The Siemens SENTRON 3VA2063-5HL36-0AG0 is a 3-pole molded case circuit breaker rated for 63 A continuous current across the full ambient range from -25 °C to 70 °C — no derating needed up to that ceiling. Breaking capacity hits 187 kA at 240 V AC and 121 kA at 415/440 V, dropping to 75.6 kA at 500 V and 3 kA at 690 V.
That is enough to coordinate with most downstream 25 kA or 36 kA MCCBs in a tiered panel, provided the let-through energy of the upstream device is published.
The auxiliary switch configuration is 1 auxiliary + 1 trip alarm switch (HP type), which gives remote status and trip indication without an external module. Power loss is 5.4 W maximum, manageable for thermal budgeting in a sealed enclosure.
Design and compliance
The basic switch variant is 3VA20635HL360AA0.