Delay higher by default jQuery autocomplete to prevent premature sending of requests to the server (if this is a request for a circuit)
Local data should be instantaneous (unverified, but there is no reason not to)
However, common practice either limits the minimum number of characters or the time delay before querying the database (imagine if you had a large data set and they requested it using j, then jo, then joh, then john) to avoid wasteful query execution