TEFELEN is the first American company providing special low voltage and medium voltage cast resin insulated Busbar systems. Together with its strong partner Phoenix Mecano, an international stock-listed technology company, TEFELEN is working to establish and strengthen the application of cast resin Busbar systems throughout the American market.

Being a member of TEFELEN Group we will use the knowledge, competence and longstanding experience of its partner companies. TEFELEN Group is pooling the capacity of TEFELEN, TEFELEN Preissinger GmbH (Germany) and RTC-ELECTRO-M (Russia), and is the most powerful supplier of low and medium voltage cast resin systems worldwide.

The range of products offered by us comprises:

Low voltage systems:

   АС  DC
Nominal voltage Up to 1,2 kV Up to 2 kV
Nominal current  Up to 12 000 А Up to 14 000 А


Medium voltage systems:

   АС   DC
Nominal voltage Up to 36 kV Up to 60 kV
Nominal current  Up to 12 000 А Up to 14 000 А


Our cast resin insulated Busbar systems represents a new and innovative solution for power solutions in the field of low and medium voltage.

To achieve our goal of a greater market position we want to build long term relationships with our customers based on outstanding quality and service.  To help with this we are designing and building our own new production facility here in the USA.

In October of 2018, we held our Grand Opening Event in Frederick, MD. Our hard-working team at TEFELEN is looking forward to a prosperous future, and is excited to push the technology of electrical energy to new heights! If you were unable to attend the event, you may be interested in our photo gallery.