feeders - 1 & 2 and bus coupler power contactors, 3 pole, 1000 v ac, 50 hz, suitable for 500 kva, 750 v ac on load switching under ac-6 a category at temperature of 70 degree celsius & coil voltage of 110 v +25- 30 dc with surge suppressor, 2 no+2 nc. as per rdso spec. no. rdso/pe/spec/tl/0195-2019 (rev.-0) for switch board cabinet of hog complaint lslrd coaches, make abb af 1250-30-11, l&t mvo 820, seimens 3 tf 69338 df 4 za 02 + 3 tx 75723 h, l&t mv 0820
