Insulation Monitoring Relay, 415V Ac, 3 Phase, Neutral Isolated, Voltage Range 0-500 V Ac, Insulation Measuring Range-10 K Ohm To 150 K Ohm, Control Voltage: 24 240 V Ac/D C, Place Of Installation S1A7, Of Bill Of Material Of Rdso Spec. No. Rdso/Pe/Spec/Ac/0184-2015( Rev.1), Used For Insulation Control 415 V Of Lhb Type Ac Coaches, Confirming To Rdso Spec. N O. Rdso/Pe/Spec/Ac-0184-2015 (Rev.1), Suitable For Lhb Type Ac Coaches Switch Board. Acceptabl E Makes-Abb. Cabinet (S1A07), Abb (Cat No: Cm-Mps.43S.), Schneider Cat No. Vigil Ohm/Imdim10, Sie Mens Cat No. 3Ug4581-1Aw30/31, Dold Cat No: Il 5880, Contrel Cat No. Ir 470Ly-21A, Ri-R138. [ W Arranty Period: 30 Months After The Date Of Delivery ] ]