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Product description

The Siemens 6SE7028-0ES87-2DA1 is a braking unit from the SIMOVERT MASTERDRIVES series in Compact Plus design. It operates on a 510–650 V DC link and has IP20 protection. Siemens documents 50 kW P20 rated power, 40 A RMS current and a voltage limit of 757 V. The unit controls the external braking resistor when electrical energy is returned to the DC link during deceleration. Order number 6SE7028-0ES87-2DC0 with 8 Ω is specified as the associated braking resistor. For power wiring, the technical table lists 10 mm² copper or AWG 6 together with DC-link fuse 3NE4121. The Siemens selection table assigns external dimensions of 90 × 425 × 350 mm in width, height and depth order to the exact order number. The braking unit weight is listed as approximately 11 kg. These mechanical manufacturer values refer to the individual braking unit, not the external braking resistor, shipping packaging or other cabinet accessories. Resistor 6SE7028-0ES87-2DC0 has its own substantially larger dimensions and is not included in the unit dimensions. Complete order number, DC voltage range, P20 power, RMS current, resistance and fuse are jointly relevant to spare-part identification. Other power ratings in the braking-unit family use different enclosure widths, resistors and fusing. The Compact Plus version belongs in a suitable cabinet with matching connection positions, contact protection and heat dissipation. Width, height, depth and weight provide the mechanical data for installation space, transport and handling. The identity is limited exclusively to Siemens 6SE7028-0ES87-2DA1.

Siemens 6SE7028-0ES87-2DA1 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

Unless expressly confirmed, technical information is provided to identify the device type. The complete manufacturer or type number is decisive.

Manufacturer Siemens
Product range SIMOVERT MASTERDRIVES
Manufacturer / order / identification number 6SE7028-0ES87-2DA1
Device type Braking unit
Design Compact Plus
Degree of protection IP20
Rated power P20 50 kW
Voltage limit 757 V
Rated DC voltage 510 to 650 V DC
RMS current 40 A
Matching braking resistor 6SE7028-0ES87-2DC0
Resistance 8 Ω
Copper conductor size 10 mm²
Conductor size AWG 6
DC-link fuse 3NE4121
Dimensions 90 × 425 × 350 mm (W × H × D)
Weight approx. 11 kg
Control cabinet with PLC modules and automation components
Industrial production environment

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FAQ

Frequently asked questions

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What are the dimensions and weight of the Siemens 6SE7028-0ES87-2DA1?

The Siemens selection table specifies external dimensions of 90 × 425 × 350 mm and an approximate weight of 11 kg.

Which braking resistor belongs with the Siemens 6SE7028-0ES87-2DA1?

The documented external braking resistor is 6SE7028-0ES87-2DC0 with 8 Ω; it is not included in the unit dimensions.

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.

Which payment terms apply?

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.

Can I request individual pricing for several items?

You may request an individual quotation for several items or larger quantities. We then check availability and pricing for the specific requirement; there is no entitlement to a quantity discount. Open the quick enquiry.

Do you also purchase industrial spare parts?

Yes. You can offer us automation and drive components for purchase. Please provide complete type numbers, quantities, condition details and photographs where possible.

After review, we will tell you whether a purchase is possible and on which terms. Learn more about selling industrial stock.

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