Siemens 6SL3120-2TE21-8AC0 SINAMICS S120 C-Type Double Motor Module
The active C-type design supplies two 18 A axes with internal air cooling and a 100 mm booksize width.
Product Profile
Siemens 6SL3120-2TE21-8AC0 is an active SINAMICS S120 C-type Double Motor Module. It connects to a 600 V DC nominal link and provides two 400 V three-phase outputs rated 18 A each. The 100 mm booksize unit uses internal air cooling, optimized pulse patterns and extended Safety Integrated support, and the official product description includes a DRIVE-CLiQ cable. The C-type suffix is part of the engineering identity and must be checked separately from the AA3 and D-type AD0 variants.
Technical Data
| Manufacturer | Siemens |
|---|---|
| Article Number | 6SL3120-2TE21-8AC0 |
| Product Family | SINAMICS S120 |
| Product Type | C-type Double Motor Module |
| Construction | Booksize C type |
| Cooling | Internal air cooling |
| Nominal DC Input | 600 V DC |
| Motor Output | 400 V, 3-phase AC |
| Rated Output Current | 18 A / 18 A |
| Type Rating | 2 x 9.7 kW |
| Construction Width | 100 mm |
| Communication | DRIVE-CLiQ cable included |
| Lifecycle | PM300 Active Product |
System Role
Drive-System Functions
- Combines two 18 A motor power sections in one C-type module.
- Uses the current 100 mm booksize construction identified by Siemens.
- Provides internally forced airflow for the power section.
- Uses optimized pulse patterns for the supported S120 operating modes.
- Interfaces with the drive system through DRIVE-CLiQ.
- Supports the extended Safety Integrated architecture when configured with approved components.
Exact Product Identity
- Manufacturer: Siemens
- Model: 6SL3120-2TE21-8AC0
- Product Type: SINAMICS S120 booksize C-type Double Motor Module
- Status: Active product
Compatibility
- Match the full 6SL3120-2TE21-8AC0 order number and C-type construction.
- Confirm the Control Unit, firmware and SINAMICS project support this current hardware generation.
- Verify the 100 mm cabinet position, cooling-air path and neighboring modules.
- Check motor connectors, DRIVE-CLiQ wiring, DC link and 24 V bus before exchange.
- Treat migration from AA3 or AD0 as an engineered change rather than an automatic suffix substitution.
Applications
- Active two-axis SINAMICS S120 systems with 18 A per motor output.
- Machine-tool, packaging and coordinated-motion cabinets using booksize drive groups.
- New service stock for installations standardized on the C-type module.
- Cabinets requiring two axes in a 100 mm power-module position.
- Modernization work supported by a reviewed drive and safety configuration.
FAQ
What does the C in the 8AC0 suffix identify?
Siemens identifies 6SL3120-2TE21-8AC0 as the booksize C-type design.
What is the rated current of each 8AC0 motor output?
Each of the two outputs is rated 18 A.
How wide is the C-type Double Motor Module?
The Siemens catalog identifies a 100 mm construction width.
Is 6SL3120-2TE21-8AC0 an active product?
Yes. Siemens Industry Mall lists it as PM300 Active Product.
Does matching 18 A/18 A make AA3 and AC0 automatically interchangeable?
No. Hardware generation, construction, connectors, firmware and Safety Integrated configuration must be reviewed.
Which cabinet condition should be checked for the AC0 unit?
Verify the 100 mm mounting position and the specified internal-air-cooling path.
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