Siemens 6SL3120-1TE21-8AA1 SINAMICS 18 A Single Motor Module
First-generation 18 A internal-air-cooled module whose official successor is 6SL3120-1TE21-8AA3.
01Technical Summary
Siemens 6SL3120-1TE21-8AA1 is a legacy SINAMICS Single Motor Module with a 600 V DC nominal input class and a 400 V three-phase, 18 A output. The original product description identifies internal air cooling and an included DRIVE-CLiQ cable. Siemens cancelled this article on 5 December 2007 and names 6SL3120-1TE21-8AA3 as its successor. Because the AA1 generation predates the later optimized-pulse and extended-safety descriptions, replacement work should preserve the installed drive project and verify hardware generation rather than treating all 18 A booksize modules as identical.
02Specifications
| Manufacturer | Siemens |
|---|---|
| Article Number | 6SL3120-1TE21-8AA1 |
| Product Type | SINAMICS Single Motor Module |
| Nominal Input Class | 600 V DC |
| Output Class | 400 V, 3-phase AC |
| Rated Output Current | 18 A |
| Cooling | Internal air cooling |
| Supplied Connection | DRIVE-CLiQ cable included |
| Lifecycle | Cancelled product |
| Cancellation Date | 5 December 2007 |
| Official Successor | 6SL3120-1TE21-8AA3 |
03Features
Operating Characteristics
- Provides one inverter output for a motor axis in an early SINAMICS modular drive system.
- Uses internal air cooling in the original 18 A article configuration.
- Includes a DRIVE-CLiQ cable according to the Siemens product description.
- Retains value as an exact spare where the installed machine depends on the AA1 hardware generation.
- Carries a Siemens-defined successor path rather than an unspecified aftermarket cross-reference.
- Requires generation-aware commissioning because later AA variants introduce different overload and connection characteristics.
Product Identity
- Manufacturer: Siemens
- Model: 6SL3120-1TE21-8AA1
- Product Type: Legacy SINAMICS internal-air-cooled Single Motor Module
- Status: Cancelled product; spare part
04Compatibility
- Confirm that the installed nameplate ends in 8AA1; do not identify the module only by its 18 A current class.
- Preserve the original Control Unit project, firmware information, power-unit code and motor data before removal.
- Check the DC-link architecture, motor connector, DRIVE-CLiQ topology and cabinet cooling arrangement.
- Verify whether the machine safety concept relies on functions not described for this early article generation.
- Assess the successor 8AA3 and any later migration stages with Siemens documentation and the actual application.
- Use the official 5.698 kg commercial weight only for logistics; it does not establish mechanical interchangeability.
05Replacement
- The product was cancelled by Siemens effective 5 December 2007.
- Siemens identifies 6SL3120-1TE21-8AA3 as the immediate successor.
- A later 18 A module must still be checked for overload capability, motor connection, power-unit code, firmware and Safety Integrated behavior.
- Photograph the complete nameplate and capture the drive project, parameters, option data and connector layout before replacement.
- Perform controlled startup and validate current limits, motor rotation, encoder feedback, braking, interlocks and the machine safety sequence.
06FAQ
Why must the AA1 suffix be preserved when sourcing this module?
AA1 identifies an early hardware generation. Later 18 A articles have different lifecycle, overload and connection details even though the headline current is the same.
What successor does Siemens name for 6SL3120-1TE21-8AA1?
The Siemens product record names 6SL3120-1TE21-8AA3 as the successor.
When was this article cancelled?
Siemens lists 5 December 2007 as the effective cancellation date.
Does the AA1 product description include DRIVE-CLiQ?
Yes. The official description states that a DRIVE-CLiQ cable is included.
Is the 5.698 kg value a mechanical interchangeability guarantee?
No. It is the official commercial net weight; connector geometry, hardware generation and cabinet details must be checked separately.
What should be backed up before removing an installed AA1 module?
Save the drive project and parameters, and record the nameplate, power-unit code, firmware, motor data, wiring, feedback and safety configuration.
+Recommended Models
| ABB 2CDG110072R0011 | iv6v6 | BK5210 |
| C-BUS2 | HD3MDIPX | 1763-L16BWA |
| EPX-41D4 | HMT335 | MT1963-1002 |
| ABB Tb521-eth 1sap112100R0170 | Comelit Bus 1236 | R134a 067N5019 |
| RH390 | 1756-OW16I | 3613-0001 TD-35 |
| 61-000163-02 | GE NMTCV2 REF. 124901 | Alnor 275 |
| VR7430-2DRDT | 6075BKN00000 8000-501-02 | TPMC-8L-FPW-T-NB |
| 7TCA085450R0026 | LTA600QD-SPL | IQE31-1201U50034 |
| CDAU-01/01 | GPSK-1 513020 | 1756-PSCA2 |
| 2201-85155-002 | Fg5965-11 | R6010 |
