Siemens | High-power booksize externally cooled single-axis motor module
Siemens 6SL3121-1TE32-0AA3 SINAMICS S120 Single Motor Module
The discontinued AA3 high-power module has AA4 as its official successor within the external-cooling range.
ManufacturerSiemens
Model6SL3121-1TE32-0AA3
LifecycleDiscontinued with successor
01
Product Identification
6SL3121-1TE32-0AA3 is a discontinued high-power Single Motor Module for one SINAMICS S120 axis. It uses the common DC-link system, external air cooling and DRIVE-CLiQ communication. Siemens identifies 6SL3121-1TE32-0AA4 as the successor, making the relationship important for lifecycle planning without removing the need for a full compatibility review.
02
Engineering Data
| Manufacturer | Siemens |
|---|---|
| Order Number | 6SL3121-1TE32-0AA3 |
| DC Input Class | 600 V DC |
| Motor Output | 400 V, 3 AC |
| Rated Output Current | 200 A |
| Construction | Booksize |
| Cooling | External air cooling |
| System Interface | DRIVE-CLiQ cable included |
| Product Lifecycle | Discontinued |
| Official Successor | 6SL3121-1TE32-0AA4 |
03
Functions
- Supplies one large motor axis from the coordinated S120 DC-link line-up.
- Provides control and diagnostic integration through DRIVE-CLiQ.
- Uses the external cabinet airflow path for power-stage cooling.
- Supports optimized pulse patterns of the AA3 generation.
- Participates in system-level Safety Integrated functions when correctly engineered.
04
Applications
- Maintenance of installed high-power AA3 S120 motor axes.
- Planned shutdown replacement where an exact spare remains required.
- Migration studies evaluating the officially identified AA4 successor.
- Externally cooled drive cabinets retaining the original booksize architecture.
- Lifecycle planning that documents both the legacy and successor order numbers.
05
Lifecycle
- The official Siemens record marks AA3 as discontinued.
- Siemens identifies AA4 as the successor product.
- A successor relationship does not prove drop-in compatibility for every installed project.
- Compare firmware, mechanical interfaces, power connections, cooling and safety data before migration.
- Retain the validated drive archive and perform full commissioning after any hardware change.
