Häufig Gestellte Fragen - Allgemeine

Which power supply should I select for my KNX system?

To choose a proper power supply for a KNX installation, you must take into account the devices consumption at 29 VDC with a security factor of 1,5 in order to cover future project extensions.

Example:

Line with 30 KNX devices. Supposing an estimated consumption of 10 mA per device, the total line consumption would be 300 mA.

Applying a security factor of 1,5, the chosen power supply should supply more than 300*1,5=450mA. Therefore, the correct election would be a 640mA power supply.