The Siemens SENTRON 3VA2340-5HL32-0DL0 is a 3-pole molded case circuit breaker rated for 400 A continuous current at 40 °C, holding that rating flat through 50 °C before derating begins — 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, 340 A at 70 °C. Interrupting capacity is the headline: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, 7.5 kA at 690 V.
That 138 mm width on a 3-pole 400 A frame is standard for SENTRON 3VA2 breakers — it occupies three 45 mm pole spaces on the DIN rail or mounting plate. The 110 mm depth leaves clearance for rear-mounted busbars or cable lugs in a typical 600 mm deep enclosure. The basic switch assembly is order code 3VA2340-5HL32-0AA0, meaning the breaker body and trip unit are a matched set — not field-interchangeable with other 3VA2 frames. The trip indicator gives a visual flag after a fault event, which speeds troubleshooting on a multi-breaker lineup.
Power loss is 98.5 W maximum at rated current — factor that into panel cooling calculations if the breaker is enclosed with other heat sources.