The Siemens 3VA1163-1AA42-0CC0 is a SENTRON 4-pole switch disconnector built in MCCB design, rated for 63 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed as the panel warms up. It handles 690 V AC (50/60 Hz) or 600 V DC, making it a straight fit for 400 V three-phase distribution and DC bus isolation in the same enclosure.
That simplifies BOM sizing for a warm cabinet or a line-side disconnect near a motor drive. The front terminals accept busbar connection, which means it drops into a panel busbar system without extra adapters. IP40 on the front keeps finger probes out; the rest of the enclosure is the panel's own IP rating.
Undervoltage release and lifecycle
The optional motor drive allows remote operation if the panel is hard to reach.
The width matches standard 4-pole MCCB footprints, so it should fit existing panel cutouts or DIN-rail layouts without re-drilling.