not if you need to keep part of the data on the source table - a SWITCH means all table contents gets "moved" to a new table, or 1 partition on the original table gets moved to the corresponding partition on the second table.
depending on how active that table is and if you can easily identify the changed data (inserted/deleted/updated) then you may be able to prepare in advance for a move that would leave the original table with just a current required subset of data.
if you wish the new table to become your main new table that would require a few more steps but nothing major.
but regardless of method you will always have a few seconds/minutes where original table will not be available for any operation.