The Siemens 3VA1163-1AA32-0AG0 is a SENTRON switch disconnector in a 3VA1 IEC frame 160, 3-pole, rated 63 A. It is built in an MCCB-style housing — same footprint, same DIN-rail or screw-mount panel integration as a molded case breaker — but it carries no overload protection and no short-circuit protection. It is a straight disconnect: on-off isolation only, with a visible break for lockout/tagout. That is unusual for a device this compact and means you can size the panel for the full 63 A without worrying about ambient heat stacking from adjacent drives or transformers.
The housing measures 70 mm deep, 76.2 mm wide, and 130 mm tall — a standard 3-pole MCCB envelope that drops into the same DIN-rail or panel-mount cutout as a SENTRON 3VA1 breaker. Front terminals for the main circuit accept busbar connections. The auxiliary contact block comes pre-configured: one auxiliary switch (HP) plus one trip alarm switch (HP), giving two CO contacts total. That is enough to signal position back to a PLC or light a panel indicator without adding a separate auxiliary module. A nut keeper kit is included in the box — saves a trip back to the van if you are swapping this in on site.
The 63 A continuous rating at 690 V AC / 500 V DC defines the maximum load current this disconnect can carry and interrupt under normal conditions. Because there is no overcurrent release, the upstream protection (a fuse or circuit breaker) must be sized to protect the cable and load — this part is purely a manual isolation point. Mechanical service life is 15,000 operating cycles — typical for a disconnect in this class. If your application cycles it daily for lockout, that is roughly 40 years of service.