supply of supply of rotary selector switch 4 pole, 6 way 150 suitable for 25 kva at cls panel as per is 13947/part5/sec.1 of 1993 & is/iec 60947- 3 (1999) or latest. it shall be of flush type. the contacts shall be of robust design and have le cross-section for carrying continuously 150 a for 25 kva at and be of positive make type to avoid any sparking. the rotary switch shall be enclosed with a transparent cover to prevent accidental/ inadvertent/ interference to circuit. it shall conform to is 13947/part5/sec.1 of 1993 & is/iec 60947- 3 (1999) or latest. the selector switch (special mode selector switch ) shall have the following six positions: -(i) off (ii) main supply (iii) standby one supply (iv) standby two supply (v) off (vi) auto , supply of rotary selector switch 4 pole, 6 way 150 amp suitable for 25 kva at cls panel as er is 13947/part5/sec.1 of 1993 & is/iec 60947- 3 (1999) or latest. it shall be of flush type. the contacts sh all be of robust design and have ample cross-section for carrying continuously 150 a for 25 kva at and be of positive make type to avoid any sparking. the rotary switch shall be enclosed with a transparent cover t o prevent accidental/ inadvertent/ interference to circuit. it shall conform to is 13947/part5/sec.1 of 1993 & is/iec 60947- 3 (1999) or latest. the selector switch (special mode selector switch ) shall have the followin g six positions: -(i) off (ii) main supply (iii) standby one supply (iv) standby two supply (v) off (vi) auto [ w arranty period: 30 months after the date of delivery ] ]