Siemens | Booksize externally cooled single-axis motor module
Siemens 6SL3121-1TE28-5AA3 SINAMICS S120 Single Motor Module
An externally cooled S120 module positioned between the TE26 and TE31 power classes for one motor axis.
ManufacturerSiemens
Model6SL3121-1TE28-5AA3
LifecycleProduct cancellation
01
Product Identification
6SL3121-1TE28-5AA3 is a spare-part Single Motor Module for the SINAMICS S120 booksize drive platform. It supplies one motor axis from the common DC link and uses DRIVE-CLiQ for coordinated system communication. The module belongs to the externally cooled AA3 hardware generation and is listed by Siemens in the product-cancellation phase.
02
Engineering Data
| Manufacturer | Siemens |
|---|---|
| Order Number | 6SL3121-1TE28-5AA3 |
| DC Input Class | 600 V DC |
| Motor Output | 400 V, 3 AC |
| Rated Output Current | 85 A |
| Dimensions | 200 x 380 x 226 mm |
| Cooling | External air cooling |
| Degree of Protection | IP20 / UL open type |
| System Interface | DRIVE-CLiQ cable included |
| Product Lifecycle | Product cancellation |
03
Functions
- Converts DC-link energy into one controlled three-phase motor output.
- Coordinates with the S120 control architecture through DRIVE-CLiQ.
- Uses optimized pulse patterns of the documented AA3 generation.
- Routes power-stage heat through the external cooling design.
- Supports safety functions engineered and validated in the complete drive project.
04
Applications
- Single-axis machinery using the corresponding S120 booksize power class.
- Maintenance of externally cooled drive cabinets with the matching module format.
- Production-line spare planning for a cancelled AA3 hardware generation.
- Motion systems that use coordinated DRIVE-CLiQ topology and diagnostics.
- Like-for-like service where the original motor and safety configuration is retained.
05
Lifecycle
- Siemens identifies this exact order number as a cancelled spare part.
- Do not use the nearby TE26 or TE31 class as a dimensional or power substitute.
- Preserve motor, encoder, topology and safety project data before service.
- Inspect the external fan path and cabinet interface while the drive is isolated.
- Validate electrical, thermal and safety behavior before production restart.
