With over 80 years' experience, Callenberg Technology Group is a leading manufacturer of high quality main and emergency switchboards for the maritime & offshore markets.

  • Maritime and offshore power distribution solutions, from shore power to the on-board consumer
  • In-house switchgear design, production, installation & commissioning
  • Engineered for the harsh environmental demands of the maritime and offshore markets
  • Flying squads and spares hubs support our customers globally
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Brand independent

At our switchboard production facility in Denmark, we produce, test, install and commission switchboards for yards, ship owners, offshore and industrial installations.

We are brand independent - to support fast and cost effective operational maintenance, we design and engineer our solutions based on the requirements of the project and with components that are readily available world-wide.


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Custom build switchboard solutions

Our range of high quality switchboard solutions includes;

  • Main switchboards
  • Emergency switchboards
  • Starters
  • Distribution panels
  • Shore connections
  • Electric propulsion lines