The Siemens SENTRON 3VA2163-7HL36-0AA0 is a 3-pole molded case circuit breaker rated 63 A continuous at 40 °C through 70 °C — no derating needed across that range, which simplifies panel calculations in warm enclosures. The ETU320 electronic trip unit gives adjustable short-time delay (tr min 0.5 s, tr max 17 s) for selective coordination downstream — critical on a main or feeder breaker where you want the branch to clear first.
Front IP40 protects against tool entry; the enclosure interior is not sealed. Optional motor drive available for remote operation.
Electrical ratings and selectivity headroom
The 690 V interrupting rating drops to 3.8 kA — that voltage level is outside this breaker's sweet spot; for 690 V applications a higher-rated frame is the better choice.