At component level, there are very few requirements (standards, specs, etc). However, when designing a product that does some function, you’ll very-likely need RCM certification. You’ll also need to be qualified to work on 240V gear, which goes up in license classes depending on what type of systems are worked on.
Industrial settings (as opposed to domestic) are not subject to the same requirements (such as the Avionics workshops in the Air Force I worked at for quite some time). However, there are other regulations to follow.
Short story, yep, those and most gear we sell could be used in 240V applications. Though don’t even attempt to mess around with it unless you are qualified to do so. It’s not just lethal, it’s lethal.
Our products, guides and projects are based around low voltage use (the DIY electronics zone).
