Its interrupting capacity reaches 52.5 kA at 240 V and 32 kA at 415 V, dropping to 13.6 kA at 440 V and 7.5 kA at 690 V — figures that define the available fault current it can safely clear at each system voltage level. It carries a shunt trip (STL) for remote tripping and two HQ auxiliary switches for status feedback, but no undervoltage release, no phase failure detection, and no communication function.
The breaker carries a full 20 A up to 50 °C ambient; above that it derates linearly to 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C — so in a warm panel the continuous load must be backed off accordingly. Dimensions are 76.2 mm wide, 130 mm high, and 70 mm deep — a standard 3-pole MCCB footprint that fits common DIN-rail or mounting-plate layouts without surprises. Electrical endurance is rated at 15,000 operations.