Push Button Red 110V Dc, Dia 22.5 Mm For Switching Off K-49 Light Contactor And For Checking Ael,Emergency Light Unit, And Pl Ace Of Installation S1S09 & S1S10 As Per Rdso Spec.No. Rdso/Pe/Spec/Ac/0184-2015 (Rev.1) & Bom Lr.No. - El/7.1.108/Mssbc Dt. -17/09/ 2021 Suitable For Lhb Type Ac Coaches Switch Board Cabinet. Acceptable Makes As Per Rdso Bom. [ Warranty Period: 30 Months After The Date Of Delivery ] ]