The Siemens 3VA2563-5MN32-0AC0 is a 3-pole IEC molded-case circuit breaker from the 3VA2 series, frame size 1000, with a 630 A fixed thermal-magnetic trip unit (ETU350M, LSI).
The overload protection range Ir=250 A...630 A means the trip unit is adjustable — you set the continuous current rating to match the motor full-load amps, not the fixed 630 A frame. The short-circuit protection Isd is adjustable from 3 to 15 times Ir, and the instantaneous pickup Ii is fixed at 15 times In (630 A). That LSI curve (long-time, short-time, instantaneous) is typical for motor protection: it coordinates with upstream feeders and downstream contactors.
Deployment Context
The 3VA2 series uses the same footprint as the older 3VL series, so a retrofit into an existing panel is straightforward — check the busbar connection centers (frame 1000) against your existing bus system before ordering.