Motor protection breaker, 630 A frame, ETU350M LSI
The Siemens 3VA2563-5MN32-0DA0 is a 3-pole IEC frame 1000 motor protection circuit breaker rated 630 A continuous, with a 55 kA interrupting capacity at 415 V (breaking capacity class M). It carries the ETU350M electronic trip unit configured for LSI protection — long-time (Ir adjustable 250–630 A), short-time (Isd 3–15 × Ir), and instantaneous (Ii fixed at 15 × In).
The 55 kA Icu at 415 V places this breaker in breaking capacity class M, sized for industrial distribution where fault currents can reach that level — typical for transformer-fed motor control centres. The ETU350M LSI trip unit gives you adjustable overload (Ir) and short-time (Isd) pickups, so you can coordinate selectively with downstream feeders. The fixed Ii at 15 × In (9,450 A) clears hard bolted faults instantly without delay.
Integration notes
The UVR coil draws continuously when energized; verify the control transformer sizing if the breaker is part of a group with multiple UVRs.