Resources

License reciprocity explorer Pick a state and see whether an electrician license is required (state or local), the license classes, which states it reciprocates with by license type, and the continuing-education rules. Each answer is linked to the official state board. Open → Circuit calculator Enter your conductors (type, size, quantity, with grounded and equipment grounding conductors entered separately) and get the smallest raceway that fits, the percent fill, and pass/fail against the NEC 2023 Chapter 9 fill rules, across 14 raceway types. Open → Load calculator Article 220 service and feeder load calculations, residential and commercial. The standard method plus the optional methods in 220.82, 220.83, 220.84, 220.85 and 220.87. Applies the demand factors, sizes the service, the neutral, the grounding electrode conductor and the equipment grounding conductor, cites the section behind every number, and prints as a worksheet. Open → Motor calculator Motor circuits under Article 430. Full-load current from Tables 430.247 through 430.250, branch-circuit conductors at 125%, overload sized on the nameplate, short-circuit and ground-fault protection from Table 430.52(C)(1) including both increase paths, disconnect rating, and feeder conductors and protection for a group of motors. Prints as a worksheet. Open →