The 3VA1163-5MH32-0CC0 is a 3-pole IEC frame 160 circuit breaker with a 55 kA interrupting capacity at 415 V AC — that's breaking capacity class M, meaning it can safely clear faults up to 55 kA without upstream cascading, which matters when you're coordinating selectivity in a main or sub-distribution panel. The TM120M thermal-magnetic trip unit is set at 63 A (In) and provides starter protection for motor circuits: the thermal element tracks motor heating, the magnetic pickup is adjustable 5–15 x In for short-circuit protection, and there is no separate overload relay needed — the breaker itself does that job. Two auxiliary switches (HQ type) provide status feedback to the PLC or indication lamp.
For BOM-line commitment, the key fit criteria are the 63 A TM120M trip, the 55 kA @ 415 V interrupting rating, and the UVR voltage (120-127 V AC).
Deployment context
The UVR coil draws continuously when energized; verify the control transformer is sized for the holding current.