The Siemens SENTRON 3VA2225-7HN32-0HC0 is a 3-pole molded case circuit breaker rated for 250 A continuous current at 40 °C, with a maximum interrupting capacity of 330 kA at 240 V AC.
The interrupting ratings drop as voltage rises: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 4.5 kA at 690 V. At 415 V, the 242 kA SCCR gives substantial headroom for most industrial distribution panels — coordination studies typically require 50–100 kA at the main, so this breaker sits well above that threshold.
In a sealed enclosure with multiple devices, the 70 °C derated figure (213 A) is the practical limit — plan for forced ventilation or a larger enclosure if the load approaches 250 A in a hot panel. Dimensions are 181 mm height, 105 mm width, 86 mm depth, fitting standard SENTRON 3VA mounting footprints. Power loss is 48 W maximum at rated current, which contributes to enclosure heat rise.
