supply of 11kv, 630amps, 50hz, 3way 2lbs 1cb non extensible two 2 motor operated lbs with manual operated earth switch, outdoor, sf6, ring main unit , 3 way rmu, 11 kv, 630a, 21 ka 3sec, sf6 outdoor rmu-2 lbs + 1cb, extensible/ non- extensible two (2) motor operated load break switches (lbss) with manual operated earthing switches in sf6 and one (1) vacuum circuit breaker with electrical closing and tripping alongwith disconnector and earthing switches scada compatible and base channel. battery charger along with batteries required for electrical operations of rmu is in the scope of the bidder. each module shall consist of vpis, fpi in lbs module (n-1) but not less than 1 nos per rmu. suitable arrangement for mounting frtu, modem or ethernet switch/liu alongwith battery, battery charger shall be provided in rmu.