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Generator Parts & Accessories (379)

Compatible Marelli brushless Generator AVR M40FA640A

FOB Price: US $195 - 230 / Piece | Get Latest Price
Min.Order Quantity: 1 Piece/Pieces Marelli AVR M40FA640A
Supply Ability: 500 Piece/Pieces per Month Marelli AVR M40FA640A
Port: shenzhen
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
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Quick Details

Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Model Number:
brushless generator
Supply Voltage:
Power Supply:
1000 VA (max)
Power Dissipated::
30W (max)
exciter Field Resistance::
3.5Ω (min)-20Ω (max)

Packaging & Delivery

Packaging Details: Standard carton
Delivery Detail: in stock

Note: If the contents mentioned other manufacturers's names and models, the narrative only for informational purposes, this product is not original, but it can compatible with them

Compatible Marelli brushless Generator AVR M40FA640A



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
 Build up voltage



Related Product Series:


* Biogas Power Generation   
*Natural Gas Power
*Field Engineering
*Electric Power



Why choose us?


Dongguan Feirui Electronics Co.,LTD engages in developing and producing engine parts include starting controller, speed control units,automatic voltage regulator(AVR), synchronizer, load share module,and other correlative generator accessories, such as chargers ,sensors, actuators and so on.

Due to our unremitting efforts of many years,nowadays we have set up agency in Nigeria,Egypt,Thailand and Philippines.

Our belief is Qulity first,credit and service

Our goal is striving for innovation,making satisfied generator parts 

we expect to create more achievement tomorrow and welcome you to contact us for cooperation.



sales4000pcs/monththe fastest transit time2days!
inventory situationa lauge number of stocksoperational advantageseasy for operation
production cycle1~3daysServiceanswer all of your questions within 1day


Payment Term

1.We accept L/C,D/P,D/A, Alipay, West Union, TT. Cash. 

2.All major Credit cards are accepted through secure payment processor ESCROW.

Shipment Term

1. We Ship to Worldwide, except APO/FPO 

2. Orders processed timely after showing remittance copy. 

3. We only ship to confirmed order addresses. Your order address MUST MATCH your  address. 

4.Items are shipped from China by Airmail, reach most of the countries within 4 to 20 business days. 

5.Delivery time depends on destination and other factors, it may takes up to 20 business days.


6. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. 

7. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!


1. Guarantee:365 days after selled. 

2. During guarantee,the items share free repairs or replacement. 

3. Customer is responsible for the freight come-and-go,and the custom tax. 

4. You may consider to send the defective item with a economical way,and we send back the repaired items with your new order together. 

5. To save the cost,pls send the item back without packing. 

6. Pls provide the defective appearance and related invoice number. 

7.We do not repair or replace item with an expired warranty. 

8.All emails will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your email or give us a call any time.

We are expecting the long time and mutual benefit cooperation with you!

Not exactly what you want? 1 request,multiple quotations Get Quotations Now >>
Dongguan Feirui Electronics Co., Ltd. is located in Donguan City, which is known as "the World's Factory" in China. We are engaged in developing and producing engine parts including starting controllers, speed control units, automatic voltage regulators (AVR), synchronizers, load share modules, and other correlative generator accessories, such as chargers, sensors, actuators and other related products.

We have emulational system which is the most advanced in the same indus... View detail

Basic Information

Business Type: Manufacturer, Trading Company  
Main Products: Generator Electronic Accessories (Generator Voltage Regulator,Generator Speed Controller,Generator Controller,Engine Magnetic Actuator,GPRS Data Transmitter,Electrical Gauge)  
Number Of Employees: 51 - 100 People  

Trade & Market

Main Markets: Domestic Market
Mid East
Southeast Asia
South America
Eastern Europe
South Asia
Total Annual Sales Volume: US$2.5 Million - US$5 Million  
Export Percentage: 81% - 90%  
Trade Shows: Shanghai Power Exhibition    

Factory Information

Factory Size (Sq.meters): 3,000-5,000 square meters  
Factory Location: Area A, No. 18, Chashang Industrial Blvd., Wentang Industrial Zone, Dongcheng District, Dongguan City, Guangdong Province, China  
No. of Production Lines: 8  
Number of R&D Staff: 5 - 10 People  
Number of QC Staff: 5 - 10 People  
Certifications: ISO Certification,CHAMBER OF E-COMMERCE BOARD MEMBER COMPANY,trade mark registration,trade mark registration,trade mark registration,trade mark registration
Contract Manufacturing: OEM Service Offered   Design Service Offered  

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How It Works

China (Mainland) | Manufacturer, Trading Company | Contact Details
Key Strengths: Assessment Report by TÜV Rheinland
Top 3 Markets: Domestic Market 38.53%, Mid East 22.29%, Africa 17.52%
Experience: Established 2007 , 7 years OEM

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Mr. Alan Wang
Mr. Alan Wang:
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