... .small volume and light weight facilitate installation. 1, Rated HV: 10(10.5, 11, 6, 6.3) kV, 20kV, 35kV2, Rated LV ... class is Ip20 or IP238, Wind-cool system and Temperature control system are both optional9, Real Maintenance-Free10, Absence of fire ... , High insulation ability under over-voltage condition16, Mounted in sites with adverse circumstances17, In case of forces air cooling, the rated ...