supply of disconnecting & earthing device, 8 poledisconnecting & earthing device, 8 pole, disconnecting & earthing device, 8 pole, 2 way, on-off, on load 63a, 750v ac ( 1000- insulation ) 2no + 2nc with heavy handle & pad locking arrangement in earth position mounted without sheet steel / stainless steel enclosure suitable for ac-23 duty conforming to rcf specification edts- 355 ( rev-1 ) . product is l&t part no. 73342 slb321 ogb or schaltbau part no. m137 0827407 or equivalent part of salzer. material shall procure from oem or his authorized dealers only. hsn code is 85359090 [ warranty period: 30 months after the date of delivery ]