The Siemens SENTRON 3VA2163-6HL36-0HL0 is a 3-pole molded case circuit breaker rated for 63 A continuous current across the full ambient range up to 70 °C — no derating needed in a warm enclosure. Breaking capacity hits 242 kA at 240 V and 187 kA at 415 V, so it handles high-fault utility feeds without cascading upstream — a real advantage on transformer-secondaries or industrial mains.
Auxiliaries and releases — what's on board
Dimensions are 181 mm high, 105 mm wide, 86 mm deep — it occupies a standard MCCB footprint on a DIN rail or panel-mount base, so it drops into most SENTRON or third-party enclosures without re-drilling. Operating range covers -25 °C to 70 °C ambient; storage from -40 °C to 80 °C. The 63 A rating holds steady across that entire operating band — no summer-derate headache. Maximum power loss is 4 W, which is negligible for enclosure thermal calculations — you won't need to upsize the cabinet for this one breaker.
There is no official successor order code; the 3VA2 series is the current generation and this suffix is the active line-protection variant with shunt trip and HQ auxiliary switch pack.