supply of insulation monitoring relayinsulation monitoring relay,insulation monitoring relay, 415v ac, 3phase, neutral isolated, voltage range 0-500v ac, insulation meas uring range : 10 k ohm to 150 k ohm, control voltage : 24-240v ac/dc, and place of installation s1a7, as per rdso sp ec.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 o hm/imd-im10, siemens cat no.3ug4581-1aw31, dold cat no. il 5880.12, contrel cat no. ir 470ly-21a, ri-r138, woka or bender only acceptable as per above spec. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]