6SE7034-6EE85-0AA0 Siemens MASTERDRIVES rectifier unit

Siemens identifies 6SE7034-6EE85-0AA0 as a MASTERDRIVES rectifier unit that supplies a common DC link to connected drive inverters.

System function and position

Rebuilt from individual evidence

Unknown: evidence boundary

Siemens identifies 6SE7034-6EE85-0AA0 as a MASTERDRIVES rectifier unit.

The Siemens manual lists 200 kW guide power, 463 A rated current, and 421 A base-load current for this exact unit.

At system level, it receives three-phase AC line input and supplies a common DC link to connected drive inverters; this position is an explicit inference from the cited facts.

Unknown: the individual unit's condition, installation, connected inverter set, and current commercial status.

Exact reference: 6SE7034-6EE85-0AA0
Category: Drives / VFD
Evidence checked: 2026-09-12

System role

This section explains what the product does and where it acts in the surrounding system.

Function: Supplies a common DC link from the three-phase AC line to connected drive inverters.
System position: Sits between the three-phase AC line input and the downstream MASTERDRIVES drive inverters.
Upstream / inputs: Receives the three-phase AC line input specified for the rectifier-unit system.
Downstream / outputs: Supplies DC-link power for connected drive inverters.
Limitations: Unknown: the individual unit's condition, installation, connected inverter set, and current commercial status.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Siemens identifies 6SE7034-6EE85-0AA0 as a MASTERDRIVES rectifier unit.
Confidence: high
- cache.industry.siemens.com — retrieved 2026-09-12; high confidence
Siemens lists the rectifier unit with a guide power rating of 200 kW, rated current of 463 A, and base-load current of 421 A.
Confidence: high
- cache.industry.siemens.com — retrieved 2026-09-12; high confidence

Inferences

Inferred system position: receives three-phase AC line input and supplies a common DC link to connected drive inverters.
Confidence: high
Rationale: The Siemens manual diagram and selection table place the rectifier unit between the line input and drive inverters; this system-position wording is an explicit inference.
- cache.industry.siemens.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: the individual unit's condition, installation, connected inverter set, and current commercial status.
Confidence: low
Missing evidence: The manufacturer manual does not inspect an individual unit or establish its installation-specific connections or commercial status.

System position diagram

Three-phase AC line passes through 6SE7034-6EE85-0AA0 rectifier to a common DC link. — Evidence-supported conceptual system position for 6SE7034-6EE85-0AA0; this is not a wiring or safety instruction.

View Mermaid source

flowchart LR
  line["Three-phase AC line"] --> rect["6SE7034-6EE85-0AA0 rectifier"]
  rect --> dc["Common DC link"]

View diagram labels

Nodes: Three-phase AC line; 6SE7034-6EE85-0AA0 rectifier; Common DC link
Edges: AC supply; DC-link supply

Next action

Use the manufacturer-documented rectifier identity and ratings as the evidence-supported starting point, then verify the connected inverter set before service.

Unknown: confirm the individual unit's condition, installation, connected inverter set, and current commercial status before service or replacement.

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