supply of rc filter consist of 1 ohm ,6 w resistor connected in series with parallel.rc filter consist of 1 ohm ,6 w resistor connected in series with parallel.,rc filter consist of 1 ohm ,6 w resistor connected in series with parallel connected 1.5 micr o farad 850 v capacitor in each arm of 415 v circuit between phase to neutral & phase to earth circuit as p er rdso spec no rdso /pe/spec/ac/0184 -2015 rev-1 .or latest & bom letter no el/7.1.108/mssbc dt-17 -09-2021 acceptable makes as per bom :ask power tech model no ask-cs-017 or similar in abrol ,maa l axmhi bhasin packard ,nacei ,ael ,,ramya ,trolex, trinitron ,hind.sirveen only [ warranty period: 3 0 months after the date of delivery ] ]