ᐅ AFFD arc fault device / arc fault circuit interrupter issues

Are these devices currently mandatory when electrical professionals are present? I mostly hear about problems and unnecessary costs related to them. Is there a way to avoid them and save on expenses? I am building a wooden house with Fermacell-layered walls and wonder if I need these devices. I assume my insurance coverage wouldn't be voided in case of fire, right?

To be installed according to standards, but it is not legally required. However, it is unlikely that any electrician will approve the installation without the arc fault circuit interrupters (AFCIs). Therefore, they should be installed in timber houses and timber frame structures. Even if an electrician were to approve the work without them, the insurance company could still hold you liable in the event of a fire. These protective devices start at around 100€ (approximately $110). I wouldn’t skip them...

Okay, thanks for the information. I have often read that because of the AFFD fuses, prefabricated house manufacturers tend to charge additional costs of one to two thousand euros.

Yes, you need several. That’s why the costs quickly add up to 1,000-2,000 euros. But you should be aware of this when choosing a timber frame construction.

Sorry, but the insurance argument is simply nonsense. In case of damage, the insurance follows the regional building code—only that counts—and according to the regional building code, these protective switches are not mandatory. Our electrician just had us sign a document stating that we waive them, and that was it.

Just as described by @KingSong, we did it that way.