Direct Current BV

We realise smart DC systems. Worldwide leading innovations in the development of safety applications and controls for a DC grid in public and commercial areas, and homes.


We develop and build solar power optimizers and inverters. We provide renewable energy solutions: maximization of solar energy in a safe and reliable way.

Hellas Rectifiers

We create and build transformer rectifiers worldwide. A full range supplier of rectifiers for all industries based on more than 60 years experience.

Amstel Rectifiers

SMPS for professional applications worldwide for more than 25 years. We offer complete solutions and full support in our own brand of Amstel Rectifiers.