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Product description
Siemens 6SE7021-8TB61 is a Vector Control inverter from the SIMOVERT MASTERDRIVES product range. The compact base unit operates at 510–650 V DC and is documented with 7.5 kW rated power at 400 V. Siemens states 17.5 A rated output current, 15.9 A base-load current and 23.9 A short-time current. Short-time overload is 1.6 × rated output current for 30 s. Rated DC-link current is 20.8 A. At a 2.5 kHz pulse frequency, power loss is specified as 0.16 kW. The device has IP20 protection. According to Siemens, the DC-link fuse is integrated in the inverter. The Siemens catalog states complete external dimensions of 135 × 425 × 350 mm in width, height and depth order and a weight of approximately 12.5 kg. Mechanical values apply to the individual base unit without shipping packaging, connection cables or external cabinet components. The bound stock record additionally states PROFIBUS via a CBP2 module in slot A for the specific offered device. Catalog dimensions and weight remain assigned to base unit 6SE7021-8TB61. Order number, DC range, power and current ratings, enclosure size and protection class together form the product assignment characteristics. Adjacent 6SE70 devices can have different current classes, constructions or terminal positions. Installation space, DC supply, fuse concept, communication board and parameter set form the plant-side comparison characteristics. Additional cables and external components are not included in the dimensional or weight data. The final two specification rows therefore contain only external dimensions and unit weight.
Example image – The item supplied will have the stated manufacturer or type number and the stated condition category. Serial number, manufacturing date, labels, colour, packaging and normal signs of use or storage may differ. Specifications
| Manufacturer | Siemens |
|---|---|
| Product series | SIMOVERT MASTERDRIVES Vector Control |
| Manufacturer/order/identification number | 6SE7021-8TB61 |
| Device type | Vector-control inverter |
| Construction | Compact unit |
| Input voltage | 510–650 V DC |
| Rated power at 400 V | 7.5 kW |
| Rated output current | 17.5 A |
| Base-load current | 15.9 A |
| Short-time current | 23.9 A |
| Short-time overload | 1.6 × rated output current for 30 s |
| Rated DC-link current | 20.8 A |
| Protection rating | IP20 |
| Power loss at 2.5 kHz | 0.16 kW |
| DC-link fuse | Integrated in the inverter |
| Communication | PROFIBUS via CBP2 module in slot A |
| Dimensions | 135 × 425 × 350 mm (W × H × D) |
| Weight | approx. 12.5 kg |
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What are the dimensions and weight of Siemens 6SE7021-8TB61?
The Siemens catalog states external dimensions of 135 × 425 × 350 mm in W × H × D order and an approximate weight of 12.5 kg.
Which current values are documented for Siemens 6SE7021-8TB61?
Documented values are 17.5 A rated output current, 15.9 A base-load current, 23.9 A short-time current and 20.8 A rated DC-link current.
What applies if an item develops a defect within 14 days?
For the condition categories “Used, removed from an installation” and “New, old stock”, the contractual 14-day right of return in the event of a defect applies. The defect must occur within 14 calendar days after delivery and be reported in text form within the same period.
In particular, the REHA tamper-evident seal must remain fully intact and our RMA approval is required before return. In an accepted case, we decide between replacement and refund. Details in Section 11 of the Terms.
Which shipping methods and delivery times are available?
The shipping method, shipping cost and estimated delivery time are confirmed for the specific order. Depending on the item, destination and urgency, we can check parcel, express or freight shipping as well as collection.
A delivery date is binding only if we expressly confirm it as binding.
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The payment terms stated in the checkout or order confirmation apply. Depending on the order and customer, payment is made in advance or against invoice.
International deliveries and deliveries to new customers are generally made against advance payment unless we expressly confirm another payment arrangement.
Can I return an item ordered incorrectly or found incompatible?
No. There is no general B2B right of return, exchange, cancellation or withdrawal. Incorrect or duplicate orders and a lack of suitability or compatibility with the customer’s installation are not covered by the contractual 14-day right of return in the event of a defect. Details in Section 12 of the Terms.
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