TR WR receptacle selection guide written as a manufacturer-side spec review memo. Covers how TR, WR, and GFCI characteristics combine at the SKU level under NEC 406.12, 406.9, 210.8, UL 498, and UL 943 — with PO line examples, pre-shipment QC layers, and an honest note on what documentation B2B buyers actually request (and what they do not). Written for contractors, distributors, and project specifiers working on North American projects.
