Siemens 6EW1860-3AA +5 V 60 A voltage regulator module

A Siemens NC-range voltage regulator module rated for a +5 V and 60 A supply rail.

System function

Rebuilt from individual evidence

System position

Evidence and limits

6EW1860-3AA is identified in the source as a Siemens voltage regulator module for the NC range with a +5 V and 60 A rating.

Regulates the +5 V supply rail for connected Siemens NC electronics.

System position: sits in the power distribution layer upstream of the NC electronics that use the regulated +5 V rail.

Unknown: The input specification, compatible NC assembly, wiring, lifecycle state and physical condition are not established by the source.

Exact reference: 6EW1860-3AA
Category: PLC / CPU
Evidence checked: 2026-09-12

System role

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

Function: Regulates the +5 V supply rail for connected Siemens NC electronics.
System position: Sits in the power distribution layer upstream of the NC electronics that use the regulated +5 V rail.
Upstream / inputs: The upstream power source provides input power to the regulator module.
Downstream / outputs: NC electronics receive the regulated +5 V rail from the module.
Limitations: Unknown: The input specification, compatible NC assembly, wiring, lifecycle state and physical condition are not established by the source.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The source identifies 6EW1860-3AA as a Siemens voltage regulator module for the NC range with a +5 V and 60 A rating.
Confidence: medium
- www.plswiss.com — retrieved 2026-09-12; medium confidence
The source documents that 6EW1860-3AA regulates the +5 V supply rail for connected Siemens NC electronics.
Confidence: medium
- www.plswiss.com — retrieved 2026-09-12; medium confidence

Inferences

Inference: 6EW1860-3AA occupies this system position: sits in the power distribution layer upstream of the NC electronics that use the regulated +5 V rail.
Confidence: medium
Rationale: The exact-reference source documents the product identity and its interfaces, software scope or assembly relationship.
- www.plswiss.com — retrieved 2026-09-12; medium confidence

Unknowns

Unknown: The input specification, compatible NC assembly, wiring, lifecycle state and physical condition are not established by the source.
Confidence: low
Missing evidence: The listing describes the module rating and NC range, not the installed assembly or physical condition.

System position diagram

A system path places 6EW1860-3AA between an upstream system and a downstream system. — The source-supported position of 6EW1860-3AA connects the upstream system to the downstream system.

View Mermaid source

flowchart LR
  upstream["Upstream system"] --> product["6EW1860-3AA"]
  product --> downstream["Downstream system"]

View diagram labels

Nodes: Upstream system; 6EW1860-3AA; Downstream system
Edges: Documented signal or power path; System connection

Next action

The evidence supports a concrete system role for 6EW1860-3AA.

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