procurement of lt distribution panel box for 250kva supply of lt distribution panel box for 250kva of various sub-divisions working under operation circle, hpsebl, hamirpur under ceohz, hpsebl, hamirpur , lt distribution panel box suitable for 250 kva transformer/sub station of size 1100x800x275 mm +5% made of steel sheet of 1.63mm thickness having double door locking arrangement duly powder coated painted complete with mccb 400amps 3 poles having following specifications (1) minimum frame size 400 amp (2) type;variable trip free (3) breaking capacity-icu & ics at 415, 50hz(ka) : not less than 25ka (4) thermal release range : 320-400amp (5) mechanical life (operation) 20000nos. (6) electrical life (operation) 4000nos (7) rated insulation voltage (v) : 690v (8)tripping thermal releasing setting : thermal o/l variable setting (9) tripping magnetic release setting : magnetic- s/c fixed setting(12in) (10) (operation) voltage: 415v, ac (11) calibration temperature : 40degree c (12) high voltage withstand voltage : 3kv for 1minute(13) confirming to is:1993/60947-2,1989(14) make l&t/havel/schneider/abb 15) ics: 100% icu rectangular type aluminium alloy bus bar of 150 amps having length 600mm for phase, 450mm long for neutral outgoing feeders 2 no. outgoing feeders shall be made in the panel u type rewirable kit-kat fuses of 400 amp shall be provided in all three phases the panel should be fully wired with insulated copper wire shall have adequate clearance as per specifications => limited