The Siemens 3VA2563-5MN32-0CC0 is a 3-pole motor protection circuit breaker from the 3VA2 IEC frame 1000 series, rated at 630 A continuous current with a breaking capacity class M — that means Icu = 55 kA at 415 V AC, enough to clear a serious fault on a motor feeder without the arc flashing over. It carries the ETU350M electronic trip unit configured for LSI protection: long-time (overload) adjustable from 250 A to 630 A, short-time (short-circuit) adjustable 3 to 15 times Ir, and instantaneous fixed at 15 times In. That LSI curve lets you coordinate selectively with downstream breakers and still catch a locked-rotor event fast. The UVR drops the trip mechanism if control voltage falls below its dropout threshold — standard for applications where you need the load to coast to a stop on power loss rather than re-accelerate uncommanded.
Where you'd mount this in a panel
This is a fixed-mount IEC breaker sized for a motor control center or distribution board — not a snap-on DIN rail unit. It bolts into the 3VA2 frame 1000 cradle, which takes up a full panel footprint. The nut keeper kit keeps the busbar connections from loosening under thermal cycling on a heavily loaded motor feeder. Plan for the UVR wiring back to a 120–127 V AC control transformer; the two auxiliary switches give you a feedback contact for the PLC and a separate alarm contact for the HMI.