The National Electrical Manufacturers Association (NEMA) published the 2021 Electrical Standards & Products Guide (ESPG), a comprehensive guide that includes nearly 800 NEMA publications for electrical and medical imaging industries, as well as product categories and NEMA Member manufacturers of those products. The 2021 ESPG now includes nearly 800 documents from the NEMA technical library, as well as 60 new original documents that were published in 2020. ESPG is used by buyers, specifiers, contractors, and distributors. In addition to listing all NEMA publications, ESPG provides sales contact information, by product type, for hundreds of electrical manufacturers. Electrical Standards & Products Guide (ESPG) (nema.org) Download |  2021 Electrical Standards & Products Guide