The Siemens SENTRON 3VA2063-6HN42-0AA0 is a 4-pole molded case circuit breaker rated for 63 A continuous current at 40 °C through 70 °C, meaning no derating is needed across the full panel ambient range. The ETU350 electronic trip unit provides line protection with adjustable overload and short-circuit settings. Interrupting capacity reaches 242 kA at 240 V, 187 kA at 415/440 V, and 121 kA at 500 V — enough to clear high-fault conditions without cascading upstream breakers.
The 4-pole form factor fits standard panel layouts; front IP40 protection keeps debris out of the breaker face in enclosed panels. Power loss is 5.4 W maximum at rated current.
No trip indicator is fitted, so fault events won't be visually flagged on the breaker itself — plan for remote indication via auxiliary contacts if needed. The 63 A rating holds steady across the full 40–70 °C range, which simplifies coordination in dense panels where ambient can climb.