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Yueqing Heyi Electrical Co., Ltd.

Automatic Voltage Regulator for Generator Set, Generator Voltage Regulator, AVR for Generator manufacturer / supplier in China, offering Compatible Marelli Brushless Generator AVR M40fa640A, Ce RoHS Split Core Current Transformer Manufacturer Flexible Low Voltage CT for Energy Monitoring, Top Sell Three Phase Power Capacitor for Capacitor Battery and so on.

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Supplier Homepage Product Generator AVR controller Automatic voltage regulator AVR Compatible Marelli Brushless Generator AVR M40fa640A

Compatible Marelli Brushless Generator AVR M40fa640A

Purchase Qty.:
10-99 100-999 1,000+
FOB Unit Price: US $153.22 US $152.22 US $151.22
Purchase Qty. (Pieces) FOB Unit Price
10-99 US $153.22
100-999 US $152.22
1,000+ US $151.22
Get Latest Price
Production Capacity: 100000PCS/ Month
Transport Package: 0.35kg/18*13*4cm/Per PC
Payment Terms: L/C, T/T, Paypal, Money Gram, Western Union

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Basic Info
  • Model NO.: M40FA640A
  • Input Voltage: 160~260V
  • Phase: Single and Three Phase
  • Sensing Input Voltage: 190 -264V AC Max,2 or 3 Phase
  • Max Input Current: 0.33A
  • Set Point: 75VDC
  • Specification: Rosh package
  • Purpose: Generator
  • Resistance: 10ohms Minimum
  • Function: Paralleling Fucntion
  • Output Voltage: Max 120V AC
  • Test.Temperature: 75 Degree
  • Trademark: OEM/HEYI
  • Origin: Zhejiang Yueqing
Product Description

 M40FA640A Automatic Voltage Regulator is developed by Marelli suitable for Three-phase Synchronous Generators. Which is provided with internal circuits in order to reduce the excitation, when running at low speed, in order to avoid damages to the excitation system of the generator.


1) Supply Voltage:170-277V(50/60Hz)

2) Power Supply:1000 VA (max)

3) Power Dissipated:30W (max)

4) Voltage Sensing:170-270/380-415/440-480V

 (three or single phase sensing)

5) Output Voltage(DC): 80V (max, continuous)

6) Output Current(DC):8A (max, continuous)

7) Output Current(DC):15A (max 1 minute forcing)

8) Regulation Accuracy: +/-0.5% steady state conditions, for rated voltage and PF

9) Voltage Drift: +/-0.5% of voltage change for 50°C T amb change

10) Response Time: 1 cycle (12ms-16.6ms)

11) Operating Temperature: -30°C- +70°C

12) exciter Field Resistance: 3.5Ω (min)-20Ω (max)


 Input Voltage 170 - 277V
 Frequency 50/60 Hz
 Sensing Voltage 170 - 270V / 380 - 415V / 440 - 480 V, Three or Single Phase Sensing
 Output Voltage Continuous  80V DC
 Current Continuous 8A
 Resistance 3.5 to 20 ohms
 Regulation  ±0.5% steady state conditions, for rated Voltage and PF
 Thermal Drift ±0.5%,of voltage change for 50°C tamb change
 AVR response 16 to 20 ms
 Unit power dissipation 30W max
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