supply of procurement of set of isolation switches consisting of following three items: etc.procurement of set of isolation switches consisting of following three items: etc.,set of isolation switches consisting of following three items: (i) rotary switch 63 amp, 440v with grey front plate and black knob, 4 way, 8 pole. make: kaycee/salzer/jai balaji or similar - 01 no. per set (ii) rotary switch with yellow front plate and red knob, 3pole, 80a, 690 v ac 50/60 hz confirms to iec/e n 60947-3. make: schneider/salzer/abb or similar - 01 no. per set (iii) knife switch 2pole 250a 50 hz, wi th suitable handle operation, on-off type, up & down handle alignment with ss box housing as per is: 139 47/pt-iii & iec: 60947-3, make: no restriction - 01 no. per set. [ warranty period: 30 months after the dat e of delivery ] ] => limited