Maintenance & on-call service


Interference-free functionality.


RITTER Starkstromtechnik GmbH & Co. KG


Luisenglück 20
44225 Dortmund


Tel.: +49 231 77 55 - 0


Contact person:
Sebastian Manczyk
Tel.: +49 231 77 55 - 125

Inspection, maintenance and constant review – we will keep an eye on your equipment. 

Proper operation requires flawless processes. This requires first-class products and regular checks. You can get both from us. We will focus on the interference-free use of your low- and medium-voltage systems. Thanks to our services, you will be on the safe side.


We can take over the professional inspection and maintenance of your equipment for you. Our service also includes the continuous inspection of operating and safety equipment, visual inspection during operation, and preparation of the associated reports.

Current standards – the benchmark for our service.

We adhere to the current guidelines with all our services. Meaning that you can be sure that all work will be carried out according to the rules. Maintenance, inspection and servicing are carried out in accordance with the VDMA (German Association of Machine and Plant Builders) principles. Our repeat tests meet the requirements of DGUV (German Social Accident Insurance) 3. We also carry out the testing of portable devices in accordance with standards, as per DIN VDE 701/702. 

An overview of our services

  • Servicing/maintenance of switchgears and technical equipment/operating material
  • Design according to VDMA guidelines (German Association of Machine and Plant Builders)
  • Checking of transformers for overload
  • Detection of faulty connections on each device type
  • Unequal phase load detection for three-phase outgoing currents
  • Early detection of errors before possible functional failures
  • 24-hour emergency service

Our 24-hour service – always there when you need it.

24 hours a day, seven days a week: in the event of a breakdown, you can reach us every day right around the clock. We will respond on site in no time with our fully equipped breakdown van. We undertake minor and immediate repairs as well as the repair of larger systems. We can provide emergency aid for all electrical issues. Our support reduces downtime to a minimum.

The highest reliability – for both our own and third-party systems.

We can offer you a comprehensive maintenance concept. Take advantage of our offer to prevent failures and benefit from the highest possible reliability.
Are you using products from other manufacturers? 

We also provide all our services for third-party systems. Thanks to many years of experience, our experts are familiar with the most common technologies. Please contact us, we will be happy to provide you with further information!

+49 231 77 55 - 0