Breaking capacity is 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500 V and 690 V — that covers most industrial service-entrance and feeder applications where high fault current is expected. Rated current holds at 20 A up to 55 °C ambient; above that it derates to 19 A at 60–70 °C.
Auxiliaries and integration
This MCCB ships with two auxiliary switches plus a separate trip-alarm switch (HQ type), and the undervoltage release is factory-fitted. That means you get remote status and shunt-trip capability without ordering add-on modules — one less SKU to track. Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — standard 3-pole MCCB footprint for DIN-rail or panel-mount enclosures. Power loss is 14.5 W maximum.