AVR R438 Automatic Voltage Regulator for Generator Volt Regulation
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AVR R438 Automatic Voltage Regulator for Generator Volt Regulation
The Knowtek AVR R438 is an excellent voltage regulator for alternators with AREP or PMG excitation. It ensures that excitation current is controlled to maintain a steady output voltage.
AVR R438 Automatic Voltage Regulator for Generator Volt Regulation
商品＃: 31236002

AVR R438 Automatic Voltage Regulator for Generator Volt Regulation

回答者の89%がこの商品を友人に勧めたいと回答

商品＃: 31236002

JPY 10757

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今すぐ注文すると 頃に届きます 火曜日, 9月 29
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The Knowtek AVR R438 is an excellent voltage regulator for alternators with AREP or PMG excitation. It ensures that excitation current is controlled to maintain a steady output voltage.
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この商品の利点

Stable Voltage Control
Ensures consistent power output by stabilizing voltage levels, protecting sensitive equipment from fluctuations during generator operation.
Wide Compatibility
Designed to work with various generator models, making it a versatile choice for different applications and enhancing user convenience.
Robust Construction
Built to withstand harsh conditions and prolonged use, providing durability and reliability for both residential and commercial generators.

製品詳細

Shop for Knowtek AVR R438 Automatic Voltage Regulator online at Ubuy 日本. Ensure stable generator volt regulation for uninterrupted power supply.
  • Voltage regulation: ± 0.5%
  • Simple to set and use, reliable performance
  • Compliant with I.E.C. 60034-1 and U.L. 508 / C.S.A. standards
  • Compatible with LSA42.3, LSA43.2, LSA44.3, LSA44.2 alternators
  • Features U/F and LAM functions, response time of 500 ms
  • Operating conditions: -40°C to +70°C, storage conditions: -55°C to +85°C, hygrometry: 98%
Package Dimensions7.05 x 5.47 x 2.91 inches (17.9 x 13.9 x 7.4 cm)
Item Weight1.52 pounds (690 grams)
ManufacturerKNOWTEK
Item model numberR438

どんな人にお勧めですか？

Suitable For
  • Generator Owners

    Ideal for individuals who own generators and require stable voltage regulation for reliable performance during power outages.

  • RV Enthusiasts

    Great for RV owners needing dependable voltage regulation for onboard generators, enhancing their travel experience with consistent power.

  • Industrial Use

    Useful for businesses that rely on generators for backup power, ensuring equipment operates smoothly without voltage fluctuations.

Not Suitable For
  • Small Generators

    Not suitable for small-scale generators, as it may be over-engineered and unnecessarily complex for basic requirements.

製品説明書

AVR R438 Automatic Voltage Regulator for Generator Volt Regulation

何か質問はありますか？ チャットでお問い合わせください

お客様の質問と回答

  • 質問: What is the AVR R438 Automatic Voltage Regulator used for?

    回答: The AVR R438 Automatic Voltage Regulator is primarily used to maintain stable voltage levels in generators. It ensures that the output voltage remains consistent, which is essential for protecting sensitive electronic equipment from voltage fluctuations. This regulator operates by continuously monitoring the generator's output and adjusting the excitation to maintain the desired voltage level, making it ideal for residential use, commercial applications, and powering machinery.
  • 質問: How does the AVR R438 improve generator performance?

    回答: The AVR R438 enhances generator performance by providing precise voltage regulation. When the load changes, this device quickly responds to fluctuations, ensuring that voltage output remains stable. This capability prevents equipment damage and allows generators to operate more efficiently, which is particularly beneficial in industrial settings where consistent power is vital for machine operation and productivity.
  • 質問: Is the AVR R438 compatible with all generator types?

    回答: The AVR R438 is compatible with a wide range of generators, especially those used in typical AC synchronous alternators. However, it is always best to check the specifications of your generator to ensure compatibility. This compatibility allows users to upgrade their existing generators with enhanced voltage regulation capabilities without needing to purchase new units.
  • 質問: What are the key technical features of the AVR R438?

    回答: The AVR R438 comes equipped with features like built-in protection against overvoltage and short circuits, which guarantee safe operation under various load conditions. Additionally, it includes a field flashing option for easy setup. These features contribute to ensuring the longevity of both the voltage regulator and the generator it is connected to, making it a reliable choice for consumers.
  • 質問: Can the AVR R438 be installed by a non-professional?

    回答: While the AVR R438 can technically be installed by someone with basic electrical knowledge, hiring a qualified technician is recommended to ensure proper installation. Correct setup is crucial for optimal performance and safety, particularly in applications where equipment is sensitive to voltage levels. An experienced technician can ensure that the installation meets safety standards and operates efficiently.
  • 質問: What applications benefit most from the AVR R438?

    回答: The AVR R438 is beneficial in scenarios requiring stable power supply, including residential backup systems, construction sites, and industrial operations. It is particularly advantageous for venues that depend on sensitive equipment, such as hospitals and data centers, where power integrity is critical. This versatility makes it a preferable choice for various users looking to enhance their generator's reliability.
  • 質問: How does the AVR R438 respond to fluctuating loads?

    回答: The AVR R438 automatically adjusts the generator's excitation based on load changes, ensuring that voltage output remains within specified limits. For example, when high-demand equipment (like welders) is turned on, the regulator instantly compensates to prevent voltage drops, protecting devices connected to the generator from potential damage due to low voltage conditions.
  • 質問: What are the dimensions of the AVR R438?

    回答: The AVR R438 typically has a compact design, measuring approximately 3.5 x 5.5 inches, making it easily integrable into various generator setups without needing excessive space. This compactness allows for flexible placements within generator enclosures, facilitating easier access for maintenance and monitoring, which can be beneficial in cramped or limited spaces.
  • 質問: What voltage range can the AVR R438 regulate?

    回答: The AVR R438 is capable of regulating a voltage range of approximately 120V to 480V, depending on the generator configuration. This broad range makes it suitable for a variety of generator applications, providing peace of mind for users who require different operational voltages depending on their power needs. This flexibility makes it a versatile component for both light and heavy-duty generators.
  • 質問: Where can I buy AVR R438 Automatic Voltage Regulator for Generator Volt Regulation in Japan?

    回答: You can purchase the AVR R438 Automatic Voltage Regulator for Generator Volt Regulation through Ubuy, an online retail platform that offers a wide range of electrical components. Ubuy provides a user-friendly shopping experience, detailed product listings, and convenient purchasing options, making it an ideal choice for acquiring this essential voltage regulation device.

Knowtek Voltage Regulators R438 Editorial Review

The Knowtek AVR R438 is an automatic voltage regulator designed for generator voltage regulation. It provides a stable output voltage, protecting your equipment from voltage fluctuations. The device is easy to install and user-friendly, with adjustable voltage settings. Users have reported positive experiences with the Knowtek AVR R438, praising its performance and reliability. However, some customers have reported issues with compatibility and customer support.

お客様のレビュー＆評価

1 カスタマー評価
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この商品のレビュー

お考えをお聞かせください

長所

  • Stable output voltage
  • Easy installation
  • Adjustable voltage settings
  • Good performance
  • Reliable

短所

  • Compatibility issues

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

9 September 2026 · via Trustpilot
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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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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JPY 10757

今すぐ注文すると 頃に届きます 火曜日, 9月 29

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最高の物流パートナー
  • fedex
  • dhl
最速の国際配送

特徴と利点

  • Designed analog AVR.
  • Regulates voltage for alternators with AREP or PMG excitation.
  • Maintains output voltage.
  • Good replacement for AVR RS437 and R438C.
  • Compatible Alternators: LSA42.3, LSA43.2, LSA44.3, LSA44.2

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