UL category Fan-Speed Controls (GQHG) explains UL standard testing requirements for hard-wired receiver units.
If UL listed hard-wired receiver is packaged in a kit with transmitter remote, that kit is likely insured for product liability.
Regarding local stores selling hard-wired receiver kits sourced from China, or missing UL markings, the practice may favor a cost-benefit analysis. Corporate America pioneered legislation lobbying to de-fund, then exploit unenforceable regulations.
Since paddle-fan hard wiring is more likely missing fire boxes, in combustible ceiling materials, and over fused by 20A breakers on 15A cables, much less secured by fan-rated supports, the low risk of Fire Marshals noticing spontaneous combustion of hardwired receiver units, may justify extra-ordinary profits from the exploit of unlisted parts.
Ceiling fan remote controls are sold by the millions, and a few regulatory fines are often considered a cost of doing business.
Finding listed parts in the US may become more difficult for installers to find. Especially if they can be legislated to take the blame in liability law suits.
