fabrication and supply of l.t. distribution panel box suitable for 63 kva substation, complete in all respect as per tender specifications. , fabrication and supply of l.t. distribution panel box suitable for 63 kva sub-station of size 900x800x200mm + / - 5% made of steel sheet 1.63 mm thickness having double door locking arrangement duly powder coated painted. complete with mccb 100 amps 3 poles having following specifications: ( in all respect. ) minimum frame size 100 amp., ( 2 ) type; fixed trip free, ( 3 ) breaking capacity-icu & ics at 415, 50 hz ( ka ) : not less than 35 ka ( 4 ) thermal release range : 40 amps. ( 5 ) mechanical life ( operation ) : 25000 nos. ( 6 ) electrical life ) operation: 7000 nos. ( 7 ) rated insulation voltage ( v ) :690 v ( 8 ) tripping thermal releasing setting: thermal o / l fixed setting ( 9 ) tripping magnetic releasing setting: magnetic –s / c fixed setting ( 12 in ) ( 10 ) ( operation ) voltage: 415 v, ac ( 11 ) calibration temperature : 40 degree c ( 12 ) high voltage withstand voltage: 3 kv for 1 minute ( 13 ) confirming to is:1993 / 60947-2, 1989 ( 14 ) make l&t / havells / schneider / abb ( 15 ) ics: 100%icu and having single circuit arrangement for 1 no outgoing feeder with kitkat 200 amps capacity. => limited