The Siemens SENTRON 3VA2325-5MN32-0HC0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, with a breaking capacity of 187 kA at 240 V AC.
Rated continuous current holds at 250 A from 40 °C up to 50 °C, then derates to 240 A at 55 °C, 235 A at 60 °C, 230 A at 65 °C, and 225 A at 70 °C. Breaking capacity drops with voltage: 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V.
Protection and auxiliary features
The shunt trip (STL) allows remote tripping from an emergency stop or PLC output. Two auxiliary switches (HQ version) give status feedback to the control system.
Physical fit and integration
The 110 mm depth matters for shallow enclosures; check your gland plate clearance if the breaker is mounted near the back wall. Maximum power loss is 37.5 W — factor that into your enclosure thermal budget if you're stacking several breakers side by side.