supply of procurement of multifunctional monitoring relay etc , multi functional monitoring relay 3 phase, 3 wire/4 wire with adjustable th resholdes, adjustable triping delay, monitoring of phase sequence and phase failure, v oltage monitoring (under and over voltage), installation 35 mm din rail conforming to standard en 60255-6, rated supply voltage 280-520v ac with self extinguishing propertie s as per rdso specification no-rdso/pe/spec/ac/0184-2015(rev.1) & rdso letter no.el/7.1.1 08/mssbc dtd 17.09.2021 to abb model no.cm mps, 41s or carlo gavazzi model no.dpc01d m48.400/480 or simens model no.7ug0818-ica20 or schneider model no.rm22tr33 or dold model no.bd9080.12 or phonex model no.mr-es-3 v-400( 1217805) or l&t model no.mg53bh l&t mg53bh. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]