Tenders for Supply of Insulator Resistance Monitor Ralay According To Iec 61557 - 8. I Rated :Control Supply Voltage: 220V Ac +/- 10% Min. Tolerance, Ii Voltage Of Distribution System To Be Monitored : 240V/415V Ac +/- 10% Min.Toterance, Iii Mounting : Din Rail 35 Mm. Iv Maximum Permissible Overall Dimensions Wxhxd : 52.5 X 85.6 X 115Mm., V Adjustable Tripping Setting Range : 10 - 100 Kilo Ohm.