Tender For supply of thermaloverloadrelay of 40-57 amp range, suitable for independent mounting, confirming to is: 13947 -1, as per sr.no. -5 of bill of material of rcf specification no edts-041 rev-b annexure 'a' & confirming to rcf specification no edts-041 rev 'b', suitable for use in pre-cooling battery charger of ac coaches.accepted make- as per s.no. 5 of bill of material of rcf specification no edts-041 rev-b annexure 'a'