The Siemens 3VA1163-5MH32-0AC0 is a 3VA1 IEC frame 160 molded case circuit breaker with class M breaking capacity — Icu=55kA at 415 V AC, 3-pole, rated In=63 A. It carries starter protection TM120M, meaning the thermal-magnetic trip unit is set for motor-starting duty: the thermal element protects against overload, while the magnetic short-circuit pickup is adjustable Ii=5...15 x In. This breaker ships without overload protection (the TM120M provides it) and includes a nut keeper kit plus two HQ auxiliary switches for status feedback.
The 63 A continuous rating (In) sizes it for motor circuits, feeders, or branch protection in that current band.
Panel integration
Mounts in a standard IEC frame 160 footprint — DIN-rail or screw-mount compatible depending on the accessory base. The nut keeper kit retains the terminal screws during wiring, saving time on repeated terminations. Two HQ auxiliary switches provide independent status signals (open/closed) for PLC or indicator-light feedback; no need for a separate aux block on the side.