The Siemens SENTRON 3VA2325-6HN32-0DH0 is a 3-pole molded case circuit breaker rated for 250 A continuous current across the full 40 °C to 70 °C ambient range, with a maximum breaking capacity of 242 kA at 240 V AC. It's designed for line protection in main distribution panels, and the 110 mm depth and 138 mm width mean it fits standard SENTRON mounting footprints without panel modification.
Breaking capacity and what it means on site
The 242 kA at 240 V AC is the short-circuit current rating — it can safely interrupt a fault up to that level without welding contacts or venting gas. At 415 V it's still 187 kA, and at 690 V it drops to 7.5 kA. That's typical for a high-interrupting MCCB in the SENTRON line; the 250 A frame handles the full range from 240 V through 690 V, just with derated interruption at higher voltages.
Auxiliaries and releases — what's built in
This variant ships with 2 auxiliary switches plus a trip alarm switch (HQ type), and it includes an undervoltage release (UVR). That means on a voltage dip or dropout the breaker trips automatically — useful for safety circuits or motor protection where you want the load to drop on power loss. The auxiliary contacts give remote status indication back to a PLC or panel lamp.