What you're looking at
It's a line-protection breaker — no undervoltage release, no ground-fault module, no communication stack. Just the core interrupting job. The interrupting ratings climb as voltage drops: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V. That's enough SCCR headroom for most industrial panel feeds — the 415 V figure covers common European and Asian distribution voltages cleanly.
Thermal derating — the real usable current
Above that it starts to step down: 76.8 A at 55 °C, 75.2 A at 60 °C, 73.6 A at 65 °C, and 72 A at 70 °C.
Panel fit and aux contacts
That's a standard MCCB footprint — drops into most DIN-rail or panel-mount bases without re-drilling. That's enough for a remote status signal and a separate alarm contact — useful for feeding a PLC input and a local beacon without sharing terminals.