The Siemens SENTRON 3VA2340-6HL32-0AE0 is a 3-pole molded case circuit breaker rated for 400 A continuous current at 40 °C, with a maximum interrupting capacity of 242 kA at 240 V AC. The breaker carries its full 400 A rating up to 50 °C; above that it derates to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. This is the line protection variant, meaning the ETU320 electronic trip unit is configured for overload and short-circuit protection of feeders and distribution circuits — not motor protection with overload class or phase-loss detection. The ETU320 lacks voltage triggering, phase failure detection, and communication functions. It ships with four HQ auxiliary switches and provisions for an integrated auxiliary trip and a basic switch if field retrofits are needed.
The SENTRON series carries IEC 60947-2 certification for molded case circuit breakers; compliance documentation (CE, RoHS, REACH) is standard with Siemens shipments. No UL/CSA listing is stated in the evidence — verify with your Siemens representative if UL 489 listing is required for your jurisdiction.