What the ratings mean for the panel
The 3VA2225-6JQ32-0CL0 is a Siemens SENTRON molded case circuit breaker rated for line protection duty. Its headline current rating is 250 A at 40 °C, holding flat through 50 °C before it begins to derate — at 55 °C it carries 238 A, at 60 °C it carries 225 A, and at 70 °C it carries 200 A. That derating curve is what matters for a panel sitting near a motor drive or transformer: you size the breaker for the actual ambient inside the enclosure, not the nameplate 250 A. Interrupting capacity is where this frame earns its place. At 240 V it clears 242 kA; at 415 V and 440 V it clears 187 kA; at 500 V it clears 121 kA. That drops to 4.5 kA at 690 V, so verify your system voltage against the fault-current table before committing the BOM line. The 3-pole construction and undervoltage release (UVR) trip the breaker on loss of control voltage — standard for safety circuits that must fail to a de-energized state.
Panel fit and integration
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep. That 86 mm depth is the dimension that governs gland-plate clearance in a standard 200 mm deep enclosure — you have roughly 114 mm behind the mounting plate for wiring and bus bars. The auxiliary switch configuration is 2 auxiliary switches plus 1 trip alarm switch plus 1 electrical alarm switch HQ, which covers status feedback and remote trip indication without adding external relays.