-0AA0
6ES7138-4FA05-0AB0
6ES7288-1SR20-0AA0
6ES7313-5BF03-0AB0
6ES7136-6DB00-0CA0
6ES7288-1SR40-0AA1
6GK5005-0GA10-1AB2
6ES7515-2AM01-0AB0
6GK5206-2BS00-2AC2
Dual-axis procurement check
Share both axis configurations so the exact order number, hardware generation and lifecycle position can be reviewed together.
✓ Two-axis data review
✓ Documentation matching
✓ Lifecycle and availability check
✓ Export-ready packing support
SEND AXIS DATA
Official technical references: Siemens Industry Mall comparison data and current Siemens SINAMICS S120 motor-module documentation. Verify exact order-number data and regional lifecycle status at order time.

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