Its breaking capacity hits 242 kA at 240 V and 187 kA at 415 V and 440 V — figures that put it in the high-interrupting class for industrial distribution panels where fault currents are serious. For a 25 A frame, that's enormous headroom — it's sized for the fault level at the service entrance or a large sub-distribution board, not for a downstream branch. The 3.7 kA rating at 690 V tells you the arc extinction gets harder at higher voltage, but that's still adequate for most 690 V industrial loads. The unit includes communication functionality and ground-fault monitoring via summation current formation on L + N conductors — meaning it can talk to a building management system or PLC and report trip events and leakage without a separate GFCI module.
Panel fit and thermal derating
No undervoltage release or voltage trip trigger on this variant, so it's a straight thermal-magnetic or electronic trip unit — no auxiliary coil to wire. That means no derating curve to calculate for warm enclosures — the breaker is already calibrated for a hot panel.