This reliable KNX power supply with 640mA is ideally suited for small to medium-sized smart home projects with KNX.

Do not plan the power supply for your KNX system too small, because you will extend your KNX system with certainty and then have to exchange the KNX power supply. Too little power supply for KNX provides too little current in your KNX bus and this inevitably leads to failures and malfunctions. We would therefore prefer to install a 640mA power supply for KNX. This will save you a conversion or extension later on.

With a 640mA KNX power supply You can supply KNX devices, such as KNX actuators, KNX switches, KNX dimmer etc.

Calculate your KNX power supply with 10mA power consumption per integrated KNX device. This is usually sufficient to calculate the KNX power supply. Do not dimension the power supply for KNX too tightly. When you calculate on 250mA or more, you decide for a KNX power supply with 640mA. This means that you have planning certainty and do not have to convert immediately. You can also integrate the KNX power supply 320mA as an additional power supply to your KNX system if you have a further line and need a power supply for KNX with 320mA. Alternatively, we have a KNX power supply with 320mA in the offer if the KNX power supply with 640mA is too large for your project.

The compact design of this power supply for KNX with 640mA does not require much space in its distribution and is suitable for DIN rail mounting.

Mounting the 640mA power supply is easy because you only need to click on the DIN rail and make the electrical connections. On the primary side, connect the 640mA power supply for KNX to a presecuring of your distribution and supply the PSU with 230V. On the secondary side, connect the bus terminals to the output of the KNX bus voltage of the 640mA power supply.