Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — numbers that tell you this breaker is built for high-fault panels where the available short-circuit current is substantial.
The 63 A continuous current holds flat from 40 °C to 50 °C; above that it derates stepwise — 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, 56.7 A at 70 °C. The IP40 front protection means it's fine in a clean indoor enclosure; no washdown rating here.
Auxiliary and undervoltage release
This version carries an undervoltage release (UVR) — if the control voltage drops, the breaker trips. That's useful for emergency-stop circuits or undervoltage protection on a machine. The trip indicator on the front gives a local visual flag.
The latching endurance is rated at 15 000 operations, which is typical for a distribution breaker — not a switching device, but it handles occasional manual operations without issue.