Hitachi Hi-Rel offers an exhaustive and pioneering product range of power electronics products with complete customized solutions to keep customers ahead in this competitive arena. Hitachi Hi-Rel offers an exhaustive and pioneering product range of power electronics products with complete customized solutions to keep customers ahead in this competitive arena. Hitachi Hi-Rel deals with a varied range of products, such as UPS, drives, solar inverters and customized power electronics products.