The Siemens SENTRON 3VA2510-5KQ32-0CH0 is a 3-pole molded case circuit breaker (MCCB) rated for 1000 A continuous current at 40 °C, with the same rating holding flat through 55 °C — a thermal plateau that avoids derating in most ventilated enclosures. Above 55 °C it derates linearly to 815 A at 70 °C, so the ambient inside the panel governs the actual continuous current you can carry. The interrupting ratings are 187 kA at 240 V, 121 kA at 415 V, and 53 kA at 690 V, which means it can clear faults up to those levels without upstream cascading — critical for high-fault utility feeds or transformer secondaries. The ETU860 electronic trip unit provides adjustable long-time (tr 0.5–25 s) and short-time (tsd 0.05–0.5 s) delay settings, plus ground-fault monitoring via summation current formation on the L-conductor.
The breaker measures 320 mm high by 210 mm wide by 120 mm deep — a footprint that fits standard panel cutouts for 1000 A frame MCCBs. Communication function is built in, so it can integrate with a BMS or SCADA system for remote trip indication and metering.