The Siemens SENTRON 3VA2325-5HL32-0AC0 is a 3-pole molded case circuit breaker rated for 250 A continuous current at 40 °C through 70 °C, making it a thermally stable choice for high-ambient panel environments without derating across that range. Breaking capacity hits 121 kA at 415 V and 440 V, with 187 kA available at 240 V — that's a serious SCCR for industrial distribution where fault current runs high on the secondary side of a large transformer. This is a line-protection design (not motor-protection pattern), so it tracks overload and short-circuit for feeder or main breaker duty.
Panel fit and physical integration
Dimensions: 248 mm height, 138 mm width, 110 mm depth. The 110 mm depth is the critical dimension for enclosure depth clearance — verify gland-plate and back-panel clearance against your enclosure's usable depth. The breaker ships with 2 auxiliary switches HQ as standard, so you get status feedback without ordering a separate aux block. No trip indicator, no undervoltage release, no auxiliary release on this variant.
With 121 kA at 415 V and 75.6 kA at 500 V, this MCCB can serve as a main or branch breaker in high-fault-current installations. The 7.5 kA at 690 V figure tells you it is not intended for 690 V distribution as a primary role — the arc-extinction capability drops off above 500 V. The continuous rating holds flat at 250 A across the full operating range — no thermal derating curve needed for ambient up to 70 °C.