Siemens 6SE7021-6CS87-2DA0 SIMOVERT MASTERDRIVES Braking Unit 5 kW
Siemens 6SE7021-6CS87-2DA0 SIMOVERT MASTERDRIVES Braking Unit 5 kW
Part number 6SE7021-6CS87-2DA0
Also written as 6SE70216CS872DA0·6SE7 021-6CS87-2DA0
Niedriger Lagerbestand: 1 verbleibend
The Siemens 6SE7021-6CS87-2DA0 is a SIMOVERT braking unit (brake chopper) for the SIMOVERT MASTERDRIVES MC series. It switches an external braking resistor across the DC link to dissipate regenerative energy during dynamic braking. The rating plate gives a chopper rating P20 of 5 kW, a threshold voltage of 387 V, a chopper current Imax/Irms of 19.4 / 8 A and a minimum resistor of 20 Ω -10%. Production state F, made in Germany. Used unit.
Specifications
| Manufacturer | Siemens |
| Order number | 6SE7021-6CS87-2DA0 |
| Product | Braking unit (Bremseinheit) |
| Series | SIMOVERT MASTERDRIVES MC |
| Chopper rating P20 | 5 kW |
| Threshold voltage | 387 V |
| Chopper current Imax / Irms | 19.4 / 8 A |
| Minimum resistor | 20 Ω -10% |
| Production state | F |
| Country of origin | Germany |
| Residual voltage warning | Hazardous voltage remains for 5 minutes after disconnecting supply |
| Condition | Used |
| Warranty | 30 days |
Condition & testing
Used. Supplied as pictured; the photos show the actual unit and its rating plate, and the ratings listed here are taken from that plate. Unit only.
Compatibility
SIMOVERT MASTERDRIVES, MC series
What's included
Braking unit only
Before you order
- Match the full order number 6SE7021-6CS87-2DA0 and production state F against your existing unit.
- The external braking resistor is not included. The plate gives a minimum resistor of 20 Ω -10%; the resistor must not fall below this.
- Confirm that the 387 V threshold voltage suits the DC-link voltage of your SIMOVERT MASTERDRIVES converter.
- Hazardous voltage remains for 5 minutes after the supply is removed; wait before handling.
Compatible & Related
FAQs
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Yes. Every part sold by Samonde is professionally tested by our technicians before shipping. We source directly from decommissioned industrial equipment, authorized distributors, and certified surplus stock. Each item comes with a 30-day warranty.
Do you offer warranties on industrial spare parts?
Every part comes with a 30-day warranty from the date of delivery. If a part does not work as described within those 30 days, we replace it or refund you in full, and we pay the return shipping.
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Yes. If you need a specific Siemens, Heidenhain, Fanuc, or other industrial part that is currently out of stock, contact us with the part number. Our sourcing team across Europe can usually locate hard-to-find automation components within 5-10 business days.
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Siemens 6SE7021-6CS87-2DA0 SIMOVERT MASTERDRIVES Braking Unit 5 kW