That is decided by local regulation, not by the plug on the cable. Some countries permit a standard socket under conditions, others require a specific outlet type or a fixed connection, and the circuit it feeds into matters as much as the socket itself.
This is the question that decides whether a balcony kit is legal where you live, and it is the one no retailer’s listing can answer for you.
Why the socket is not the whole question
A plug fits or it does not, but the regulation is about the circuit behind it: how it is protected, what else shares it, and whether current flowing back down it is accounted for. Different countries have reached different conclusions about that, and several have changed position recently.
What is decided at national level
Whether plug-in connection is permitted at all. Which socket type. What output ceiling applies. What has to be registered and with whom. Whether an installer must be involved. These are the five questions to settle before choosing a kit.
What is decided by the product
The inverter’s output limit and the grid standards it names, its protection behaviour when the mains disappears, and the specification of the lead supplied with it. Those are published per unit and this site reports them.
Where the building comes in
Landlord permission, association rules, facade restrictions and the structural question of fixing anything to a railing. None of those is electrical, and all of them have stopped installations that were otherwise entirely compliant.
Where this page and the manufacturer’s documentation differ, the documentation is the one to follow. Every capacity, output, input window, current limit, cycle count and temperature threshold on this page comes from the maker’s own published figures, with the unit as printed and the source named. None of it is measured here, and no figure is converted into another convention, because a converted number is a different number. And the limit this page does not cross: no cable size, fuse rating, earthing arrangement or mounting described here makes an installation safe. The page reports what a maker specifies for its own product — an input protection device, a clearance, a grid standard it names — and what applies to your installation is decided by the regulations in force where you live and by whoever is qualified to work to them.
What people ask before they order
What is the concern with the circuit?
A plug-in inverter injects current into a circuit that was designed to carry current in the other direction, protected by a breaker that does not see it. The local rules address this, and their conclusions differ.
Does the inverter’s own output limit matter here?
It is central. Several national rules are written around an output ceiling, and the inverter’s compliance with that ceiling is a fixed property of the unit, stated by its maker.
Last reviewed 16 September 2026