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Home>SIEMENS>Siemens 6SE7023-2ES87-2DA1 SIMOVERT MASTERDRIVES Braking Unit
Siemens 6SE7023-2ES87-2DA1 SIMOVERT MASTERDRIVES Braking Unit

Siemens 6SE7023-2ES87-2DA1 SIMOVERT MASTERDRIVES Braking Unit Item NO.: 2906810

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Product Name Siemens 6SE7023-2ES87-2DA1 SIMOVERT MASTERDRIVES Braking Unit
Item NO. 2906810
Weight 0.1 kg = 0.2205 lb = 3.5274 oz
Category SIEMENS
Brand SIEMENS
Creation Time 2026-09-09

Siemens 6SE7023-2ES87-2DA1 SIMOVERT MASTERDRIVES Braking Unit
MASTERDRIVES Braking

Siemens 6SE7023-2ES87-2DA1 SIMOVERT MASTERDRIVES Braking Unit

20 kW P20 braking power30 kW P3 braking power774 V DC selection threshold

Product Overview

Siemens 6SE7023-2ES87-2DA1 is a SIMOVERT MASTERDRIVES braking unit identified in the Siemens application documentation for operation with a MICROMASTER 440 FX/GX drive system. It controls the dissipation path for regenerative DC-link energy through an assigned braking resistor.

The official selection table assigns 20 kW P20, 30 kW P3 and 5 kW continuous braking power PDB to this order number. These values apply at the 774 V DC response threshold set at the factory.

The same table pairs the unit with braking resistor 6SE7023-2ES87-2DC0 and specifies two 3NE4102 fuses. Resistor dimensions and resistance are listed for the assigned resistor, not for the braking unit itself.

20 kWP20 braking power
30 kWP3 braking power
5 kWContinuous PDB
774 V DCFactory response threshold used by the table

Product Specifications

Specification Details
Brand Siemens
Model 6SE7023-2ES87-2DA1
Product Type SIMOVERT MASTERDRIVES Braking Unit
Country of Origin Germany
Specification Details
P20 braking power 20 kW
P3 braking power 30 kW
Continuous braking power PDB 5 kW
Selection-table response threshold 774 V DC, factory setting
Assigned braking resistor 6SE7023-2ES87-2DC0
Assigned resistor resistance 20 Ω
Assigned resistor dimensions 485 × 485 × 305 mm (W × H × D)
Required fuse type 3NE4102; two fuses required

Braking Performance

Three duty-related power values

The Siemens selection table separates short-duration and continuous braking duties. For 6SE7023-2ES87-2DA1, P20 is 20 kW, P3 is 30 kW and PDB is 5 kW.

  • Use the duty-related value that corresponds to the braking calculation.
  • The table values are tied to the 774 V DC factory response threshold.
  • Do not substitute the associated resistor ratings for braking-unit dimensions or weight.
Braking Performance technical illustrationClick to enlarge
Braking Performance technical illustration

Installation and Component Pairing

Assigned resistor and fuse set

Siemens pairs this braking unit with resistor 6SE7023-2ES87-2DC0. The resistor is 20 Ω and is listed at 485 × 485 × 305 mm. Two 3NE4102 fuses are specified.

  • Confirm the exact braking unit and resistor order numbers as a pair.
  • Install the two specified fuses in accordance with the Siemens application circuit.
  • Treat the resistor dimensions as resistor data only.

Frequently Asked Questions

What is Siemens 6SE7023-2ES87-2DA1?

It is a SIMOVERT MASTERDRIVES braking unit for a braking arrangement used with MICROMASTER 440 FX/GX.

Which braking powers are assigned to Siemens 6SE7023-2ES87-2DA1?

P20 is 20 kW, P3 is 30 kW and continuous PDB is 5 kW.

Which braking resistor is paired with Siemens 6SE7023-2ES87-2DA1?

The assigned braking resistor is 6SE7023-2ES87-2DC0.

Which fuse arrangement is specified for Siemens 6SE7023-2ES87-2DA1?

The selection requires two 3NE4102 fuses.

Do the 485 × 485 × 305 mm dimensions belong to Siemens 6SE7023-2ES87-2DA1?

No. Those dimensions belong to the assigned 6SE7023-2ES87-2DC0 braking resistor, not the braking unit.

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