New Technologies Used In
Electric and Hybrid Vehicles

Staying Ahead of the Curve

Environmentally-Friendly Solutions

Sumitomo Electric Wiring Systems is aggressively working on developing technologies that are environmentally friendly. One manifestation of this can be seen in our products for the electric and hybrid vehicles. We offer a line of original products to meet our customers’ needs.

Motor Cables for Hybrid Vehicles

This high-voltage cable connects the inverter with the motor. It is designed to withstand voltages exceeding 200 volts as well as currents far higher than seen in gasoline-powered vehicles.

Junction Blocks for High Voltage

This product centralizes the junctions for circuits sending high-voltage, high-current power to the hybrid vehicle’s systems and places them all in one box. While functioning as a central connection for these circuits, it also includes relays, current sensors, and other related components.


An EV (Electric Vehicle) is an “electrically-powered vehicle” driven solely by an electric motor.

An HEV (Hybrid Electric Vehicle) is a car that is powered by an internal combustion engine as well as an electric motor. It is also called a “hybrid vehicle”.

A PHEV (Plug-In Hybrid Electric Vehicle) is a hybrid vehicle whose battery can be charged by plugging into a home or another available power supply.