– The best manufacturers are SENTOP, Schneider Electric, and Rockwell Automation. These show the product is safe and follows the rules. Energy storage high voltage distribution box supplier ran 24 were: CATL,EVE Energy,BYD,Hithium Energy Storage,and CALB. Stability: With years of industry experience,CATL maintains a clear marke advantage and firmly holds the. AVENTECH provides its technical expertise right from the preliminary design phase with end customers, electrical grid operators and EPC. We work on the European/international regulations and meet all applicable levels of VHV voltage (63/90/225 kV) and HV voltage (15/24 kV/36 kV). High-voltage test stand ➞ As with the. 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. It converts the energy from the network grid AC (Alternative Current). The high voltage solutions for power distribution developed and produced by Würth Elektronik ICS ideally complement the established portfolio of central electrical units and Power Boxes for 12/24 V vehicle electrical systems.