EFEN GmbH was founded in 1922 by Otto Frees in Neudorf, which today is known as Martinsthal. The original activities concentrated on the assembly of electrical fuses for the automotive industry. Very soon, the product portfolio was expanded by the production of fuses for all kinds of applications including current-limiting fuses for low- and medium-voltage power distribution systems. At the start of 2006 the EFEN Group was bought by the Swiss Weber AG, a company belonging to the Hager Group.

Products Range

  • Changeover Switches.
  • Load Break Switches.
  • Switch-Fuses.

Fiber Optic Technician

This Accredited and Certificated Fiber Optics Technician Course is designed for anyone interested in becoming a Fiber Optics Technician or who needs to understand or use Fiber Technology within their job.

Maintenance & Calibration

You expect daily availability of your measurement systems and uniform quality of the measurements. Preventive maintenance and a regular calibration are absolutely essential.

Technical Field Support

Standing by to support all of your technical requirements, technical and field support team leverages decades of experience and technical knowledge to quickly resolve any challenge