supply of high capacity inter vehicular coupler 500amps 750 vhigh capacity inter vehicular coupler 500amps 750 v,high capacity inter vehicular coupler 500amps 750 v, 3 phase50hz complete set asper r dso spec. no. rdso/pe/spec/ac/0177-2013 rev-1.one complete set consist of (1) 02 nos. jumper plug a ssembly,(2) 02 nos. coupling socket assembly, (3)02 nos. dummy socket assembly (4) jumper cable duly crimpled with each jumper plug and cover with flexible polyamide conduits and its fitting length 2.6mete rs (5) jumper cables duly crimpled with each coupler socket. note: material to be supplied along with all r elevant & applicable test certificate or approved tpi certificate. [ warranty period: 30 months after the date of delivery ] ]