The Siemens SENTRON 3VA2325-5HN32-0AB0 is a 3-pole 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. Breaking capacity hits 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V, so it handles high-fault utility feeds and transformer secondaries without cascading upstream. The 110 mm depth, 138 mm width, and 248 mm height fit standard SENTRON panel cutouts.
Breaking capacity and selectivity
The 187 kA at 240 V puts this MCCB in the high-interrupting class for North American 240/120 V split-phase service entrances. At 415 V (common IEC industrial voltage) the 121 kA rating still clears most distribution transformer secondary faults. The 7.5 kA at 690 V is the tail — adequate for 690 V drives or motor control centers, but not for high-fault 690 V utility ties. For a panel originally specified around the 3VA2225-5HN42-0BB0, the 3VA2325-5HN32-0AB0 shares the same SENTRON 3VA frame footprint and mounting pattern, so it drops in without rewiring — verify the lug kit matches your cable size.
Environmental and installation
Operating temperature range is -25 °C to 70 °C; storage from -40 °C to 80 °C. Maximum power loss is 37.5 W — account for that in enclosure thermal calculations if the panel is tightly packed. The 3-pole design with no trip indicator and no voltage trigger means it's a straight thermal-magnetic or electronic-trip MCCB (trip unit type not specified in this listing). Mounts in the standard SENTRON 3VA panel footprint; the 138 mm width matches the 3VA frame width for multi-pole grouping.