The Siemens 3VA1163-1AA32-0KA0 is a 3-pole SENTRON switch disconnector in the 3VA1 IEC frame 160, rated for 63 A continuous current (Iu) with no overload or short-circuit protection built in — it's a pure isolating and switching device, not a circuit breaker. It ships with an integrated shunt trip (STL) release rated for 220-250 V DC or 208-277 V AC, meaning you can remotely trip the disconnect via a control signal — useful for emergency-stop chains or remote load shedding where the disconnect sits in a panel separate from the operator station.
The disconnect uses the 3VA1 MCCB-style form factor — 130 mm tall, 76.2 mm wide, 70 mm deep — with front terminals for busbar connection, so it mounts directly alongside SENTRON molded case circuit breakers on the same DIN rail or panel-mount busbar system without adapters. Front protection is IP40, adequate for enclosed panel mounting; the part is designed for the main current circuit, not for field-facing washdown environments.
Because it carries no overload or short-circuit protection, you pair it with upstream overcurrent devices; the 63 A rating and shunt trip make it a direct fit for applications needing remote isolation without adding a breaker's protection curve.