supply of switch disconnector fuse unit of various ratings. supply of switch disconnector fuse unit of various ratings , switch disconnector fuse unit of 200 amps with hrc fuses in sheet steel enclosure , triple pole with neutral link with suitable earthing arrangements conforming to is :- 13947/1993 (pt-i &iii ) complete with handle assembly having door interlock in ‘’on’’ position with indicators for rated voltage of 415 v ,50 hz suitable for and bs typehigh rupturingcapacity cartridge fuses conforming to is:- 13703 & having rupturing capacity not less than 50 ka of rating 200 amps , category of duty ac -23a , switch disconnector fuse unit of 400 amps with hrc fuses in sheet steel enclosure , triple pole with neutral link with suitable earthing arrangements conforming to is :- 13947/1993 (pt-i &iii ) complete with handle assembly having door interlock in ‘’on-off ‘’position with indicators. the unit shall be suitable for rated voltage of 415,50hz ac-23a utilization categoryrupturing capacity not less than 80ka for1 second & conform to is:13947 part 3-1993/ iec 60947-3-1990 as amended upto date. the hrc fusesshallconform to is:- 13703 as amended upto date switch disconnectorfuse unit shall be of 400 a rated operational current