What this MCCB covers
Rated breaking capacity reaches 121 kA at 240 V, 75.6 kA at 415/440 V, 52.5 kA at 500 V, and 11.9 kA at 690 V. At the common 400 V class, 75.6 kA gives solid headroom for high-fault industrial panels — you can coordinate downstream breakers without cascading upstream. The 690 V rating (11.9 kA) is lower, so verify SCCR if the line side runs at that voltage.
Rated 320 A at 40 °C through 50 °C, then derates linearly to 292 A at 70 °C. The breaker dissipates up to 80.1 W maximum, so account for that heat in the panel thermal budget. Front IP40 is standard for indoor switchgear; no gasket for washdown.
Marked as current production (active lifecycle). No phase-out or last-time-buy notice on record.