Thhn/thwn

1 article

A professional electrician inspecting a modern electrical panel, showcasing various wiring types and safety measures, with tools and blueprints in the background, emphasizing precision and compliance.

NM, UF, and THHN/THWN: Choosing the Right Residential Electrical Wire

This guide explains the differences between common residential electrical wires like NM, UF, and THHN/THWN, detailing their approved locations and applications according to the NEC. Choosing the correct wire type is crucial for safety and compliance in your wiring project.

Ben Foster·March 31, 2026