The Siemens SENTRON 3VA2325-6HN32-0KC0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Breaking capacity is the headline number here: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 7.5 kA at 690 V.
Built-in accessories and physical fit
The basic switch core is order code 3VA2325-6HN32-0AA0; the -0KC0 suffix adds the shunt trip and aux switches. Panel builders should confirm the 138 mm width against existing busbar spacing; it's wider than a compact 160 A frame but narrower than a 400 A frame.
Maximum power loss is 37.5 W — relevant for thermal coordination inside a sealed enclosure. The 70 °C operating ceiling matches the continuous current rating, so no additional derating curve to track.