Siemens 6SL3120-2TE15-0AD0 SINAMICS S120 double motor module for industrial drive cabinets

Evidence-backed system role for 6SL3120-2TE15-0AD0, a documented SINAMICS S120 double motor module rated at 5 A per axis.

Documented module function

Rebuilt from individual evidence

Siemens documents 6SL3120-2TE15-0AD0 as a double motor module in the SINAMICS S120 booksize Motor Modules family.

The documented variant is rated at 5 A per axis and uses internal air cooling; these values identify the power-stage variant to match against the installed cabinet.

In the system, it sits between the shared DC link and the connected motor axes, where its Motor Module role supports controlled motion power.

Exact reference: 6SL3120-2TE15-0AD0
Category: Drives / VFD
Evidence checked: 2026-09-12

System role

This section explains what the product does and where it acts in the surrounding system.

Function: Drives the connected motor axes as a SINAMICS S120 power stage.
System position: Sits between the shared SINAMICS S120 DC link and the connected motor axes in the drive cabinet.
Upstream / inputs: Receives DC-link energy and motion commands from the upstream SINAMICS S120 control path.
Downstream / outputs: Sends switched three-phase motor power to the connected motor axes.
Limitations: Unknown: installed topology, firmware compatibility, wiring, and unit condition.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Siemens lists 6SL3120-2TE15-0AD0 as a double motor module in the SINAMICS S120 booksize Motor Modules family.
Confidence: high
- cache.industry.siemens.com — retrieved 2026-09-12; high confidence
The manufacturer evidence gives 6SL3120-2TE15-0AD0 a 5 A per axis rating and internal air cooling.
Confidence: high
- cache.industry.siemens.com — retrieved 2026-09-12; high confidence
- www.mroelectric.com — retrieved 2026-09-12; medium confidence

Inferences

In the drive cabinet, 6SL3120-2TE15-0AD0 acts as the power-conversion stage between the shared DC link and the connected motor axes.
Confidence: medium
Rationale: The exact Motor Module classification, rated current, and cooling variant establish the module's power-stage position in the SINAMICS S120 architecture.
- cache.industry.siemens.com — retrieved 2026-09-12; high confidence
- www.mroelectric.com — retrieved 2026-09-12; medium confidence

Unknowns

Unknown: installed topology, firmware compatibility, wiring, and unit condition.
Confidence: low
Missing evidence: An installed-system inspection and current unit test were not available in the individual lookup.

System position diagram

Shared DC link and SINAMICS S120 control path connect through 6SL3120-2TE15-0AD0 to the connected motor axes. — The double motor module sits between the shared DC link and the connected motor axes.

View Mermaid source

flowchart LR
  dc[Shared DC link] --> module[6SL3120-2TE15-0AD0]
  control[SINAMICS S120 control path] --> module
  module --> motor[connected motor axes]

View diagram labels

Nodes: Shared DC link; 6SL3120-2TE15-0AD0 Motor Module; connected motor axes
Edges: DC-link energy reaches the module; Switched motor power leaves the module

Next action

Use this reference when the installed SINAMICS S120 cabinet requires the documented double motor module and 5 A per axis rating.

Check the complete nameplate, cabinet topology, firmware, wiring, and motor connections before repair or replacement.

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