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Product description

Siemens 6SE7021-8TP70-Z belongs to the SIMOVERT MASTERDRIVES Motion Control family and is a 6SE70 Compact-PLUS inverter in Booksize construction. The MLFB specifies a 510 to 650 V DC link, a rated output of 7.5 kW and a rated output current of 17.5 A. It is the relevant replacement where an installed system requires the P2 version in this current class. Siemens selection data gives a short-time current of 28.0 A, a rated DC-link current of 20.8 A and power loss of 0.300 kW at 5 kHz. Dimensions are 135 x 360 x 260 mm and weight is 8.9 kg. Additional values include a cooling-air requirement of 0.041 m³/s, a sound-pressure level of 48 dB(A), E-CU 3 x 10 for the DC-link connection, a 10 / 16 mm² motor connection and an auxiliary-current requirement of 1.5 A. The full type number distinguishes this model from 6SE7021-8TP50, 6SE7021-8TB20 and larger 25.5-A units. Its P2 designation matters because several 17.5-A variants are visually and functionally close. The combination of 7.5 kW, 17.5 A and 135-mm width identifies a defined Booksize replacement position in an existing MASTERDRIVES Motion Control drive group. Matching the construction, current class and connection data helps retain the documented cabinet arrangement and system topology. For procurement, Siemens 6SE7021-8TP70-Z should match the rating plate and Siemens 6SE7021-8TP70-Z should remain linked to the 6SE70 record and its 17.5-A stock class.

Siemens 6SE7021-8TP70-Z

Specifications

Manufacturer Siemens
Product series SIMOVERT MASTERDRIVES
Sub-series Motion Control Compact-PLUS P2
Type code 6SE7021-8TP70-Z
Product type Inverter Unit
Construction Booksize / Compact-PLUS
Supply voltage 510-650 V DC
Rated output 7.5 kW
Rated output current 17.5 A
Short-time current 28.0 A
Rated DC-link current 20.8 A
Power loss at 5 kHz 0.300 kW
Dimensions 135 x 360 x 260 mm
Weight 8.9 kg
Cooling-air requirement 0.041 m³/s
Sound-pressure level 48 dB(A)
Auxiliary-current requirement 1.5 A
Control cabinet with PLC modules and automation components
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FAQ

Frequently asked questions

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Is there a warranty?

Yes. We provide a 14-day functional warranty for used items. The component must be functional on arrival, and the warranty applies only while the warranty seal remains undamaged. If a fault occurs within 14 calendar days, please contact us in writing. Depending on availability, we will either provide a replacement or refund the full purchase price after the item has been returned. Further details are set out in the terms and conditions supplied with our quotation.

How quickly do you ship, and which shipping options are available?

We normally dispatch available items immediately and, in many cases, on the same working day. For urgent requirements or machine downtime, we will identify the fastest suitable option and can confirm a specific delivery window on request. Express shipping and collection from our premises are also possible by arrangement. We ship worldwide using reliable parcel and freight carriers; freight shipments may require additional preparation to ensure safe delivery.

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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