supply of vcb for vb spare , vcb for use in vande bharat train sets to clause no. 4.27 of rdso specification no. rds o/pe/spec/emu/0196-2019 rev-0 along with latest annexure and addendum/corrigendum with compl ete adherence to overall general arrangement to icf drg no. icf/sk3-7-2-075, alt-b or latest ip67 prot ection class for external portion and ip20 for internal portion, vcb shall be provided with minimum 3 n o +5 nc auxiliary contacts and technical parameters confirming to clw spec. clw/es/c-47 alt-j. not e: 1.connector pin configuration of vcb shall be suitable to vande bharat train sets 2.schematic wirin g diagram and connector pin configuration drawings shall be submitted to icf for approval before co mmencement of supplies [ warranty period: 30 months after the date of delivery ] ]