2) For AC-3 rated operational current with LZM4 the following applies: 400 V: max. 650 kW; 690 V: max. 600 kW
4) For 3-pole system protection circuit-breaker the AC-3 specification is not applicable
6) For current heat loss per pole the specification refers to the maximum nominal current of the frame size.
7) For 3-pole system protection circuit-breaker the following applies: 400/415 V 7500 switching operations
8) Maximum back-up fuse, if the expected short-circuit currents at the installation location exceed the switching capacity of the circuit-breaker.
9) ̰ 1600 A