The Siemens SENTRON 3VA2325-5HL32-0HA0 is a 3-pole molded case circuit breaker rated for 250 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to the enclosure's thermal limit. Breaking capacity reaches 187 kA at 240 V, 121 kA at 415 V/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 integrated shunt trip release (STL) allows remote tripping from a safety relay or E-stop circuit, which simplifies compliance with emergency-off requirements in a single enclosure.
Physical Fit & Panel Integration
Dimensions are 248 mm high, 138 mm wide, and 110 mm deep — a standard SENTRON 3VA frame size that fits existing 3VA panel cutouts and busbar arrangements. The 3-pole block occupies a single mounting position on the DIN rail or direct-panel mount. No auxiliary switch is fitted as standard (the order code specifies "without" auxiliary switch), so if you need status feedback to a PLC or indication lamp, plan for a separate auxiliary switch block that clips onto the left side of the breaker.
Key Ratings & What They Mean for Your Panel
The 250 A continuous rating is flat from 40 °C to 70 °C — no thermal derating curve to calculate for warm enclosures. The breaking capacity at 415 V (121 kA) is the figure most relevant for European 400 V industrial networks; it ensures the breaker can interrupt a bolted fault at the main distribution board without upstream breakers needing to clear it. The shunt trip release (STL) operates on a separate control voltage — verify the coil rating matches your 24 VDC or 230 VAC control circuit (the order code does not specify the coil voltage, so confirm at ordering).