VFD vs Servo Drive: Key Differences
A side-by-side comparison of VFD and servo drive motor type, feedback, dynamic response, overload rating, cost, and applications for industrial engineers.
- Part number
- 6SL3120-2TE21-0AD0
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· From Türkiye
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SINAMICS S120Siemens 6SL3120-2TE21-0AD0 SINAMICS S120 Double Motor Module 2x9A Booksize
SINAMICS S120 double motor module, 2x9A output, 400V, Booksize D-type.
Description
About the 6SL3120-2TE21-0AD0
About the 6SL3120-2TE21-0AD0
The Siemens 6SL3120-2TE21-0AD0 is a SINAMICS S120 double motor module in Booksize D-type format, converting a 510-720 V DC link to two independent 3-phase 400 V outputs rated 9.0 A each, for driving two motors from a single shared infeed. It includes an integrated DRIVE-CLiQ cable and supports the Extended Safety Integrated functions.
Selection Notes
The double-axis layout is the reason to choose this module over a single motor module: two 9 A outputs share one DC-link connection and one DRIVE-CLiQ topology slot, which cuts Book Size rack width on machines with two similarly sized axes. The Extended Safety Integrated support lets both axes implement STO/SS1-type safety functions without an external safety relay. Because Imax is limited to 27 A per axis against a 9 A rated current, this module suits intermittent-duty axes rather than continuous full-load running near the overload ceiling.
Applications
Drives two coordinated low-power axes, such as gantry or pick-and-place servo pairs, from a single SINAMICS S120 Booksize line module in machine tool and packaging applications.
Specification
Full specification
Rated data 13
| DC link voltage | DC 510 ... 720 V |
|---|---|
| Electronics power supply | DC 24 V -15 % / +20 % |
| Current demand, max. | 0.90 A |
| DC-link current Id | 22.0 A |
| Output current: Rated value IN | 9.0 A |
| Output current: Base load current IH | 7.7 A |
| Output current: For S6 duty (40%) IS6 | 12.0 A |
| Output current: Imax | 27.0 A |
| Type rating: Based on IN | 4.8 kW |
| Type rating: Based on IH | 4.1 kW |
| Current carrying capacity: DC link busbars | 100 A |
| Current carrying capacity: 24 V busbars | 20 A |
| DC link capacitance | 220 µF |
Ambient conditions 4
| Installation altitude (without derating) | 1,000 m (3,281 ft) |
|---|---|
| Cooling 8) | Internal air cooling |
| Cooling air requirement | 0.009 m³/s |
| Ambient temperature: During operation | 0 ... 40 °C (32 ... 104 °F) |
Connections 4
| Motor end: Version | connector (X1, X2) |
|---|---|
| PE connection | M5 screw |
| Max. motor cable length: Shielded | 50 m (164 ft) |
| Max. motor cable length: Unshielded | 75 m (246 ft) |
Show all 41 specifications ↓ Show less ↑20 more values in Identification, Standards, Mechanical data, General tech. specifications, Logistics.
Identification 6
| Part number | 6SL3120-2TE21-0AD0 |
|---|---|
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| EAN | 4034106439712 |
Standards 2
| Compliance with standards | CE, cULus |
|---|---|
| Safety Integrated | SIL 2 acc. to IEC 61508, PL d acc. to EN ISO 13849-1, Category 3 acc. to EN ISO |
Mechanical data 6
| Line side: Width | 50.00 mm (1.97 in) |
|---|---|
| Line side: Height | 380.00 mm (14.96 in) |
| Line side: Depth | 270.00 mm (10.63 in) |
| Line side: Degree of protection | IP20 / UL open type |
| Line side: Type of construction | Booksize |
| Line side: Net weight | 4.7 kg (10.36 lb) |
General tech. specifications 2
| Sound pressure level (1m) | 60.0 dB |
|---|---|
| Page 1 of 1 | Generated Sun Nov 1 04:04:57 CET 2026 |
Logistics 4
| Shipping weight | 5.2 kg |
|---|---|
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
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Quick answers
Questions about the 6SL3120-2TE21-0AD0
What is the rated current of 6SL3120-2TE21-0AD0?
The rated current of 6SL3120-2TE21-0AD0 is 9.0 A.
Which supply voltage is 6SL3120-2TE21-0AD0 rated for?
The rated operational voltage of 6SL3120-2TE21-0AD0 is 400 V AC.
What motor power is 6SL3120-2TE21-0AD0 rated for?
The rated motor power of 6SL3120-2TE21-0AD0 is 2 × 4.8 kW.
What is the HS code of 6SL3120-2TE21-0AD0 for customs?
The tariff (HS) code on file for 6SL3120-2TE21-0AD0 is 85044087.
What is the EAN of 6SL3120-2TE21-0AD0?
The EAN (GTIN) of 6SL3120-2TE21-0AD0 is 4034106439712.
Where does 6SL3120-2TE21-0AD0 ship from, and how fast?
6SL3120-2TE21-0AD0 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Guides
Guides for servo drives
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Series
Siemens SINAMICS S120
- Brand
- Siemens
- Series
- SINAMICS S120
