Rating and interrupting performance
Above that, the thermal curve steps down: 313 A at 55 °C, 306 A at 60 °C, 299 A at 65 °C, and 292 A at 70 °C. That matters for a warm panel — if the enclosure ambient runs at 55 °C, you lose 7 A of headroom from the nameplate. Interrupting capacity is given per voltage level: 121 kA at 240 VAC, 75.6 kA at both 415 V and 440 V, 52.5 kA at 500 V, and 11.9 kA at 690 V.
Construction and release
Dimensions: 248 mm high, 184 mm wide, 110 mm deep. The 184 mm width is the panel cutout dimension to check — it is wider than a typical 3-pole MCCB of similar rating because this is a 4-pole frame. Verify the mounting footprint against the existing backplate or DIN-rail adapter before ordering. Maximum power dissipation at rated load is 80.1 W — factor that into the enclosure thermal calculation if the breaker is in a sealed cabinet with other heat sources.