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ER-400W Series Solid-State GPU 400Hz Frequency Converter

1. Automatically voltage compensation system,ideal voltage at aircraft connector;
2. Self diagnose system which would show error code/faulty explanation on the VFD screen;
3. Memory stores 10 events;
4. Galvanically isolated, low harmonic distortion;
5. Thoroughly proven advanced SPWM and IGBT technology;
6. Pure sine wave output;
7. Eco-friendly, high efficiency, low noise;
8. 28VDC military interlock.

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ER-400W Series Solid-State GPU 400Hz Frequency Converter

ER-400W Series Solid-State GPU

400Hz Frequency Converter



ER400W as a power source to develop aircraft quality 400hz Power. It is mostly used in aircraft production manufacturing, aviation R&D, military/civil hangar, maintenance plant, aerospace equipment, military airport tarmac and wells, aviation factories.

ER400W series is one of the most popular static frequency converter. ER400W is designed to change the power at 50Hz or 60Hz to aircraft quality power at 400Hz.

It integrates IGBT made by Mitsubishi, Siemens and Infineon with PWM switching technology, and combines micro controller and digital signal processor(DSP) for quicker response and higher reliability.


Main Features

  • Automatically voltage compensation system, ideal voltage at aircraft connector

  • Self diagnose system which would show error code/faulty explanation on the VFD screen

  • Memory stores 10 events

  • Galvanically isolated, low harmonic distortion

  • Thoroughly proven advanced SPWM and IGBT technology

  • Pure sine wave output

  • Eco-friendly, high efficiency, low noise

  • 28VDC military interlock






  • Voltage: 3 x127V/220V±15% or

  • 3 x220V/380V±15%,

  • 3 x240V/415V±15%

  • Or as per your specific requirement

  • (select one individual voltage)

  • Frequency: 40-70Hz

  • Power Factor:

  • ≥0.8 Standard type

  • ≥0.912 pulse type, optional item

  • Inrush current: None, soft start


  • 3x115/200V,3x120/208V(L-N/L-L),

  • Or select one individual voltage

  • Frequency: 400Hz (320-480Hz adjust)

  • Interface:RS232/485 communication port

  • Voltage regulation: ±1% FS(full scale)

  • Frequency regulation: ±0.1%

  • Crest: 1.414±0.1

  • Distortion: THD<3% @ linear load

  • Voltage difference between each phase<3V

  • Line drop compensation:1-10V

  • Voltage recovery: ∆U <10% and rec. time <50 ms at 100% load change

  • Phase angle symmetry:

  • 120°±2° (33% unbalance Load

  • 120°±4° (100% unbalance Load


125% for 600 sec; 150% for 60 sec;

200% for 10 sec.


Input Over/under voltage, phase loss

Over current, Over load,

Inner over heating,Short circuit,

Output Phase loss, wrong phase sequence

Self diagnose and alarm

VFD display and control:

Output voltage, Current, Frequency

Start/Stop,On/off each output

Line drop compensation status

Emergency Stop

Available options

28 VDC, 300-3000 A (45-180KVA  only)

Additional output contactor

Remote control box

Terminal extension for 2 PCS of 7 core cable

Parallel system

Door Interlock

28V Military Interlock

Working condition

Temperature:-40 to 55

Humidity:10~95% non condensing

Noise:< 65dB within 1 meter

IP22 / IP55


Mean Time Between Failure (MTBF) 50,000H

Mean Time To Restoration (MTTR)< 30 min

Electromagnetic compatibility: Meeting relevant requirement of IEC61000-6-2 and EC61000-6-4

Standby power consumption: <65W

No-load power consumption: <2.5KW

Efficiency: 85% at full load for standard type                           

≥95% at full load for 12-pulse type(Optional)




ISO 6858





GJB 181


ERICCO is expert in high quality ER-400W Series Solid-State GPU 400Hz Frequency Converter manufacturing and selling, who is one of the best manufacturers and suppliers of ER-400W Series Solid-State GPU 400Hz Frequency Converter with high precision. We have a professional factory at your service.
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