Its interrupting capacity is 187 kA at 240 V AC, dropping to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V — meaning it can safely clear high fault currents on the low-voltage side of a transformer or in a main feeder, but the 690 V rating is low enough that you'd check coordination upstream for that voltage class.
The breaker includes a communication function and other measurement functions, plus summation-current ground-fault monitoring on the L-conductor — useful for feeding status into a BMS or PLC without an add-on module. Maximum power loss is 13.5 W, which is modest for a 100 A frame — keeps internal cabinet temperature rise manageable.
