What the ratings mean for fit
The 3VA2325-6HL32-0BH0 is a Siemens SENTRON molded case circuit breaker (MCCB) rated for 250 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling, which simplifies panel thermal budgeting. Its 3-pole construction and 242 kA breaking capacity at 240 V (187 kA at 415 V, 121 kA at 500 V, 7.5 kA at 690 V) mean it can interrupt fault currents up to those levels without upstream cascading, making it suitable for high-fault service-entrance or distribution positions where SCCR headroom is critical. The breaker is designed for line protection (not motor or generator protection), with an undervoltage release (UVR) and a complement of 2 auxiliary switches plus 1 trip alarm switch HQ. The trip indicator confirms the breaker has opened on fault, a useful diagnostic for remote monitoring or panel walk-downs. Physical footprint: 248 mm high, 138 mm wide, 110 mm deep. The depth is the dimension that matters most when fitting into a backpanel enclosure — verify the gland plate clearance and door swing before committing the cutout.
Integration notes
Mounts in a standard panel or enclosure — it is a DIN-rail-mountable MCCB (the SENTRON 3VA series uses a snap-on foot for 35 mm DIN rail). The 110 mm depth means it fits most 200 mm deep enclosures with room for rear wiring gutters. The undervoltage release (UVR) requires a separate control voltage; verify the coil rating matches the panel's control supply before wiring. Maximum power loss is 40 W at full rated current. That is modest for a 250 A frame, but in a densely packed panel with multiple breakers, the cumulative heat should be factored into the enclosure ventilation calculation.