Supply of Feeder-1&2 And Bus Coupler Power Contactors, 3 Pole, 1000 V Ac, 50 Hz, Suitable For 500 Kva, 750 V Ac Onload Switching Under Ac-6A Category At Temperature Of 70 Degree Centigrade & Coil Voltage Of 110 V+ 25%-30% Dc With Surge Suppressor, 2 No+2 Nc For Lslrd Coaches As Per Rdso Specification No .Rdso/Pe/Spec/Tl/0195-2019 Rev.-0Or Latest.