These products are highly integrated, compact in size, structurally compact, safe and reliable in operation, easy to maintain, and portable. In distribution systems, they can be used in ring network distribution systems as well as in dual power supply or radial terminal. View the TI High-voltage power distribution box block diagram, product recommendations, reference designs and start designing. What is a high voltage box? The High Voltage Power Box combines the functionality of an Onboard Charger (OBC), a DC/DC converter and a PDU (Power Distribution Unit). The OBC is the interface between the car and the public grid. The focus here is on solutions for manufacturers of mobile machinery. VIOX distribution boxes utilize high-quality ABS plastic, offering exceptional durability and electrical insulation. Choose VIOX. To address this, HUBER+SUHNER provides comprehensive high voltage solutions designed to handle power flow safely and efficiently.