The Siemens 3VA2325-6HN32-0BC0 is a SENTRON molded case circuit breaker rated for 250 A continuous at 40 °C through 70 °C — no derating needed across that span, which simplifies panel thermal budgeting. Its 3-pole line-protection design carries a 242 kA interrupting capacity at 240 V, dropping to 187 kA at 415/440 V, 121 kA at 500 V, and 7.5 kA at 690 V, so it handles high-fault utility feeds and transformer secondaries without cascading upstream.
The breaker measures 248 mm high, 138 mm wide, and 110 mm deep — a standard SENTRON 3VA footprint that fits existing panel cutouts and DIN-rail adapters. Maximum power loss is 40 W, so ventilation in a sealed enclosure should account for that dissipation. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.