What this MCCB does for your panel
The 121 kA interrupting capacity at 240 V gives you headroom on high-fault panels; at 415 V it still holds 75.6 kA, and at 690 V it's rated 11.9 kA — so the same breaker works across 240 V, 400 V, and 690 V distribution without swapping frames.
Current derating and temperature
Above that, it steps down: 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.
Auxiliary contacts and trip alarm
That means you get both a status mirror for the breaker position and a separate signal for fault tripping — useful for feeding a PLC input or annunciator without extra relays. The trip indicator is built in, and the voltage trigger (shunt trip) is present; undervoltage release and phase failure detection are not fitted on this variant.