It's built for line protection — meaning it guards the feeder or downstream distribution, not a motor or a branch with special coordination needs. The breaking capacity is what sets this part apart: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and still 17 kA at 690 V. If your BOM calls for undervoltage protection or ground-fault sensing, this isn't the variant.
Thermal derating — where the 25 A holds and where it doesn't
At 55 °C it derates to 24 A, at 60 °C to 23.5 A, at 65 °C to 23 A, and at 70 °C to 22.5 A. If your panel sits in a hot enclosure — say a non-ventilated steel box in a mill or a sunny outdoor cabinet — that derating curve is the one that governs the actual load you can hang on this breaker. The TM240 release is factory-set; no field adjustment of the thermal element.
The 3VA1125-6EF32-0HC0 measures 70 mm deep, 76.2 mm wide, and 130 mm tall. No trip indicator on the front face; you'll know it's tripped by the handle position or the auxiliary switch feedback.