The Siemens 3VA2163-6HL32-0JH0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to 70 °C. Interrupting capacity hits 242 kA at 240 V AC, 187 kA at 415 V, and still delivers 121 kA at 500 V.
The 63 A frame is flat-rated across the operating temperature range — no thermal derating curve to calculate below 70 °C. That simplifies panel budgeting: the breaker delivers its full nameplate at the back of a warm enclosure.
The shunt trip (STL) allows remote tripping from an emergency-stop circuit or PLC output. The auxiliary switch block provides two form-C contacts for status feedback and one dedicated trip-alarm contact — enough for a motor control center (MCC) bucket or a distribution panel with remote monitoring.
