AC adapters, power supplies, and chargers are used to power all sorts of electronics. AC adapters are also potential electrical and fire hazards, which is why these are subject to various regulations and standards in the United States. This includes 47 CFR Part 15, 10 CFR Part 430, and several UL standards – the latter of which are generally voluntary.
This guide serves as an introduction to compliance requirements for AC adapters, and power supplies and chargers in general. You also find examples of relevant standards.
Continue reading AC Adapter Regulations in the United States: An Overview