How does the connection in the electrical panel work?

When choosing a suitable inverter, it's important to take the existing electrical connection into account. Inverters must be connected to a separate circuit. Inverters with a maximum power of up to 3680 watts can be connected to a standard 16A circuit.

For larger systems, a heavier fuse is required; otherwise, the fuse may blow on a beautiful summer day.

A Heavier Fuse

If you want to use a heavier fuse, it's important to check whether the main fuse allows for it. The main fuse must always be larger than the largest fuse on the load side. For example, if the inverter needs a 25A fuse, the main fuse should be at least 35A. In households and small offices in the Netherlands, the standard fuse is 25A. See also our article on selectivity for more explanation.

Upgrading a connection comes at a cost. In some cases, it may be better to connect two smaller inverters to different circuits rather than one inverter to an overly large circuit. For larger systems, there are inverters with a three-phase connection that distribute the power evenly across the three phases, allowing for a lower fuse rating.

What should you keep in mind?

Also consider the residual current protection. This article explains the requirements for residual current protection in more detail. The solar panels and the grid must be properly connected. We recommend a consultation, where one of our experts can provide more information and help you make the right choice.

Let me know if you'd like any further adjustments!