About Azad Circuit Hub
Standards-based calculators, guides, and independently researched tool reviews for engineers, electricians, and homeowners.
Azad Circuit Hub is a technical resource built for electrical engineers, electricians, students, and homeowners who need answers grounded in real standards, not guesswork. We publish standards-based calculators, step-by-step guides, and independently researched tool reviews covering everything from busbar sizing to EV charger installation.
Abdul Wassay
Electrical Engineer, 15+ Years in Industry & EPC Projects
Abdul Wassay is an electrical engineer with over 15 years of experience across industrial electrical systems, EPC (Engineering, Procurement, and Construction) projects, and renewable energy installations. His background spans PLC and SCADA programming, industrial automation, electrical troubleshooting, and power system protection — hands-on experience from live panels, switchgear, and control systems, not just textbook theory.
That field background is why our calculators cite real code (NEC, IEC, IEEE) instead of simplified rules of thumb, and why our tool reviews are written from a working engineer's perspective on reliability and safety, not just spec-sheet comparisons.
Read the full author profile →What You'll Find on Azad Circuit Hub
Busbar Sizing & Clearance
IEC and NEC compliant sizing for panel and switchgear design.
Relay Protection Settings
Coordination calculators for the most common protection schemes.
Cable, Conduit & Earthing
NEC and IEC-cited sizing for conductors, trays, and grounding systems.
Utility Bill Estimators
Matched to real regional tariff structures, not flat national averages.
Applied Engineering Topics
In-depth guides on the systems that power homes and industry.
Independent Tool Reviews
Researched buying guides for the tools engineers and electricians rely on.
Concepts & Circuit Theory
The fundamentals behind the calculators above, explained with worked examples.
Our Editorial Standards
Every calculator and guide on Azad Circuit Hub is checked against NEC, IEC, or IEEE code where applicable, and written to be usable by someone working under real time pressure — not just a student studying for an exam. Where standards differ by region (IEC vs. NEC vs. BS 7671), we say so explicitly rather than assuming one applies everywhere.
Some of our content includes affiliate links to products we've researched — tools, calculators, and hardware we believe are genuinely useful for the work they're built for. If you buy through one of these links, we may earn a small commission at no extra cost to you. This never affects which products we recommend or how we describe them.
Content is reviewed and updated as codes, standards, and product lineups change.
Get in Touch
Have a correction, a question, or a topic you'd like us to cover? We read every message and typically reply within 24-48 hours.