HST-B-120-RD-A-24KV HST-B-120-RD-A-36KV HST-B-120-RD-R-24KV HST-B-120-RD-R-36KV HST-B-180-RD-A-36KV HST-B-180-RD-R-36KV HSTBV 1500-000 HSTBV-D00 HSTCOL HSTCOR