The Siemens SENTRON 3VA2063-8HL42-0AA0 is a 4-pole molded case circuit breaker rated for 63 A continuous current at ambient temperatures from 40 °C through 70 °C — no derating needed across that span. The ETU320 electronic trip unit provides adjustable overload and short-circuit protection, with a maximum breaking capacity of 440 kA at 240 V and 330 kA at 415 V.
This MCCB's interrupting rating varies with system voltage: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V.
