Siemens SENTRON 3VA2163-5KP32-0JL0 — 63 A MCCB with ETU850
The Siemens SENTRON 3VA2163-5KP32-0JL0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current (Iu) at 40 °C, with a rated insulation voltage of 800 V. It carries a 187 kA breaking capacity at 240 V, 121 kA at 415/440 V, and 79 kA at 500 V — enough headroom for most industrial fault-current scenarios without cascading upstream.
Breaking capacity & selectivity planning
The 63 A frame is thermally rated to carry full load without derating up to 50 °C; at 70 °C it derates to 53.55 A.
Panel integration & wiring
Strip length of 8 mm avoids whiskers under the cage. The shunt trip (STL) is built in, so no external undervoltage release is fitted — if you need UVR protection, that's a separate accessory.
