The Siemens SENTRON 3VA1163-1AA36-0HA0 is a 3-pole switch disconnector in the 3VA1 IEC frame-160 platform, rated for 63 A continuous current (Iu) with a maximum AC operating voltage of 690 V at 50/60 Hz and 500 V DC. It is built as a pure disconnect — no overload or short-circuit protection — so it functions as a manual load-break switch for isolating a circuit under load, not as a circuit breaker. The integral shunt trip (STL) release, designed for 12-30 V DC or 24 V AC control, allows remote tripping via a separate signal, which is useful for emergency-stop or supervisory shutdown schemes.
The unit measures 70 mm deep by 76.2 mm wide by 130 mm high, which is the standard 3VA1 frame-160 footprint shared across the SENTRON molded-case platform. Front-terminal clamp connections accept copper conductors for the main circuit, so panel wiring is straightforward — no lug crimping required. The 3-pole block occupies three adjacent DIN-rail mounting positions in a typical distribution board.
The shunt trip release draws its control power from a separate 12-30 V DC or 24 V AC source — it does not share the main circuit's supply, so the switch can be opened even when the load side is de-energized. There are no auxiliary contacts built in (0 CO contacts), so if status feedback is needed, an external auxiliary switch block must be added via the optional motor-drive accessory slot.