supply of feeders-1&2 and bus coupler power contactors etcfeeders-1&2 and bus coupler power contactors etc,feeders-1&2 and bus coupler power contactors, 3pole, 1000v ac, 50hz, suitable for 500 kv a, 750v ac on load switching under ac-6a category at temperature of 70 degree celsius & coil voltage of 1 10v +25%-30% dc with surge suppressor, 2no+2nc, as per rdso spec no. rdso/pe/spec/tl/0195-2019 ( rev.-0) or latest. acceptable make abb- af1250-30-11, l&t - mvo 820, siemens- 3tf69338df4z a02+3tx 75723h suitable for switch board cabinet of hog compliant lslrd coaches. make-abb/l&t/siemens only [ warranty period: 30 months after the date of delivery ] ]