SENTRON 3VA2325-5HN32-0AE0 — 250 A MCCB, line protection, active production
Interrupting capacity is the headline here: 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V. That 187 kA at 240 V covers high-fault industrial and commercial services where the available short-circuit current is extreme — think large transformer secondaries or utility-side faults. The 121 kA at 400 V class gives solid selectivity headroom for most European 400 V distribution panels without cascading upstream. Dimensions: 248 mm tall, 138 mm wide, 110 mm deep. The 138 mm width is the standard 3-pole MCCB footprint for this frame class — fits existing SENTRON 3VA panel cutouts and busbar systems. No undervoltage release, no ground-fault monitoring, no communication module on this variant. It ships with a 4-auxiliary-switch HQ block fitted. Power loss is 37.5 W maximum — factor that into your enclosure thermal rise calculation if you're packing multiple breakers in a row.
Mounting and integration — panel checklist
Mounts via the standard 3VA rear-panel screw pattern or onto SENTRON busbar adapters. The 138 mm width matches the 3-pole frame spacing; verify busbar center distances if retrofitting into an older panel. Spring-cage terminals on the load and line sides accept copper or aluminum conductors — strip length and torque values are on the nameplate. The 37.5 W heat dissipation at full load means adjacent breakers should be spaced per the manufacturer's derating guidelines in the installation manual; for a row of six at 250 A, forced ventilation may be needed above 50 °C ambient.
Coordination and fault handling
Line protection design means the trip curve is optimized for cable and busbar protection, not motor inrush. If you need motor branch-circuit protection, pair this with a contactor and overload relay upstream. The 3-pole construction handles three-phase faults; the HQ auxiliary switch block provides status feedback to a PLC or annunciator. No trip indicator on the front — fault cause is read from the auxiliary contacts or a separate electronic trip module on the basic switch variant.