Breaking capacity ranges from 187 kA at 240 V down to 17 kA at 690 V, so it can sit on the main feeder of a panel with high available fault current and still coordinate downstream.
Thermal derating and ambient limits
Operating range is -25 °C to +70 °C; storage range is -40 °C to +80 °C. If the panel runs hot — near a transformer or in a non-conditioned enclosure — the 55 °C to 70 °C derating curve is the one that governs real-world ampacity, not the nameplate 250 A.
Physical fit and auxiliary contacts
Dimensions are 105 mm wide, 158 mm high, 70 mm deep — a standard MCCB footprint for 250 A frame size.