BYD CBH-70A Battery-Box Combiner Box Plus

The BYD CBH-70A is a combiner box designed for parallel connection of 2 or 3 BYD Battery-Box premium HV battery towers (HVS, HVM, HVB, HVM+, HVS+, HVE models). It consolidates multiple DC battery strings into a single cable run to the inverter, providing safe and organized DC cabling connections.

Key specifications include a maximum output current of 70 A, maximum input current of 50 A per tower, and operating voltage up to 1000 V. The unit is wall-mounted with IP65 enclosure protection, natural convection cooling, and operates from -20 °C to +50 °C in altitudes below 4000 m. All connected towers must have the same module quantity and state of charge upon installation; mixing different battery models is not permitted.

Certified to EN IEC 61439-1/2, AS/NZS 61439-1/2, and includes RoHS and REACH compliance. Compatible with BYD's Premium HV inverter list.