What it is — and what the ratings mean for fit
The Siemens 3VA2225-7HL32-0HA0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 250 A continuous current — that's the Iu, the thermal-magnetic or electronic trip rating the breaker will carry without tripping at its calibrated ambient. It's a 3-pole unit, designed for line protection (not motor, not feeder-only — line side of a distribution board or incoming main), with a shunt trip release (STL) built in for remote emergency-off or undervoltage tripping. Short-circuit breaking capacity is the headline: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 4.5 kA at 690 V. That 330 kA at 240 V is a high-interrupting rating — this breaker can clear a bolted fault on a 240 V system with massive available fault current, typical of transformer-secondaries or large busway feeds. At 690 V the SCCR drops sharply to 4.5 kA, so it's not a 690 V main breaker unless the fault current is very low. Thermal derating is published: full 250 A from 40 °C to 50 °C, then linearly down to 213 A at 70 °C ambient. That 250 A rating holds in a 50 °C panel — good for a hot enclosure. At 70 °C you lose about 15% capacity, which matters when the breaker is in a sealed, non-vented box near other heat sources.
Lifecycle and sourcing reality
This part is marked as current production — no phase-out or last-time-buy notice. It's an active catalog item in the 3VA2 family, so you can spec it into a new BOM without worrying about a looming EOL. Sourced to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.
Integration — what bolts in
Dimensions: 181 mm high, 105 mm wide, 86 mm deep. That is a standard 3-pole MCCB footprint.