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Spannungsabfall-Rechner — Kostenloses Online-Tool

Spannungsverlust über Kabellänge

Berechne Spannungsabfall über eine Kabelstrecke. Kupfer oder Aluminium, einphasig oder dreiphasig. Wichtig für Neinrmen. Ohne Anmeldung.

Voltage drop
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Mehr erfahren

Voltage drop calculator

Calculate voltage loss across a wire run. Meet NEC 3% recommendation.

How to use this tool

  1. 1

    Enter current (amps)

    Load current the circuit carries.

  2. 2

    Enter wire length

    One-way distance from source to load.

  3. 3

    Pick AWG + material

    See voltage drop + percentage.

Frequently Asked Questions

What is acceptable voltage drop?
NEC recommends max 3% for branch circuits, 2% for feeders. Combined total should not exceed 5%.
Single vs three phase formula
Single phase: Vdrop = 2 × I × R × L. Three phase: Vdrop = √3 × I × R × L. Three-phase has lower drop for same load.

Wichtigste Punkte

  • Voltage Drop Rechner is a free, browser-based calculator tool — voltage loss over wire length.
  • Nein signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Voltage Drop Rechner

  1. Open the tool: Launch Voltage Drop Rechner on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Voltage Drop Rechner — Quick Facts

Preis
Kostenlos — keine Limits, kein Wasserzeichen, keine Paywall
Privatsphäre
100% browser-basiert — keine Daten verlassen dein Gerät
Plattform
Jeder moderne Browser — Desktop, Tablet, Mobil
Kategorie
Rechner Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
MerkmalDetails
ToolVoltage Drop Rechner
KategorieRechner
Anmeldung nötigNein
Datei-UploadKeine — wird im Browser verarbeitet
Mobile-UnterstützungVoll responsive
KostenFür immer kostenlos

Why Use Voltage Drop Rechner?

You should try Voltage Drop Rechner for a quick, private way to voltage loss over wire length. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privatsphäre. Dieses Tool läuft komplett in deinem Browser. Deine Daten werden niemals auf einen Server hochgeladen.