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range of product: Altivar 71 product or component type: variable speed drive product specific application: complex, high-power machines component name: ATV71 motor power kW: 55 kW at 500 V 3 phases,75 kW at 690 V 3 phases motor power hp: 75 hp at 575 V 3 phases motor cable length: , [Us] rated supply voltage: 500...690 V (- 15...10 %) network number of phases: 3 phases line current: 84 A for 500 V 3 phases 55 kW,88 A for 690 V 3 phases 75 kW,70.5 A for 600 V 3 phases / 75 hp EMC filter: integrated assembly style: with heat sink variant: reinforced version prospective line Isc: <= 22 kA, 3 phases nominal output current: 77 A at 2.5 kHz 575 V 3 phases / 75 hp,84 A at 2.5 kHz 690 V 3 phases 75 kW,85 A at 2.5 kHz 500 V 3 phases 55 kW maximum transient current: 127.5 A for 60 s 3 phases 55 kW,140.25 A for 2 s 3 phases / 75 hp,140.25 A for 2 s 3 phases 75 kW speed drive output frequency: 0.1...500 Hz nominal switching frequency: 2.5 kHz switching frequency: 2.5...4.9 kHz adjustable,2.5...4.9 kHz with derating factor asynchronous motor control profile: ENA (Energy adaptation) system for unbalanced loads,voltage/frequency ratio (2 or 5 points),sensorless flux vector control (SFVC) (voltage or current vector),flux vector control (FVC) with sensor (current vector) type of polarization: no impedance for Modbus