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Delta AFE2000 Active Front End Unit

Delta AFE2000 Active Front End Unit

Delta AFE2000 Active Front End Unit

We provide all Delta AC Drives, VFD’s,  Delta AC Servo Motors, Delta Rotary Optical Encoders, Delta Motion Control Network, Delta Programmable Logic Controller, Delta Human Machine Interfaces, Delta Text Panels, Delta Temperature Controllers, Delta Industrial Fieldbus Solutions, Delta Pressure Sensor, Delta Brushless DC Motors as well as Delta Brushless DC Drives.

Delta AFE2000 Active Front End Unit


Incorporating years of experience in AC motor drive development, Delta introduces the innovative AFE2000. This unit is designed for a wide range of applications and it achieves outstanding energy saving results. The AFE2000 does not dissipate excess heat into the air but converts it into reusable power that can be supplied back to the mains. The AFE2000 is yet another Delta product that contributes to improving efficiency and productivity and that fulfills our mission “to provide innovative, clean and efficient energy solutions for a better tomorrow”.

Part Numbers

Item # Power
Range kW
Series Input Volts Phase Version Type
Delta AFE075A23A 7.5 kW A 230 V 3 PH A
Delta AFE075A43A 7.5 kW A 230 V 3 PH A
Delta AFE150A23A 15 kW A 230 V 3 PH A
Delta AFE150A43A 15 kW A 230 V 3 PH A
Delta AFE220A23A 22 kW A 230 V 3 PH A
Delta AFE220A43A 22 kW A 230 V 3 PH A
Delta AFE370A23A 37 kW ? A 230 V 3 PH A
Delta AFE370A43A 37 kW ? A 230 V 3 PH A
Delta AFE450A43A 45 kW A 230 V 3 PH A
Delta AFE750A43A 75 kW A 230 V 3 PH A
Active Front End Standard Reactors
Delta AF-RC075A2 7.5 kW A 230 V
Delta AF-RC150A2 15 kW A 230 V
Delta AF-RC220A2 22 kW A 230 V
Delta AF-RC370A2 37 kW ? A 230 V
Delta AF-RC150A4 15 kW A 460 V
Delta AF-RC220A4 22 kW A 460 V
Delta AF-RC370A4 22 kW A 460 V
Delta AF-RC450A4 45 kW A 460 V
Delta AF-RC750A4 75 kW A 460 V
Delta AF-RC075A4 7.5 kW A 460 V


  • Energy saving with AC/DC dual power flow control and corrects power factor up to 99%.
  • Replaces traditional braking resistor for cost savings, space savings, and energy savings.
  • PWM control substantially reduces peak of harmonic current wave and forms perfect sine wave current.
  • IEEE STD.519–1992 standard for harmonic current distortation of less than 5%.
  • Constant DC bus voltage that is not influenced by mains voltage fluctuation.
  • Supports multiple DC bus intallation:


  • Large-inertia load applications: roving machines, horizontal spiral centrifuges, drilling machines.
  • 4-quadrant load applications: cranes, cargo elevators, passenger elevators, oil production machines.
  • Quick brake applications: machine tools, high-speed spindles, bag making machines.
  • Long-term feedback energy applications: wind power systems and water power systems.
  • Parallel DC power supply applications: logistics and storage systems, wind power systems, LED lighting systems.
  • Provides excellent power quality for the communication transmission systems of Power Line products.
  • Overhead Traveling Crane


Outstanding Energy Saving Results

Controls harmonic distortion to less than 5% and corrects the power factor up to 99%.


As a replacement for traditional brake resistors: A high-watts brake resistor is usually applied to a traditional AC motor drive to absorb the excess regenerative energy generated by motor spinning and frequent braking, and then dissipating the excess energy as heat (see Figure 1).. Using brake resistors as an excess energy solution not only creates additional hardware but also occupies more space. The Delta AFE2000 series provides a new solution: instead of dissipating regenerative energy as heat, it converts regenerative energy into reusable electricity and sends it back to the mains, which reduces total energy consumption. The AFE2000 series is a cost saving and environmentally-friendly product (see Figure 2).




Delta AFE2000-User-Manual

Delta AFE2000-Catalog