The Siemens SENTRON 3VA2225-5HL32-0KL0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, designed for line protection in distribution panels. Its interrupting ratings hit 187 kA at 240 V and 121 kA at 415 V and 440 V, so it handles high-fault utility feeds without cascading upstream — the SCCR stays at 75.6 kA at 500 V and 4.5 kA at 690 V, which covers most industrial step-down transformer secondaries. Thermal derating is linear above 50 °C: 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. If the panel ambient runs above 50 °C, the 250 A frame still carries the load, but the continuous rating drops — size the upstream conductor for the derated value, not the nameplate.
Auxiliaries & Fit
Factory-fitted auxiliary switch package includes 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (HQ type). The auxiliary release is a shunt trip (STL). No undervoltage release, no ground-fault monitoring, no communication function — this is a standalone line-protection breaker with remote trip capability via the shunt coil. Dimensions: 105 mm wide, 181 mm high, 86 mm deep. Mounts on a standard DIN rail or direct panel-mount in a SENTRON distribution board. The supplied basic switch is order code 3VA2225-5HL32-0AA0 — verify the internal accessory configuration matches your BOM before committing the line item.