Technical support

If you have any questions regarding technical aspects of our products before buying or during operation: send an email to We will get back to you as soon as possible.


Power supplies from Kniel are not designed as a short-lived product but as a long-lasting investment. No matter if the damage results from inappropriate handling or after a long time of operation we offer a repair service for all power supplies from Kniel.
Please send the defective unit packaged safe for transport and free of charges to this address and include a meaningful description of the problem:

  • Kniel System-Electronic GmbH
  • Abt. Service
  • Kurzheckweg 8
  • 76187 Karlsruhe
  • Germany

We do not issue RMA numbers.

Please provide information about

  • whether you want a quotation for the cost of the repair in advance
  • whether you want us to repair the power supply in any case (independently of the costs)
  • or whether we should repair the power supply as fast as possible if the cost does not exceed a given amount set by you.

If you want to contact us beforehand, send us an email to or use the contact form by clicking on Inquire for information below.


Many usage cases require that the power supply keeps its values (eg output voltage, outpur current, signalisation thresholds, switching off thresholds) to the exact scheduled values.
These values must be controlled from time to time, depending on the usage. We offer to calibrate your power supply and check all values and settings. Every deriving setting will be corrected by us. Please ask us for prices and conditions.

Development and manufacturing of customer specific solutions

Even though we have a wide range of power supplies in our portfolio, you might not find exactly what you need. We modify or develop a power supply so that it meets exactly your application's requirements.
No matter whether you need different output values, a special mounting or a hardened design for special climactic conditions or mechnical stress.
Ask us and we will make you an offer for a modified power supply or a customer specific design, if needed including certification

Inquire for information

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Fixed voltages
for 19” systems

Ajustable power supplies
for 19” systems

Programmable power supplies
for 19” systems

energy for 19” systems

Fixed voltages
for wall mounting and DIN-rail mounting

Adjustable power supplies
for wall mounting and DIN-rail mounting

Programmable power supplies
for wall mounting and DIN-rail mounting

energy installation for wall mounting

Firmware, Flash-Tool, Drivers

General information


Kniel System-Electronic GmbH
Kurzheckweg 8 · 76187 Karlsruhe · Germany ·