It carries 100 A continuously at 40 °C ambient, derating to 91 A at 70 °C, so for a panel that runs warm you lose about 9 A off the top. Breaking capacity is the headline here: 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. That means on a 480 V panel (common in North America) the breaker can interrupt a 52.5 kA fault — enough for most industrial services with a transformer upstream. The shunt trip lets a remote signal (e.g., E-stop, fire alarm, PLC output) trip the breaker electrically — useful for emergency-off circuits or remote load shedding. The two auxiliary switches give status feedback (open/closed) to a PLC or indicator lamp.
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard MCCB footprint for 100 A class. No derating needed for altitude or humidity is listed, but the standard IEC 60947-2 rules apply for installations above 2000 m.