Siemens 6SL3120-2TE21-8AC0 SINAMICS S120 Double Motor Module

Recommended Models & Related Products

Line Module Sizing Note: When operating this module at peak current, Siemens documentation notes that a 16 kW Line Module may be insufficient (power consumption can exceed 35 kW depending on operating state). A higher-power Line Module may be necessary .

What's Included

• 1 × Siemens 6SL3120-2TE21-8AC0 Double Motor Module

• 1 × DRIVE-CLiQ Cable

Note: Control Unit, Line Module, motor cables, and DC link busbars are sold separately. A spare part kit (6SL3120-2TE21-8SP0) is also available, which includes the module plus two DC link busbar connectors .

Why Buy From Us?

• In Stock – Ready to ship immediately

• Genuine Siemens Product – Factory original component, PM300 Active status

• Warranty Included – Purchase with confidence

• Technical Support – SINAMICS S120 compatibility assistance available

Frequently Asked Questions (FAQ)

Q1: What is the Siemens 6SL3120-2TE21-8AC0?

It is a Double Motor Module for the SINAMICS S120 drive system in Booksize C-type format. It controls two independent motors (2 × 18 A) from a common DC link, with Extended Safety Integrated functions and internal air cooling .

Q2: What is the difference between C-type and D-type?

The C-type (this item) supports double (2×) overload capability. The D-type (6SL3120-2TE21-8AD0) supports triple (3×) overload capability for more demanding applications .

Q3: What is the rated current of this module?

The rated output current (IN) is 2 × 18 A, with a base load current (IH) of 2 × 15.3 A and peak current (S6, 40%) of 2 × 36 A .

Q4: What is the type power rating?

2 × 9.7 kW based on IN at DC 600 V and 4 kHz pulse frequency .

Q5: Does this module support safety functions?

Yes. It supports Extended Safety Integrated functions up to SIL 2 (IEC 61508) and PL d / Category 3 (EN ISO 13849-1) .

Q6: What cooling method does it use?

Internal air cooling with an integrated fan .

Q7: What are the dimensions and weight?

Dimensions are 100 × 380 × 270 mm (W × H × D). Net weight is approximately 7.7 kg .

Q8: Is this a genuine Siemens product?

Yes. The product lifecycle status is PM300: Active Product, and the country of origin is Germany .

Q9: What is the difference between this and the 6SL3120-2TE21-0AA4?

The 0AA4 variant has a lower current rating (2 × 9 A). This 8AC0 variant has 2 × 18 A output current .

Q10: What should I verify before ordering?

Always verify the exact part number (6SL3120-2TE21-8AC0 for C-type with double overload), confirm your motor current requirement (2 × 18 A), ensure your DC link voltage matches (510–720 V), check that your Line Module has sufficient power for peak current operation, and verify whether you need the D-type for triple overload applications .