What this MCCB carries — and what that means for your panel
The Siemens 3VA2325-6HL32-0CA0 is a 3-pole SENTRON molded case circuit breaker rated for 250 A continuous current at ambient temperatures from 40 °C to 70 °C with no derating needed — the full 250 A holds across that entire thermal band, so you don't have to oversize for a hot enclosure. Breaking capacity is 242 kA at 240 V AC, dropping to 187 kA at 415 V and 440 V, then 121 kA at 500 V, and 7.5 kA at 690 V — the high interrupt rating at the lower voltages means it handles utility-level fault currents on 240 V services without cascading upstream. Rated current range spans 375 A minimum to 3 000 A maximum, making this a high-current frame suitable for main feeders or large motor branch circuits in industrial distribution.
Fit and integration notes
Dimensions are 248 mm high, 138 mm wide, and 110 mm deep — a standard MCCB footprint for DIN-rail or panel-mount installation in switchgear enclosures. Equipped with an undervoltage release (UVR) for automatic tripping when control voltage drops below threshold; the auxiliary switch design is specified as 'without', so no auxiliary contact block is included on this variant. Designed for line protection (cable and busbar feeder protection), not motor or generator protection — the trip curve and accessories are optimized for overcurrent and short-circuit on distribution circuits. Maximum power loss is 40 W — relevant for enclosure thermal calculations when multiple breakers are ganged.