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NEC Code Chatbot

Ask plain-English NEC code questions. Answers are cited to the National Electrical Code and drawn from a reference library authored by Michael Malfettone, a licensed third-generation NJ master electrician. NJ-specific context — PSE&G, JCPL, Hudson and Essex County permit reality — baked in.

👋 Ask me an NEC code question. I’ll cite the specific article and link you to a guide for more context. Try one of these to get started:

This is an educational guide. For real permit work, verify every code interpretation with your local AHJ and a licensed electrician of record. The chatbot will not give definitive compliance advice.

Code articles in this assistant

The chatbot draws answers from these original guides authored by our licensed master electrician. New articles get added every week. If your question isn’t covered, the bot will tell you honestly.

NEC 220
NEC Article 220 Load Calculations: Standard vs Optional Method
Plain-English walkthrough of how to calculate a residential service load using the Standard method (Part III) and the Optional method (Part IV), with practical NJ examples.
NEC 240.4(D)
NEC 240.4(D) — The Small Conductor Rule (14, 12, 10 AWG breaker limits)
The NEC 240.4(D) "small conductor rule" caps the maximum breaker amperage on 14, 12, and 10 AWG conductors regardless of ampacity tables. Critical for residential branch circuits.
NEC 250
NEC Article 250 — Grounding and Bonding for NJ Residential Services
How NJ residential services are grounded and bonded per NEC 250: ground rods, water main bonds, GEC sizing, and the neutral-to-ground bond at the service disconnect.
NEC 625
NEC 625 — EV Charger Sizing and the 125% Continuous-Load Rule
EV chargers are continuous loads under NEC 625.42. The branch circuit must be sized at 125% of the charger nameplate. What this means for breaker, conductor, and load-calc decisions.
NEC 705.11(D)
NEC 705.11(D) — When to Use a Supply-Side Tap on Solar PV Installs
Supply-side connections per NEC 705.11(D) are the cleanest answer when the existing main panel busbar can't accept a back-fed breaker for solar. Required wire sizing, AC disconnect, and AHJ expectations.
NEC 408
NEC Article 408 — Panelboard Requirements (Working Space, Labels, Schedule)
Article 408 governs panelboards: working space (110.26), required circuit directory, dead-front cover, and the panel schedule that must accompany every NJ permit submission.