POPULACE
Generator Automatic Voltage Regulator Leroy Somer AVR R438
Model: R438
OEM-compatible R438 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 | R438 |
| Overall Size | 165×120×65mm |
| Weight | 0.65kg |
| Certification | CE,ISO9001 |
Applications
- Standby and prime diesel generator sets fitted with Leroy Somer 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- Alternator rewinds and rebuilds where the original AVR is obsolete or damaged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 Leroy Somer AVR R438
General Features
 | Generator Automatic Voltage Regulator Leroy Somer AVR R438 Automatic Voltage Regulator Sensing Input 120V or 240V R438 self excited brushless type genset voltage regulator is a compatible replacement for Series R438. |
 | Features * Voltage regulation < +/-1%
|
| Product Name | Generator Automatic Voltage Regulator Leroy Somer AVR R438 | |
| Sensing/Power input | Voltage | 40-150Vac,3 phase |
| Frequency | 50/60 Hz jumper selectable | |
| Output | Voltage | Max 160Vdc at 120 Vac input |
| Current | 10A | |
| Voltage Regulation | < +/-0.5%RMS with 4%ngine governing |
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Read Guide →FAQ
Leroy Somer AVR R438 is an OEM-compatible replacement. Send a photo of your alternator nameplate (model, voltage, frequency) and our engineers confirm the match against R438 before dispatch.
Yes. Output voltage, stability adjustment and protection functions are bench-tested on every unit, and the test record travels with your order.
Leroy Somer AVR R438: overall size 165×120×65mm, shipping weight approx. 0.65kg. Send your panel or packing constraints and we confirm fit.
Leroy Somer AVR R438 is covered by a 13 months factory warranty. Quality issues within the term are replaced or repaired at our cost.
Leroy Somer AVR R438 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 R438 are available upon request. Contact our technical support with your generator setup to receive the documentation.
The technical datasheet and complete specification sheet for R438 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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