The Siemens 3VA1163-1AA32-0HH0 is a SENTRON 3-pole switch disconnector in the 3VA1 IEC frame 160 platform, rated for 63 A continuous current (Iu) without integral overload or short-circuit protection — it is a pure disconnect, not a breaker. It is designed for applications where isolation and switching under load are required but overcurrent protection is handled upstream or by a separate device.
The 63 A continuous rating carries that current indefinitely; maximum power loss is 38 W. The shunt trip operates on 12-30 V DC or 24 V AC, so it can be driven by a standard 24 V DC control supply or a PLC digital output. The auxiliary contact block provides 2 CO (changeover) contacts for status and 1 dedicated trip alarm contact — enough to signal open/closed position and a fault trip separately, without adding an external auxiliary block.
The 3VA1163-1AA32-0HH0 uses front-terminal busbar connections on the main circuit.