Low Voltage Withdrawable Switch Cabinet Applications GCS devices are appropriate for power distribution systems in power plants, petroleum, the chemical industry, metallurgy, textiles, high-rise structures, and other industries. In areas with a high level of automation, such as big power plants and petrochemical systems that require computer connections, the three-phase AC frequency is 50 (60) Hz, the rated operating voltage is 380V (400V), (660V), and the rated current is 4000A or less.
