supply of insulation monitoring relay, 415v ac, 3 phase, neutral isolated, voltage range 0-500 v ac, insulation measuring range-10 k ohm to 150 k ohm, control voltage: 24 - 240 v ac/dc, and place of installation s1a7, as per rdso spec. no. rdso/pe/spec/ac/0184-2015(rev.1), & bom lr no el/7.1.108/mssbc dt. 17.09.2021 suitable for lhb type ac coaches switch board cabinet (s1a07). 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: il5880.12, , contrel cat no. ir 470ly-21a, ri-r138, woka (or) bender. only acceptable as per above spec.insulation monitoring relay, 415v ac, 3 phase, neutral isolated, voltage range 0-500 v ac, insulation measuring range-10 k ohm to 150 k ohm, control voltage: 24 - 240 v ac/dc, and place of installation s1a7, as per rdso spec. no. rdso/pe/spec/ac/0184-2015(rev.1), & bom lr no el/7.1.108/mssbc dt. 17.09.2021 suitable for lhb type ac coaches switch board cabinet (s1a07). 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: il5880.12, , contrel cat no. ir 470ly-21a, ri-r138, woka (or) bender. only acceptable as per above spec.,insulation monitoring relay, 415v ac, 3 phase, neutral isolated, voltage range 0-500 v ac, insulation measuring range-10 k ohm to 150 k ohm, control voltage: 24 - 240 v ac/ dc, and place of installation s1a7, as per rdso spec. no. rdso/pe/spec/ac/0184-2015(rev.1), & b om lr no el/7.1.108/mssbc dt. 17.09.2021 suitable for lhb type ac coaches switch board cabinet (s1a07). acceptable makes as per bom: abb cat no:cm.iws.2s, schneider cat no. vigil ohm/i md-im10, siemens cat no. 3ug4581-1aw31, dold cat no: il5880.12, , contrel cat no. ir 470ly-21a, ri-r138, woka (or) bender. only acceptable as per above spec. [ warranty period: 30 months aft er the date of delivery ] ]