KNX power supply 20W 30V 0.64A KNX-20E-640

KNX Power Supply – a reliable energy source for a smart building

The KNX-20E-640 power supply is a dedicated device designed to power control systems based on the KNX standard. Its compact dimensions and high efficiency make it an ideal solution for both professional installers and end-users looking for a reliable power supply for their installation. The device provides a stable 30V DC voltage with a current of 0.64A, allowing you to connect up to 64 devices on the KNX bus.

Design and application

The KNX-20E-640 power supply is characterized by a solid construction and mounting on a DIN TS-35/7.5 or 15 rail, which facilitates its integration with the existing electrical infrastructure. The built-in choke on the output prevents interference in the bus communication, ensuring stable operation of the entire system. This is a key solution, as the KNX bus requires a specific power supply signal, and the choke ensures its correct shaping. The device is intended for use in residential and commercial buildings where the KNX system is used to manage lighting, heating, air conditioning or blinds.

Key features and benefits

• High efficiency (up to 86%): minimizes energy losses and reduces operating costs.
• Compact dimensions (52.5 x 90 x 54.5 mm): facilitate mounting in a limited space of the switchboard.
• Wide input voltage range (180-264 VAC, 254-370 VDC): ensures compatibility with different electrical networks.
• Protections (short-circuit, overload, overvoltage): protect the installation from damage and ensure safe operation.
• Built-in choke: guarantees stable communication on the KNX bus and eliminates interference.
• LED indication: informs about the correct operation of the power supply and any problems (overload, reset).
• Bus reset button: allows you to quickly restore the system to operation in the event of a communication failure.
• Wide operating temperature range (-30°C to +70°C): allows the power supply to be used in various environmental conditions.
• 3-year warranty: provides peace of mind and confidence in the long-term reliability of the device.

Using the KNX-20E-640 power supply translates into increased reliability of the smart building system and reduced costs associated with its operation thanks to high energy efficiency. Thanks to the compact size, you will save space in the electrical switchboard, and the protections will ensure protection against failures and damage.