⚙️ Electrical Calculations PRO 10.5.1 (Mod Extra Build 451) – Precise Tools for Professionals
Electrical Calculations PRO version 10.5.1 (Mod Extra, build 451) is a fully unlocked Android app that brings a comprehensive suite of electrical engineering calculators and reference tools to your device. Designed for field technicians, students, and engineers, it offers advanced features without ads or restrictions and buy.
🆕 What’s New in Build 451 of Version 10.5.1?
Released mid‑July 2025 with an APK size of around 24 MB
Addressed compatibility issues across Android 6.0+ devices and improved UI responsiveness.
Enhanced calculation accuracy and stability in large project workflows.
🔍 Comprehensive Calculation Modules
🧮 Fundamental Electrical Tools
Calculate voltage, current, resistance, active/apparent/reactive power, power factor, impedance, reactive power, joule heating, and more.
🧷 Wire & Cable Sizing & Voltage Drop
Includes conductor sizing per codes, voltage drop calculations, current‑carrying capacity, fill ratio, and ambient temperature corrections.
⚡ Power System Components
Calculate transformer losses (eddy & hysteresis), efficiency, regulation, fault current, and motor performance parameters like slip, torque, and starting current.
📐 Passive Electronics & Circuit Calculations
Resistor/inductor color codes, voltage/current dividers, resonance frequency, Zener diodes, capacitor time constants, and more.
🔄 Converters & Reference Data
Includes unit converters (energy, torque, angle, power), NEC tables, wiring standards, cable resistivity tables, protection classes, pinout references, and connectors types.
⚙️ Why Choose the PRO 10.5.1 Build 451 APK?
✅ Fully Unlocked & Ad-Free
No in-app ads or trial limitations—full access to all modules and tools.
📱 Broad Compatibility
Works on Android 6.0 (Marshmallow) or newer, and supports ARM & x86 architectures across all DPI profiles.
📚 Built-In Guides & Standards
Includes embedded help, code references, diagrams, and UI hints to simplify complex tasks and code compliance.
📱 Installation & Device Support
Compatible with Android 6.0 + and supports multiple CPU architectures (arm64, armeabi‑v7a, x86 variants)
APK size approximately 24 MB—compact, fast to install.
🧩 Who Should Use This App?
Electricians & Field Technicians needing quick and accurate wire sizing, voltage drop, and load calculations.
Engineering Students & Instructors working with transformer, motor, or three-phase system equations.
Facility Designers & Planners requiring fast compliance checks and conversions across wiring standards.
Global Users needing code references and unit tables for international electrical norms.
⚖️ Pros vs Cons
| ✅ Advantages | ⚠️ Limitations |
|---|---|
| Broad range of tools and advanced reference data | Not available via official store; must install via APK |
| Ad-free and fully unlocked build | No automatic updates from the official store |
| Supports conversion, sizing, fault current, cable losses, etc. | Requires careful sourcing to avoid tampered APKs |
| Lightweight (~24 MB) and stable across Android versions | No integration with cloud sync or desktop storage |
✔ Tested: This software was tested on Windows 10 & Windows 11 and works smoothly without issues.
Frequently Asked Questions
- Is this software free?
Yes, it can be downloaded and used for free. - Does it support Windows 11?
Yes, it works perfectly on Windows 10 and 11. - Is it safe to use?
Yes, the software was scanned and tested before publishing.
Last updated: January 2026