What are the high voltage cable assemblies of new energy vehicles? Apr 25, 2023

Among the new energy vehicles (pure electric as an example) high voltage cable assemblies can be divided into 5 parts

1. Power battery high voltage cable: that is, the wiring bundle between the power battery and the high voltage box.

2. Motor controller cable: that is, the cable connecting the high voltage box to the motor controller.

3. Fast charging wire harness: connect the cable assembly between the fast charge mouth to the high pressure box.

4. Slow charging wire harness: that is, connect to the auto wiring harness between the slow converter to the vehicle charger.

5. High voltage attachment cable (high voltage wire harness assembly): that is, connect to the cable assembly between high voltage boxes to DC/DC, vehicle charger, air conditioner compressor, and air conditioning PTC.

EV cable 



Large current performance:

According to the current volume of high voltage system components, it is often used at 250A, and some high power motors can be used for 400A.

Temperature resistance performance:

High temperature resistance ranges from 125 ° C, 150 ° C, and 200 ° C. High temperature conventional selection of high temperature resistance 150 ° C wire; low temperature conventional selection of low temperature -40 ° C wire.

Shielding performance:

Shielding high voltage cables can reduce the impact of electromagnetic interference (EMI) and radio interference (RFI) on the vehicle system. The entire high voltage cable assembly circuit realizes the shielding connection. The high voltage cable shielding layer of the interface of motors, controllers and batteries is connected to the battery motor controller shell through the plug -in and other pressure connecting structures, and then connected to the car body.


Aichie provides all kinds of high quality auto wiring harness and ev cable assembly around the world. It has introduced new production equipment, which greatly improves the quality and efficiency of production. Customers are widely distributed in Europe and North America. Production employees and experienced engineering teams and sales teams serve our customers; please contact us now! We will provide you with competitive prices!


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