supply of hog a & b main power contactorshog a & b main power contactors,hog a & b main power contactors, 3pole, 1000v ac, 50hz, suitable for 500 kva, 750v ac on lo ad switching under ac-6a category at temperature of 70 degree c & coil voltage 415v ac+ 10%- 20% wi th surge suppressor, 2no+2nc, as per rdso spec no. rdso/pe/spec/d/tl/0195-2019 (rev.-0) suitable for s witchboard cabinet for hog compliant lslrd coaches. make (as per rdso spec bill of material) - abb (model no. af1250-30-11), l&t (model no. mvo 820), siemens (model no.3tf69448 cq7z a02) only. bidder should either be oem or authorized dealer of above make.authrisation certificate should be attached along with offer. [ warranty period: 30 months after the date of delivery ] => limited