Electric Wires : Sumitomo Wiring Systems, Ltd.

Automobile wires are sometimes exposed to vibrations, high and low temperatures, wind, and rain. Electric wires are required to work reliably with constant and stable performance even in severe conditions. Technical demands on wire harnesses have also grown, including reduction in their weight and size and ensuring environmentally friendly product development involving no harmful substances.

Since our foundation as an electric-wire maker, Sumitomo Wiring Systems has been a leading manufacturer of automobile wires through its development and production of automobile wiring harnesses. With our expertise and technical abilities, cultivated throughout our long history, we are meeting customers' evermore sophisticated and diversified needs.

Standard wires are used for low-voltage circuit wiring in cars.

Of the low-voltage circuit wiring in cars, heat-resistant wires are used inside engine compartments and other sections that need heat resistance. The upper-temperature limits are either 100 ℃ or 120 ℃.

Shielded wires are made by densely winding conductors outside electric wires to avoid electrical interference with the outside.

Halogen-free electric wire conforming to ISO standards is environment-friendly electric wire for automobiles and does not contain halogen or lead compounds. This wire contributes to a reduction of chlorine in shredded dust that is generated at the time of automobile disposal, thus ensuring ease of automobile thermal recycling.

Information on wire products produced by Sumitomo Wiring Systems.

You can see specifications by product type.