Its interrupting capacity reaches 187 kA at 240 VAC and 121 kA at 415/440 VAC, tapering to 7.5 kA at 690 VAC — the 690 V figure governs the high-voltage end of the fault-current curve and is the one to check for 600 V class systems. The breaker includes a shunt trip (STL) release and 2 auxiliary switches plus a trip alarm switch (HQ), so it fits remote-trip and status-monitoring circuits without adding external relays.
Above that, it derates linearly: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. If the panel ambient runs at 60 °C, the breaker effectively carries 370 A — plan the load side accordingly. Maximum power loss is 96 W, which matters for heat buildup in a sealed enclosure.
Dimensions: 248 mm high, 184 mm wide, 110 mm deep. The 110 mm depth is the dimension from the mounting surface to the front cover — important when the panel door clearance is tight.