The Siemens SENTRON 3VA2225-7HN32-0HA0 is a 3-pole molded case circuit breaker rated for 250 A continuous current, designed for line protection in distribution panels. It carries a shunt trip release (STL) for remote tripping, and its interrupting capacity reaches 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 4.5 kA at 690 V — the high-end figures at 240–500 V make it a strong candidate for high-fault service-entrance or feeder duty where SCCR headroom is critical.
Thermal derating and panel fit
At 40 °C, 45 °C, and 50 °C the breaker holds its full 250 A rating without derating. Above 50 °C it steps down linearly: 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. The operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C. Maximum power loss is 48 W. The 105 mm width, 181 mm height, and 86 mm depth fit standard panel-mount cutouts for this frame class — verify the existing panel's mounting footprint if retrofitting.