Its adjustable thermal-magnetic trip covers a range from 375 A minimum to 2 500 A maximum, letting you dial in the protection curve to match downstream cable and load. Breaking capacity is 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4.5 kA at 690 V — so it handles high-fault utility feeds at common low-voltage levels while still clearing a 690 V motor circuit.
Above that, derate to 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C.
Built-in auxiliary and undervoltage release
This variant ships with two auxiliary switches (HQ design) and an undervoltage release (UVR). Communication function is present, so it can integrate with a higher-level monitoring system via the SENTRON bus.