The breaking capacity tells you the maximum fault current the breaker can safely interrupt at a given voltage: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 52.5 kA at 690 V. The rated insulation voltage Ui is 800 V, confirming the breaker's internal insulation system is rated for 800 V phase-to-phase, so it's suitable for 480/277 V and 600/347 V North American systems as well as 400 V and 690 V IEC systems.
Thermal derating and the real-world current limit
At 55 °C it drops to 96 A, at 60 °C to 94 A, at 65 °C to 92 A, and at 70 °C to 90 A. If the breaker is mounted in a hot enclosure (near a drive, transformer, or in a non-ventilated cabinet), use the 90 A figure at 70 °C as your continuous load limit. The maximum power loss is 75 W at rated current; that's the heat the breaker dumps into the enclosure, so factor it into the panel thermal calculation.
Release, aux contacts, and integration notes
The overcurrent release is the ETU310M, an electronic trip unit with LSI curves (long-time, short-time, instantaneous) — adjustable, so you can coordinate selectively with downstream breakers. The auxiliary contact configuration is 1 auxiliary switch + 1 trip alarm switch HP, which gives you one N.O./N.C. set for status feedback (breaker open/closed) and one dedicated to signaling a trip event.