Isoblock Schaltanlagen GmbH & Co. KG

Anton-Storch-Straße 17DE49080Osnabrück
Phone:+49 (0)541 9590 90
Fax:+49 (0)541 95909 50
Planning, execution and implementation - all from a single source!

Isoblock designs, manufactures and installs transfer and transformer substations with integrated grid protection and telecontrol technology with a focus on cost-effectiveness, quality and reliability.


Our system-oriented full service package guarantees a consistently smooth process flow with a direct contact person. Experienced engineers and our qualified assembly team ensure the highest quality products "made by ISOBLOCK" in terms of technology and craftsmanship.

Transfer and transformer substations:

Our services in the field of renewable energies include project planning, delivery, installation and maintenance of medium-voltage switchgear, transfer and transformer substations up to 36 kV according to the "plug & play" principle. Isoblock systems offer maximum personal protection and operational safety through reliable electrical and building services engineering. On request, we can also take care of transport and installation on site - including implementation and instruction of our customers.

We have the right solution for your individual application. Well-known customers throughout Europe rely on transfer and transformer substations from Isoblock! Together, we have successfully implemented the grid connection of more than 3,000 wind turbines with a total output of over 7,000 MW and more than 1,000 MWp of solar energy.

Grid protection and telecontrol technology:

We plan, manufacture, and parameterize innovative grid protection technology and implement it on site, if necessary together with the customer and the grid operator or energy supplier. Of course, in accordance with the current Technical Connection Guidelines.

Gas-insulated & air-insulated medium-voltage switchgear:

Gas-insulated or air-insulated medium-voltage switchgears and measuring transformers, type-tested according to IEC 62271-200, EEG-compliant and in accordance with guidelines of the network operators are also part of our transfer and transformer substations, as are the standardized energy billing systems.

Mobile Isoblock system visualization:

Everything in view at all times: [mIA], with the mobile Isoblock plant visualization. Our monitoring technology informs you 24/7 about the status and productivity of your medium-voltage, industrial and EEG plants. Without much effort, both new and existing plants can communicate on a state-of-the-art level thanks to [mIA] - individually adapted to your requirements!

Our system transmits the switching states of your plants as well as the current, voltage and power values from your plant control system and current messages from the protective relay directly to your smartphone. Even before the service personnel arrive, you can find out whether your plant has been disconnected from the grid due to a short circuit, voltage or frequency fluctuation. The necessary measures can be planned directly and downtimes can thus be optimized.


Our service starts with planning the right system for you and your needs. We support you in applying for subsidies and coordinate the details with the local energy supplier or grid operator. The provision of the transformer substation including battery storage, remote monitoring and connection to back-end systems complete the coherent concept. Modern payment systems can also be easily integrated.

Isoblock's intelligent all-in-one system includes all the components you need for optimal operation of your private or commercial system.

Maintenance and service:

Even after implementation, we remain a partner for our customers - we offer individual maintenance concepts, service as well as all services related to your transfer substation. If problems should still arise, our competent 24/7 emergency service is there to help - 365 days a year!

more data:
  • Founded: 1966
  • Employees: 100+