High voltage junction boxes for charging heavy-duty EVs

Sensata's solutions include DC charging boxes that support megawatt charging of medium and heavy-duty electric trucks up to 850 volts and 1300 amps.

Combining Sensata's proven contactor, fuse, and controller technologies into a compact package, the new high voltage junction boxes are custom designed for specific vehicle requirements.

Driven by the need for fast charging, electric vehicle manufacturers require systems that can handle higher charging power levels. “We have successfully optimised our contactor and fuse design to meet the increased thermal performance that megawatt charging requires while keeping within tight space constraints,” said Brian Wilkie, Vice President, Heavy Vehicle & Off-Roadat Sensata Technologies.

“Sensata’s unique capability to design all the safety critical components of the solution – like contactors, fuses, control boards and software – in-house was instrumental in securing new strategic agreements with industry leaders for our custom power management and protection solutions, which help simplify our customers’ production processes.”

To meet current carry and temperature requirements, Sensata’s cooling and temperature control technology directly interfaces to the busbars and provides exceptional cooling efficiency within tight space restraints. For additional safety, Sensata’s isolation monitoring design ensures isolation of the high voltage from the chassis. The solutions’ software and controllers are built on the AUTOSAR platform.

More information on Sensata’s high voltage junction boxes can be found at www2.sensata.com/hvjb.