[Icu] rated ultimate short-circuit breaking capacity50 kA on... 220/415 V AC 50/60 Hz50 kA on ... 440 V AC 50/60 Hz42 kA at... 525 V AC 50/60 Hz42 kA on ... 690 V AC 50/60 HzUsing breaking capacity [Ics]42 kA at ... 220/415 V AC 50/60 Hz42 kA on ... 440 V AC 50/60 Hz50 kA on ... 525 V AC 50/60 Hz50 ..