Our meticulous production according to international and German standards by our highly qualified employees and final assessment on state-of-the-art test fields under practical conditions with low and medium voltage ensure the high quality standard . We offer a wide range of services to ensure maximum safety, availability and life time of your system.

More than six decades of know-how and expertise have been incorporated into the planning and production of backup power supply solutions with the required infrastructure such as exhaust systems, ventilation technology, controls and fuel systems. Our strength are individual custom solutions.

With its combined range of UPS and EPS, FRERK can provide a sufficient total package for an integrated, reliable power solution. This ensures that critical infrastructures and data centres continue to operate smoothly and for a sufficiently long time in the event of power grid irregularities and failures, that data integrity is protected and that continuity of services is ensured.

As a manufacturer-independent and experienced system integrator, we use motors, generators, batteries and control cabinets from well-known OEMs from all over the world. We supplement high-quality and perfectly coordinated components for exhaust air, air conditioning, fuel supply, sound insulation and others to create an optimized power generation solution as required.