supply of a set of rotary switches consist 03 items: ( 1 ) rotary switch equivalent to l&t-salzer make part no. 6as6-ass-b13-tdyr suitable for ammeter phase selector ( r, y, b ) -01 no ( 2 ) rotary switch equivalent to l&t-salzer make part no, 6a-s6-61006-b13-tdyr suitable for on / off switch in switch board cabinet ( sbc ) of lhb ac coach-3 nos. and ( 3 ) rotary switch with marking i-0-ii net-1- local main supply- net-2 ( change over switch with off position 3 pole ) equivalent to l&t-salzer make part no. 6a-s6 61090-b13- tdyr suitable for net selection in the sbc- 3 nos. make-l&t salzer, siemens, schneider only