toololis
Zurück Zurück zu Rechner
🔌

Drehstrommotor-Dimensionierung — Kostenloses Online-Tool

kW + V + cos φ + Wirkungsgrad → Strom + Schutz

Drehstrommotor-Auslegung: Bemessungsstrom aus kW, Spannung, Leistungsfaktor, Wirkungsgrad. Plus Anlaufstrom + Überlastschutz-Empfehlung. Ohne Anmeldung.

📚
Mehr erfahren

Three-Phase Motor Sizing Rechner

Full-load current, locked-rotor amps, recommended overload protection. From kW + voltage + power factor + efficiency. IEC standard sizing.

How to use this tool

  1. 1

    Motor rating

    kW + voltage + cos φ + efficiency.

  2. 2

    See full-load current

    Plus locked-rotor amps.

  3. 3

    Protection sizing

    Overload + short-circuit recommendations.

Frequently Asked Questions

Three-phase current formula?
I = P / (√3 × V × cos φ × η). Power in W, voltage line-to-line, cos φ = power factor, η = efficiency. For 11 kW @ 400V, 0.85 PF, 92% eff: I = 11000 / (1.732 × 400 × 0.85 × 0.92) ≈ 20.3 A.
Locked-rotor (starting) current?
Typically 5-7× full-load current. Code letter on nameplate: B = 6.3-7.1 kVA/HP, F = 5.0-5.6, etc. Affects upstream protection + cable sizing.
Overload protection setting?
Per IEC: 1.05-1.20 × full-load current (FLA). For class 10A relay (most common): 1.15 × FLA. Set higher for high-inertia loads (compressor, fan with damper).

Wichtigste Punkte

  • Three-Phase Motor Sizing Rechner is a free, browser-based calculator tool — kw + v + cos φ + efficiency → current + protection.
  • 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 Three-Phase Motor Sizing Rechner

  1. Open the tool: Launch Three-Phase Motor Sizing 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.

Three-Phase Motor Sizing 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
ToolThree-Phase Motor Sizing Rechner
KategorieRechner
Anmeldung nötigNein
Datei-UploadKeine — wird im Browser verarbeitet
Mobile-UnterstützungVoll responsive
KostenFür immer kostenlos

Why Use Three-Phase Motor Sizing Rechner?

You should try Three-Phase Motor Sizing Rechner for a quick, private way to kw + v + cos φ + efficiency → current + protection. 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.

You might also like

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