UL has announced the release of a new edition of UL 1563. UL 1563 applies to “electric spas, equipment assemblies, and associated equipment.” The updated edition can be purchased on UL’s website.
“These requirements apply to self-contained spas. They also apply to field-installed equipment assemblies, blowers, and controls for use with field-installed hot tubs, swimming pools, and non-self-contained spas. These products are for household or commercial use, indoors, outdoors, or both. All equipment is intended for installation and use in accordance with Article 680 of the National Electrical Code, NFPA 70.”
*Description from the UL website.