What this MCCB delivers for your panel
The Siemens SENTRON 3VA2325-6HN32-0BA0 is a 3-pole molded case circuit breaker rated for 250 A continuous current at 40 °C. Its ETU350 electronic trip unit provides adjustable overload and short-circuit protection for line duty. Breaking capacity hits 242 kA at 240 V and 187 kA at 415 V, so it handles high-fault utility feeds without cascading upstream.
Mounting and integration
At 248 mm high × 138 mm wide × 110 mm deep, it fits standard MCCB panel cutouts. The 3-pole form factor leaves room for side-mounted accessories. Undervoltage release (UVR) is built in — verify coil voltage matches your control circuit before wiring.
Thermal derating and endurance
Rated current holds at 250 A from 40 °C up to 50 °C, then steps down to 240 A at 55 °C, 235 A at 60 °C, 230 A at 65 °C, and 225 A at 70 °C (–). Mechanical endurance is 15,000 operations. Maximum power loss is 40 W — factor that into enclosure ventilation.