The adjustable thermal-magnetic trip unit covers a 300 A to 1 500 A range, so you set the instantaneous pickup to coordinate with downstream devices. Breaking capacity is the headline here: 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 3.7 kA at 690 V. The steep drop to 3.7 kA at 690 V tells you this breaker is optimized for low-voltage (≤600 V) systems, not 690 V motor circuits.
Power loss is 10 W maximum — negligible for panel heat budgeting, but worth noting if you're packing multiple breakers in a sealed enclosure. No phase-failure detection or ground-fault monitoring on this variant — those are separate accessory modules.