3 Phases Isolating Switch 1. 12kV,400-1200A, 50Hz,3 phases 2. Usage: Power 3. ... L/C or T/T 4.Material:porcelain 12kV ,400-1200A, 50Hz, 3 Phases Isolated Switch GN19-12Q Technical ... (Peak) (kA)Thermal Current in 4s(r.m.s.)(kA)1GN19-12Q/400121040031.512.52GN19-12Q/63063050203GN19-12Q/100010008031 ... outline drawings shall be provided upon request. 12kV ,400-1200A, 50Hz, 3 Phases Isolating Switch GN19-12Q