I have the impression these are consumer products so I would them to be designed to be installed by people who do not normally work with electrical systems. If they are only sold to tradesmen that would be different.

Yeah, it would be important to understand who the company is intending to sell to or do the installation.

Though the lines are often blurred, because I guess most companies would like to sell directly to end customers, even if their product requires a professional to install.

Even IKEA does this. You can go in and buy an electric stove and oven, grab them from the warehouse and take them home with you right there. But it's a bit of an illusion: You're still supposed to call an electrician to actually connect the things.

> Yeah, it would be important to understand who the company is intending to sell to or do the installation

You can do that by just reading the product page[1]. The delta pro, the equipment in question, looks like a plug-in appliance. It visually communicates that it is portable (by having a wheel and a handle) and by virtue of having a power lead connect to it it communicates that you can just plug it in. They further reinforce this by writing this: "Plug & Play home backup solution". "Easy installation with completely pre-wired Plug & play home backup solution" "The solution provides a convenient home battery system without rewiring or running dangerous extension cables through your home." "Plug directly into an AC wall outlet and make sure that the wall output current is more than 15A."

And on top of that the manual[2] makes no mention of needing an electrician.

In contrast an IKEA electric oven's product page[3] states this: "No plug is included. Installation to be carried out by a qualified installer." and then the manual[4] states "Installation, including water supply (if any) and electrical connections, and repairs must be carried out by a qualified technician."

But of course nobody reads the manual. The big difference is that one comes with a plug while the other doesn't.

1: https://us.ecoflow.com/products/delta-pro-portable-power-sta...

2: https://websiteoss.ecoflow.com/cms/upload/2022/10/12/1312845...

3: https://www.ikea.com/gb/en/p/mataelskare-forced-air-oven-ike...

4: https://www.ikea.com/in/en/manuals/matalskare-forced-air-ove...

If you can do a code compliant installation, then you’re the customer. If you can’t, then I’d suggest hiring an electrician.