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Calculadora de Dimensionamiento Motor Trifásico — Herramienta online gratis

kW + V + cos φ + eficiencia → corriente + protección

Dimensionamiento motor trifásico: corriente nominal desde kW, tensión, factor de potencia, eficiencia. Más corriente arranque + protección sobrecarga recomendada.

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Three-Phase Motor Sizing Calculadora

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).

Puntos clave

  • Three-Phase Motor Sizing Calculadora is a free, browser-based calculator tool — kw + v + cos φ + efficiency → current + protection.
  • No signup, no downloads, no file uploads. Herramientas run in your browser; the few that need an outside service say so on the page.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Three-Phase Motor Sizing Calculadora

  1. Open the tool: Launch Three-Phase Motor Sizing Calculadora on Herramientaolis — 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 Calculadora — Quick Facts

Precio
Gratis — sin límites, sin marcas de agua, sin paywall
Privacidad
Se procesa en tu navegador. Las herramientas que necesitan un servicio externo lo indican en la página. Se cuentan las visitas (Google Analytics).
Plataforma
Cualquier navegador moderno — escritorio, tablet o móvil
Categoría
Calculadora Herramientas on Herramientaolis
Sin conexión
Works offline after first visit (Progressive Web App)
CaracterísticaDetalles
HerramientaThree-Phase Motor Sizing Calculadora
CategoríaCalculadora
Requiere registroNo
Subida de archivoNinguno — procesado en el navegador
Compatible con móvilTotalmente adaptable
CosteGratis para siempre

Why Use Three-Phase Motor Sizing Calculadora?

You should try Three-Phase Motor Sizing Calculadora for a quick, private way to kw + v + cos φ + efficiency → current + protection. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

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% Privacidad. Esta herramienta funciona enteramente en tu navegador. Tus datos nunca se suben a ningún servidor.