POPULACE
Generator Automatic Voltage Regulator Maralli AVR M40FA640A
Model: M40FA640A
Compatible M40FA640A generator AVR at factory wholesale price. 100% bench-tested, 13-month warranty, in stock. Request wiring diagram, datasheet & quote.
| Warranty | 13 months |
|---|---|
| Place of Origin | Fujian, China |
| Brand Name | POPULACE |
| Model Number | M40FA640A |
| Overall Size | 230×170×50mm |
| Weight | 0.9kg |
| Certification | CE,ISO9001 |
Applications
- Standby and prime diesel generator sets fitted with Maralli alternators in telecom, data-centre and hospital backup power
- Commercial and industrial gensets requiring stable output voltage under varying load
- Alternator rewinds and rebuilds where the original AVR is obsolete or damaged
Product Description
Generator Automatic Voltage Regulator Maralli AVR M40FA640A
General Features
 | Generator Automatic Voltage Regulator Maralli AVR M40FA640A Generator AVR M40FA640A For Diesel Generator is a half-wave phase controlled thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator. |
 | Features Brushless Generator AVR M40FA640A For Alternator Parts 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. |
| Supply Voltage | 170-277V(50/60Hz) |
| Power Supply | 1000 VA (max) |
| Power Dissipated | 30W (max) |
| Voltage Sensing | 170-270V(1/3 – phase) |
| Output Voltage(DC) | 80V (max, continuous) |
| Output Current(DC) | 8A (max, continuous) |
| Output Current(DC) | 15A (max 1 minute forcing) |
| Regulation Accuracy | +/-0.5% steady state conditions, for rated voltage and PF |
| Voltage Drift | +/-0.5% of voltage change for 50°C T amb change |
| Response Time | 1 cycle (12ms-16.6ms) |
| Operating Temperature | -30°C- +70°C |
| exciter Field Resistance | 3.5Ω (min)-20Ω (max) |
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Read Guide →FAQ
Maralli AVR M40FA640A is an Compatible replacement. Send a photo of your alternator nameplate (model, voltage, frequency) and our engineers confirm the match against M40FA640A before dispatch.
Yes. Output voltage, stability adjustment and protection functions are bench-tested on every unit, and the test record travels with your order.
Maralli AVR M40FA640A: overall size 230×170×50mm, shipping weight approx. 0.9kg. Send your panel or packing constraints and we confirm fit.
Maralli AVR M40FA640A is covered by a 13 months factory warranty. Quality issues within the term are replaced or repaired at our cost.
Maralli AVR M40FA640A carries CE,ISO9001 certification from our ISO9001-certified Xiamen facility.
Yes. POPULACE Electronic Co., Ltd. manufactures generator parts in Xiamen, Fujian - factory visits are welcome.
Yes. Samples are available for testing; express freight (FedEx, DHL, UPS, TNT, Aramex) typically delivers within 3-7 days.
In-stock items ship 2-3 days after payment; larger batches are produced in 3-7 days. Sea, air or express shipping is arranged to your preference.
T/T, PayPal, Western Union, MoneyGram, Alibaba order link and RMB transfer are all supported.
Yes. Detailed terminal connection wiring diagrams and user manuals for M40FA640A are available upon request. Contact our technical support with your generator setup to receive the documentation.
The technical datasheet and complete specification sheet for M40FA640A can be provided directly by our sales team. Contact [email protected] or submit an inquiry to receive the PDF specification.
20 Years Experience for Genset Parts
POPULACE has 20 years of experience supplying generator parts worldwide — reliable, OEM-compatible, and built for continuous operation.
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