Thunder Parts
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Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
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Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
AVR R250 for leroy somer generator is a rapid, stable and reliable automatic voltage regulator with a 2-year warranty.
Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !
Item #: 7686972

Thunder Parts R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement - !

89% of respondents would recommend this to a friend

Item #: 7686972

DOP 3873

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AVR R250 for leroy somer generator is a rapid, stable and reliable automatic voltage regulator with a 2-year warranty.
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What Stands Out

Exact Replacement
Designed as a perfect replacement for original components, ensuring compatibility and ease of installation, reducing downtime and maintenance costs for users.
Stable Voltage Control
Provides superior voltage regulation, protecting sensitive equipment from voltage fluctuations and improving overall operational efficiency across various applications.
Durable Design
Built with high-quality materials for longevity, ensuring reliable performance in demanding environments while minimizing the need for frequent replacements.

Product Details

Shop for Thunder Parts R250 AVR - Automatic Voltage Regulator at the best price on Ubuy Dominican Republic. Get the exact generic replacement for your voltage regulator.
  • Exact generic replacement AVR - Automatic Voltage Regulator
  • Power input: AC 80-140V (50 / 60Hz)
  • Maximum output: DC 90V / 6A / 10S
  • Voltage regulation rate: ≤ ± 1%
  • External voltage trimming 1K / 2W potentiometer ± 10%
  • Voltage regulation +/- 0.5% at steady state and constant speed
Package Dimensions6.4 x 4.4 x 2.4 inches (16.3 x 11.2 x 6.1 cm)
Item Weight8.8 ounces (249.48 grams)
ManufacturerThunder Parts
Item model numberGeneric Replacement R250 AVR

Who Should Buy?

Suitable For
  • Home Generators

    Ideal for homeowners who need reliable power supply stabilization during outages or in remote areas.

  • Small Businesses

    Great for small businesses that require consistent voltage for sensitive equipment, ensuring optimal performance and longevity.

  • DIY Projects

    Perfect for hobbyists and DIY enthusiasts working on electrical projects that require stable voltage for success.

Not Suitable For
  • Heavy Industries

    Not suitable for heavy-duty industrial applications that require high-capacity voltage regulation beyond this product's specifications.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is an R250 AVR and how does it work?

    Answer: The R250 AVR (Automatic Voltage Regulator) is a device designed to maintain consistent voltage levels in electrical systems. It automatically adjusts the output voltage to prevent fluctuations caused by varying load demands. This is crucial in ensuring that sensitive electronic equipment operates efficiently and safely. For example, if you have a home generator, an R250 AVR can protect your appliances by stabilizing the voltage output, thus reducing the risk of damage caused by voltage spikes.
  • Question: What are the key benefits of using an Automatic Voltage Regulator?

    Answer: Using an Automatic Voltage Regulator like the R250 AVR ensures that your electrical appliances receive optimal voltage levels, which enhances their performance and lifespan. Additionally, it protects devices from electrical surges and sags that can cause malfunctions or damage. For scenarios where uninterrupted power supply is critical, such as in medical equipment or essential home appliances, a reliable AVR becomes an indispensable component in safeguarding your investments.
  • Question: Can the R250 AVR be used with different types of generators?

    Answer: Yes, the R250 AVR is compatible with various generator models. Its design allows it to function with single-phase and some three-phase systems. When selecting an AVR, ensure it matches the generator's specifications and output capacity. This versatility makes it suitable for a range of applications, whether for home backup power systems or commercial generators, offering a reliable solution to maintain voltage stability across the board.
  • Question: What does 'exact generic replacement' mean for the R250 AVR?

    Answer: The term 'exact generic replacement' indicates that the R250 AVR matches the specifications and functions of the original manufacturer's product without being a branded item. This means it provides similar performance and quality at a potentially lower cost. Users can confidently replace their original AVR with this generic option knowing it will fulfill the same role, particularly suitable in scenarios where the original part is no longer available or if cost efficiency is a priority.
  • Question: How do I install the R250 AVR?

    Answer: Installing the R250 AVR involves disconnecting the generator from power sources and carefully following the manufacturer's wiring diagram. Typically, this includes connecting the AVR to the generator's output terminals. If you’re not familiar with electrical systems, consider consulting a qualified electrician to ensure safety and proper functionality. After installation, it's important to test the system to confirm the AVR is effectively regulating the voltage and protecting your equipment.
  • Question: What signs indicate that I need an R250 AVR?

    Answer: If you notice frequent electrical issues such as flickering lights, fluctuating appliance performance, or tripped breakers, it may be time to consider an R250 AVR. These signs often indicate inadequate voltage regulation, putting your devices at risk. For homes with high electrical loads or sensitive equipment, the presence of an AVR helps maintain ideal operating conditions and prevents potential damages, making it a crucial investment.
  • Question: Is the R250 AVR suitable for outdoor use?

    Answer: The R250 AVR itself is not typically rated for direct outdoor exposure, as moisture and dust can affect its performance. However, when installed in a generator that is suitable for outdoor use, ensure the AVR is housed in areas that protect it from the elements. This setup allows for safe operation during outdoor events or in off-grid scenarios where consistent voltage regulation is required, provided that protection from environmental factors is maintained.
  • Question: What appliances can benefit from using an R250 AVR?

    Answer: Many appliances can benefit from an R250 AVR, especially sensitive electronics like computers, refrigerators, and medical equipment that require stable power to function correctly. By using an AVR, you can prolong the life of these devices and improve their efficiency. For instance, in a home setting, using an AVR with a generator during power outages ensures that essential household items operate smoothly without damage caused by voltage inconsistencies.
  • Question: How can I test if my R250 AVR is functioning correctly?

    Answer: To test the functionality of your R250 AVR, you can use a multimeter to measure the output voltage while the generator is running. Compare the output voltage with the specified settings. If the AVR is functioning properly, the output should remain stable within the required range. If you notice significant fluctuations or no response at all, it could indicate an issue that needs addressing. Regular checks can assure you that your voltage regulation system is reliable, particularly before important tasks or events.
  • Question: Where can I buy R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement in Dominican Republic?

    Answer: You can purchase the R250 AVR - Automatic Voltage Regulator - Exact Generic Replacement at Ubuy. They offer a wide selection of products, ensuring that you can find the right AVR for your needs. Ubuy provides a trusted platform for making your purchase, complete with various shipping and payment options tailored for your convenience.

Thunder Parts Voltage Regulators Generic Replacement R250 AVR Editorial Review

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Customer Reviews & Ratings

17 customers ratings
  • 5 Star
    75%
  • 4 Star
    16%
  • 3 Star
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  • 1 Star
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Pros

  • Reliable voltage regulation
  • Compact design
  • Easy installation
  • User-friendly operation
  • Durable construction

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“Great products and very good service: very easy and very fast international delivery.”

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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

DOP 3873

Order now and get it around Sunday, September 27

QTY:

Only 16 items left in stock.
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Features & Benefits

  • Suitable for alternators LSA 42.2, 43.2, 44.2, 46.2, 47.2 and compatible with the SHUNT excitation system.
  • Stable voltage regulation rate of ≤ ± 1% with external voltage trimming 1K / 2W potentiometer ± 10%.
  • Voltage regulation of +/- 0.5% at steady state and constant speed.
  • Rapid response time (500ms) for a transient voltage variation amplitude of ± 20%.
  • Phase to neutral voltage sensing with optimum management of impact loads using micro-processor technology.
  • The supply is protected with an 8A fuse, slow action(supports 10A for 10s).

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