Insulation Monitoring Relay 110 Volt Ac, Range 50 V To 200 V Ac Insulation Measuring Ra Nge 25 Kilo Ohm To 100 Kilo Ohm, Control Supply-230 Volts, 50 Hz Having Fault Memory Test And Reset B Utton And Alarm Lead As Per Rcf Specification Edts-073 Rev D Amend 3. As Per Drg.No. Nil Specn: Rcf Specification Edts-073 Rev D Amend 3 [ Warranty Period: 30 Months After The Date Of Delivery ] ]