The Siemens 3VA2563-5MN32-0DC0 is a 3-pole IEC frame 1000 circuit breaker in the 3VA2 series, rated for motor protection with an ETU350M LSI trip unit. Breaking capacity hits 55 kA Icu at 415 V — class M, which means it handles high-fault industrial distribution without cascading upstream. In=630 A, with overload protection adjustable Ir from 250 A to 630 A, and short-circuit protection Isd from 3 to 15 x Ir, plus instantaneous Ii fixed at 15 x In.
The ETU350M LSI gives you separate adjustments for long-time (Ir), short-time (Isd), and instantaneous (Ii) protection, so you can coordinate with downstream motor starters and upstream feeders. The undervoltage release (UVR) at 208-230 V AC drops the breaker on loss of control voltage — standard for emergency-stop circuits or power-fail protection on a motor control center.
The UVR coil draws from a 208-230 V AC control transformer; verify the control circuit breaker is sized for the inrush.