ShellDialaS4 ZX-I is oil, which is made from specially purified naphthenic raw materials with very low sulfur content. The oil has a very high oxidative stability, good dielectric and excellent low-temperature properties, the water content is lower than that required by the industrial standards for oil in the delivery state.

Application. The oil is used in all types of power transformers (generator, distribution, shunt reactors), as well as devices such as rectifiers, switches and switchgears.