Deutsche Version

Because every fraction of a second counts 

  image: certification of business registration of hopf Elektronik GmbH, 15.05.1972


Dear customers and partners!

This month we are very glad because we - along with you - are able to look back on 45 successful years of hopf Elektronik GmbH! On this occasion allow us to say Thank you for your loyalty and our long-lasting cooperation!

As doors of hopf Elektronik GmbH have been opened on May 15, 1972, our company has focused on developing and producing DCF77 radio clocks. Since then our know-how regarding time synchronization as well as our product portfolio have been expanded dynamically, so that our company could rightly be considered as your international partner in the field of highly-precise time synchronization solutions:

  • industrial time reference systems
    master and submaster clock systems for the output of highly precise signals for synchronization and time stamping of industrial applications, protection relays, SCADA systems, and networks
  • network time server appliances
    for accurate synchronization of computer and automation networks (e.g. IEC 61850) with NTP (Network Time Protocol), PTP (Precise Time Protocol) and PRP (Parallel Redundancy Protocol) as well as many other protocols
  • signal and protocol converters
    for distribution and conversion of electrical and optical signals or time protocols
  • antennas and accessories
    for receiving highly-precise time signals from terrestric and GNSS-based signal sources
  • analogue clocks and digital displays for displaying information about time and date

Our innovative products are used by well-known companies across the globe to implement highly-precise signals for the synchronization and time stamping of industrial applications, computer networks, industrial networks or to successfully run complex industrial projects.

Our in-house development, production and sales as well as our lean organization and short lines of communication always guarantee the consistent high quality of our products.

By constant communication with our customers, continuous cooperation and support in all matters and through a network of like-minded partners, we remain at the cutting edge of customer needs worldwide.

Whether we are talking about the Metro in Guangzhou or Bangkok or the pipeline in Ingolstadt, whether our business partner is ABB, Siemens, Honeywell or YOU:

Our customers are our partners -
whatever we can do for them - we do!

And that's quite a lot after 45 years.

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hopf Elektronik GmbH, Nottebohmstraße 41, 58511 Luedenscheid, Germany
Phone: +49 (0)2351 93 86-86 / Fax: +49 (0)2351 93 86-93 / E-mail:
Managers: Erich Ruprecht / Wolfgang Kanovsky / Michael Hocke
published by department: Marketing & Sales
responsible for the content: Erich Ruprecht (Chief Executive Officer)
HRB: 4099 (register court of Iserlohn) / VAT-ID: DE811515750 / Jurisdiction: Lüdenscheid