South Central Railway

South Central Railway has published Supply Of insulation monitoring relay, 415v ac, 3phase, neutral isolated, rated voltage range 0-500v ac, insulation measuring range : 10 k ohm to 150 k ohm, control voltage : 24-240v ac/dc, and place of installation s1a7, as per rdso spec.no. rdso/pe/spec/ac/0184-2015 (rev.1) or latest & bom lr.no. - el/7.1.108/mssbc dt. -17/09/2021 or latest, suitable for lhb type ac coaches switch board cabinet (s1a7).acceptable makes as per bom: abb cat.no.cm.iws.2s, schneider cat no. vigil ohm/imd-im10, siemens cat no.3ug4581-1aw31, dold cat no. il 5880.12, contrel cat no. ir 470ly-21a, ri-r138, woka and bender only acceptable.. Last date of submission for this tender is 2026-07-01. This is a Switch Supply tender in null, Andhra Pradesh