The Siemens 3RV1935-6AA00-0FJ0 is a cover cap for connection lugs sized M3/M50, used to protect and seal the lug terminals on Siemens 3RV motor starter protectors and similar switchgear in a panel. This is a passive accessory — it covers the connection point, not a functional switching component — so fit is about thread size (M3 stud, M50 cable gland pass-through) and the specific lug footprint it mates with.
Integration Note
Snaps onto the lug terminal after the cable gland (M50) is tightened and the M3 stud connection is made. No tools beyond a standard screwdriver for the cap retention clip. Verify the cap's internal profile matches the lug shape on your specific 3RV overload relay or circuit breaker variant before committing the BOM line.