Its interrupting capacity reaches 330 kA at 240 VAC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V — covering fault levels from low-voltage service entrances up through medium-voltage transformer secondaries.
Above that, the thermal curve steps down: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. Allow ventilation or a larger cabinet if grouping several breakers on the same subfeed.
Shunt trip and auxiliary options
The shunt trip release (STL) allows a remote signal — from an E-stop relay, fire alarm panel, or PLC digital output — to trip the breaker independently of the overcurrent protection. No auxiliary switch is fitted, meaning no remote status feedback from the breaker mechanism itself; if position indication is needed, specify a variant with the auxiliary switch block.