SAE J3253_202508

This SAE Recommended Practice (RP) covers the general guidelines for conductive power transfer of high voltage Direct Current (DC) between OEM commercial truck chassis electrical systems and electrically powered body accessory equipment. The OEM chassis can have an EV drive train or be a hybrid chassis with or without a connection for traditional mechanical Power Take-Off (PTO). The chassis can include use of range extension systems. Voltage levels are defined as greater than 60 VDC and include typical EV chassis voltage ranges up to and including 1500 VDC based on selected component capabilities. It also covers limited functional requirements for the connection systems, body builder communication modes, and suggested operational modes. The scope of the Electric Power Take-Off (ePTO) physical electrical connection will be limited to a recommendation of the interface concept, space claim, and service features and will leave connector features and design open for future definition.

Product Details