Compact, lightweight and safe In order to quickly cut the gap with high voltage direct current, hydrogen gas with excellent arc cooling capability is sealed in the capsule contact chamber. At the same time, because of the use of the explosion-proof structure to prevent arc leakage, so can achieve higher safety. • High contact reliability Because the contact part is sealed with hydrogen, no contact oxidation occurs. It is also dust and water resistant. • The rich lineup also offers operating types with quiet types and types with high short circuit capacity. In addition, the product family includes many all-in plug-in types as well as high current-carrying types. Typical applications • Electric vehicles (HEV, PHEV, BEV, and FCVS) • Battery charging and discharging systems • high-voltage DC applications, such as hybrid construction equipment