The Siemens 3VA1163-6MH36-0HC0 is a 3-pole IEC frame 160 molded-case circuit breaker with a 70 kA breaking capacity at 415 V (class H). It's configured for starter protection with a TM120M thermal-magnetic trip unit, rated 63 A, but note: this variant provides short-circuit protection only — no overload protection. Two HQ auxiliary switches give status feedback to the control system.
This breaker uses clamp (lug) connections, so it lands on busbars or cable lugs in a distribution panel or motor starter bucket. The 3VA1 frame is DIN-rail mountable, but at 63 A and with shunt trip wiring, plan for finger-safe gland plates and enough bend radius on the control wires to the STL terminals.
Lifecycle stage is current — Siemens still lists this as an active catalog number, so it's not on LTB or EOL notice. That means it's specifiable into new BOMs without a PCN watch.