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active infeed converter - 675 kW - 380...480 V Schneider

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Quick Overview

Energy regeneration and sinusoidal line current 120 - 860 kW Altivar AFE (Active Front End) - Option for energy regeneration to the line supply

Line disturbance/conditions
• THD(i) of less than 4%
• Power factor of cos Phi 1 independent of the load and the energy direction
• Line voltage drops of up to 40% without disturbing operation
• Wide frequency range
• Line short-circuit power up to 100kA

Simple planning and installation
•  Line contactor already integrated
• No external control voltage supply necessary
• Integrated charging circuit providing a maximum fourfold power at the DC bus
• Operation independent of the phase sequence

Energy-saving operation
• Energy regeneration to the line supply
• Improved efficiency thanks to an innovative control system
• No need for damping resistors (which cause heavy losses), thus making it is especially robust in heavily distorted supply voltages
• Reduction of transformer losses, wiring and switching devices

The Active Front End is connected upstream of the standard frequency inverter and consists of three components :
• Active infeed converter - AIC
• Line filter module - LFM (EMC filter, line contactor and charging circuit)
• Line filter choke - LFC (3 parts)

Technical data
• Power range of 120 – 860 kW
• 3-phase 380 - 480V ±10%; 50/60Hz ±5 %
• 3-phase 500 - 525V ±10%; 50Hz ±5 %
• 3-phase 575 - 690V ±10%; 50/60Hz ±5 %
• Built-in unit with protection degree IP00
• Operating temperature from -10°C...+45°C (up to +60°C with derating)



The Active Front End (AFE) is an option for frequency inverters to return energy to the line supply. It provides 4-quadrant operation and reduces the total current distortion factor THD(i) to a value of less than 4%

The Active Front End is an option for frequency inverters to return energy to the line supply. It provides 4-quadrant operation and thus is ideal for all applications with a generator operating mode. State-of-the-art components, a new control concept, as well as a top-quality filter module all serve to reduce the total current distortion factor THD(i) to a value of less than 4%.


  • Crane applications (hoists, long travel motion)
  • Downhill conveyors, winches, escalators
  • Complex drive systems
  • Test benches and high dynamic drives
  • Pump/turbine combinations
  • Low harmonic drives
Note: The prices are subject to change without prior notice. We will send you an email after confirmation from our sellers notifying the pricing along with the current stock and delivery leadtime.

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