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Volpedia/Games/Factorio/Circuits/Red wire
FACTORIO / CIRCUITS

Red wire

Connects supported entities to the red signal network for reading or controlling conditions.

Original Volpedia referenceReviewed 2026-10-27Quick reference · noindexBASE / CORE SYSTEM
Original Volpedia editorial diagram, not an in-game machine screenshotOriginal Volpedia illustration
OverviewResources17Machines17Logistics17Power12Trains11Circuits12Research14Weapons13Maps12Modes8Enemies11Blueprints10Space Age14Progression12Guides22Tips12Tools2
Practical advice: Use red and green networks separately when two logical signals must not mix.
How it worksPractical adviceMistakes to avoidRelated
01

How it works

Connects supported entities to the red signal network for reading or controlling conditions.

02

Practical advice

Use red and green networks separately when two logical signals must not mix.

03

Mistakes to avoid

Connecting both colors and assuming they share one undifferentiated signal.

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circuitsArithmetic combinator

Performs numerical operations on circuit signals with configured input and output behavior.

circuitsCircuit memory cell

Feedback-based circuit arrangement that can retain a useful state while power and connections persist.

circuitsCircuit-controlled inserter

Turns an inserter on or off depending on measured stock or other conditions.

circuitsCircuit-controlled pump

Controls fluid routing based on tank values, network signals or other conditions.

circuitsCircuit-controlled train station

Adjusts train limits or departure behavior using local availability signals.

circuitsConstant combinator

Provides manually configured signals for thresholds and configuration values.

circuitsDecider combinator

Evaluates signal comparisons and produces output based on a condition.

Back to Circuits
IN THIS GUIDEHow it worksPractical adviceMistakes to avoidRelated topics
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Volpedia is an independent fan reference, not affiliated with Wube Software. Factorio mechanics and recipes may change between versions, mods and base game versus Space Age. Content last reviewed October 27, 2026. Category illustrations are original Volpedia diagrams, not gameplay screenshots. Factorio trademarks belong to their owners. Research and provenance records are maintained internally.

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