Siemens SENTRON 3VA2225-5HN42-0JA0 — 250 A MCCB with Shunt Trip
Its interrupting capacity reaches 187 kA at 240 V AC, 121 kA at 415 V, and 75.6 kA at 500 V — at 690 V it still clears 4.5 kA, so the part carries headroom across common low-voltage system levels. Thermal derating is published across the full 40 °C to 70 °C operating band: the breaker holds 250 A up to 50 °C, then steps down to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C.
The paperwork has to be clean: Siemens typically provides CE, UL, and IEC declarations with the shipment; RoHS and REACH compliance documentation is available on request.
Panel Fit & Integration
The depth is 86 mm. Maximum power loss is 48 W at rated current — account for that heat in your enclosure thermal calculation, especially if multiple breakers are ganged in a single panel.