Wire & Load
Wire size, breaker, drop
Gratis · Compras dentro de la app · Diseñada para iPad. No verificada para macOS.
The offline electrician's calculator — wire size, voltage drop, and breaker rating per NEC 2023. Try free for 7 days, then $1.99 lifetime.
Stop guessing the right wire size. Wire & Load is the no-internet-needed reference every electrician and maintenance tech wants in their pocket.
GET AN INSTANT RECOMMENDATION for AWG / mm² wire size, voltage drop percentage, and the matching standard circuit breaker — driven by NEC 2023 / 75°C ampacity tables and the 240.6(A) breaker series.
WHAT'S INSIDE
• Voltage-drop calculator — single- and three-phase, copper or aluminum
• Configurable voltage-drop limit (0.5% – 10%)
• NEC 240.4(B) next-size-up breaker rule applied automatically
• 60°C limits for 14/12/10 AWG copper and 12/10 AWG aluminum pre-applied per NEC 240.4(D)
• Continuous-load (≥ 3 hr) 1.25× multiplier toggle
• Power-mode input — enter watts and power factor, the app derives the working current
OFFLINE REFERENCE TABLES
• AWG ↔ mm² ↔ diameter (ASTM B258)
• Copper and aluminum ampacity (NEC 310.16, 75°C)
• Standard breaker sizes (NEC 240.6(A))
• Motor starting inrush multipliers — DOL, star-delta, soft starter, VFD (NEMA MG-1)
DESIGNED FOR THE FIELD
• Works on any job site, no signal needed
• Search built into every reference table
• Both AWG and mm² always shown on results
• Switch between metric (mm² / m) and imperial (AWG / ft)
• Localized in English, Spanish, Japanese, French, German, and Portuguese
PRIVACY FIRST
No accounts. No analytics. No ads. No tracking. Your inputs never leave your device.
PRICING
Try Wire & Load free for 7 days. After that, unlock lifetime access for a single $1.99 purchase — no subscription, no recurring charges, free updates.
DISCLAIMER
This app provides general reference information based on commonly-used electrical engineering tables and formulas. Results are estimates and do not constitute professional engineering advice. Always follow the electrical code applicable in your jurisdiction and consult a licensed electrician or engineer.
Calificaciones y reseñas
- Esta app no ha recibido suficientes calificaciones ni reseñas para mostrar un resumen.
El desarrollador (Shenzhen Fu Kang Heng Development Co., Ltd.) indicó que las prácticas de privacidad de la app pueden incluir el manejo de datos que se describe a continuación. Para obtener más detalles, consulta la política de privacidad del desarrollador .
No se recopilan datos
El desarrollador no recopila ningún dato en esta app.
Accesibilidad
El desarrollador aún no ha indicado cuáles funciones de accesibilidad admite esta app. Obtén detalles
Ficha técnica
- Vendedor
- Shenzhen Fu Kang Heng Development Co., Ltd.
- Tamaño
- 2.7 MB
- Categoría
- Utilidades
- Compatibilidad
Requiere iOS 16.6 o posterior.
- iPhone
Requiere iOS 16.6 o posterior. - iPad
Requiere iPadOS 16.6 o posterior. - Mac
Requiere macOS 13.5 o posterior y una Mac con el chip M1 de Apple o posterior. - Apple Vision
Requiere visionOS 1.0 o posterior.
- iPhone
- Idiomas
Español y 5 más
- Español, Alemán, Francés, Inglés, Japonés, Portugués
- Edad
4+
- 4+
- Compras dentro de la app
Sí
- Acceso de por vida USD 1.99
- Copyright
- © 2026 Cao Fugui