Siemens SENTRON 3VA2510-5HN32-0JH0 — 1000 A MCCB with ETU350 Release
Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, and 53 kA at 690 V — numbers that tell you this breaker is sized for high-fault main feeders or large distribution panels where SCCR headroom is the deciding spec, not the load current alone. The ETU350 electronic trip unit gives you adjustable long-time pickup (Ir) from 0.5 to 1.0 × Iu, short-time delay (tsd) from 0.04 to 0.4 s, and instantaneous pickup (Ii) up to 10 000 A. That adjustability means you can shape the trip curve to coordinate with downstream breakers — essential for selectivity in a multi-level distribution panel.
At 60 °C it derates to 955 A, at 65 °C to 885 A, and at 70 °C to 815 A. Physical footprint: 320 mm high, 210 mm wide, 120 mm deep. That's a 3-pole frame that fits standard MCCB mounting patterns in switchboards and panelboards.