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Product description

The Siemens 6SL3120-2TE21-8AC0 is a SINAMICS-S120 double motor module for two controlled motor axes in compact Booksize C format. The module is supplied from a DC link with 510 to 720 V; Siemens specifies a typical input of 600 V DC and an output of 400 V 3 AC. Each motor output provides 18 A rated output current. The base load current is twice 15.3 A, while twice 24 A is documented for S6 duty with a 40 % duty cycle. This version uses internal air cooling and is designed with IP20 or UL open type protection for installation in a protected control cabinet. At 100 × 380 × 270 mm and 7.7 kg net weight, the module can be clearly assigned to its Booksize performance class. Motor-side connections X1 and X2 are used; shielded motor cables may be up to 70 m long and unshielded cables up to 100 m. The 6SL3120-2TE21-8AC0 is suitable as a type-identical replacement in existing SINAMICS-S120 and SINUMERIK drive systems where two axes, current class, DC-link voltage and cooling concept must be retained. Documented support for extended Safety Integrated functions is relevant when integrating the module into an existing safety concept. Two separate motor outputs in one module save space and simplify compact multi-axis assemblies within the specified current class. The Booksize geometry also supports a clear module arrangement. Before installation, check the complete order number, hardware version, DC link, 24-V electronics supply, motor and encoder connections, DRIVE-CLiQ links, motor parameters, pulse frequency, cooling paths and safety parameter settings against the machine documentation. An adjacent S120 size or a single motor module is not automatically interchangeable despite a similar front view.

Siemens 6SL3120-2TE21-8AC0

Specifications

Manufacturer Siemens
Product series SINAMICS S120
Manufacturer/order/identification number 6SL3120-2TE21-8AC0
Device type double motor module
Axes 2 motor axes
DC-link voltage 510 … 720 V DC
Typical DC input 600 V DC
Output voltage 400 V 3 AC
Rated output current 2 × 18 A
Base load current 2 × 15.3 A
S6 output current 2 × 24 A at 40 % duty cycle
Cooling method internal air cooling
Design Booksize C-Type
Protection rating IP20 / UL open type
Dimensions 100 × 380 × 270 mm
Net weight 7.7 kg
Motor connections X1 and X2
Maximum motor cable 70 m shielded / 100 m unshielded
Control cabinet with PLC modules and automation components
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FAQ

Frequently asked questions

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What axis capacity does the Siemens 6SL3120-2TE21-8AC0 provide?

The double motor module supplies two motor axes with 18 A rated output current each. Base load current is twice 15.3 A; twice 24 A is documented for S6 duty with a 40 % duty cycle.

What matters when replacing this SINAMICS-S120 module?

Check the complete order number, DC-link voltage, both motor outputs, Booksize C design, cooling, X1-/X2 connections, DRIVE-CLiQ, motor parameters and existing safety parameter settings.

Is there a guarantee?

Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.

Please note that the guarantee only applies when the warranty seal is undamaged.

If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.

Further details are provided in the terms and conditions supplied with your quotation.

How quickly do you dispatch and which shipping options are available?

We generally dispatch immediately - in many cases on the same working day. For particularly urgent requirements or machine downtime, we find a suitable solution as quickly as possible and provide a specific delivery window on request.

Express shipping or collection from our premises is also possible, depending on the situation. State your requirements during the ordering process or contact us directly.

We ship worldwide and work with reliable shipping partners, from parcel services to freight forwarding. Freight shipments normally require some preparation so the goods arrive safely and undamaged.

Which payment methods are available?

Payment is normally made by bank transfer against invoice. Payment is due within 10 calendar days of receiving the goods.

As a rule, we offer purchase on account for all customers. In individual cases, such as new customers or particularly high-value components, we may agree advance payment. This decision is made individually and communicated transparently.

Can we return items if they were ordered incorrectly?

Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.

Please note that returns of functioning goods are generally excluded. In justified exceptional cases, we can assess an individual solution, but this is not the standard procedure.

Is there a discount when ordering several items?

For larger order quantities or several items of one type, we can offer individual discounts.

Simply send us a quick enquiry - we check availability and will gladly prepare a tailored quotation with quantity pricing.

Do you also purchase industrial spare parts?

Yes, we also purchase automation components, such as frequency inverters, PLC assemblies, panels, servo motors and CPUs. Components from Siemens, Lenze, Schneider Electric, Control Techniques or Heidenhain are especially sought after, and other brands are also possible.

The process is straightforward: email us an inventory list or overview photos at info@reha-industriekomponenten.de. We calculate a market-based purchase price and send you an offer.

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