--- product_id: 470952784 title: "R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty!" brand: "thunder parts" price: "37795 kr" currency: ISK in_stock: true reviews_count: 2 category: "Thunder Parts" url: https://www.desertcart.is/products/470952784-r448-avr-for-leroy-somer-automatic-voltage-regulator-exact-generic store_origin: IS region: Iceland --- # 10A overload current for 10s 150V - 5060Hz shunt supply Built-in overload & short circuit protection R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty! **Brand:** thunder parts **Price:** 37795 kr **Availability:** ✅ In Stock ## Summary > ⚡ Power up with confidence — the R448 AVR keeps your generator flawless and fearless! ## Quick Answers - **What is this?** R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty! by thunder parts - **How much does it cost?** 37795 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/470952784-r448-avr-for-leroy-somer-automatic-voltage-regulator-exact-generic) ## Best For - thunder parts enthusiasts ## Why This Product - Trusted thunder parts brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Overload Defense:** Automatically reduces excitation current after 10A overload to protect your system. - • **Plug-and-Play Replacement:** Exact generic fit for R448 with a 2-year warranty—upgrade without hassle. - • **Precision Voltage Control:** Closed-loop regulation ensures stable generator output voltage every time. - • **Wide Voltage Compatibility:** Supports input taps from 95V up to 520V for versatile generator setups. - • **Reliable Power Input Protection:** Fused power inputs safeguard against electrical faults and extend device lifespan. ## Overview The R448 Automatic Voltage Regulator by Thunder Parts delivers precise closed-loop voltage control for generators, featuring a 10A rated overload current with automatic current reduction, wide voltage sensing range (95-520V), and built-in protections against overload, short circuit, and sensing loss. Designed as an exact generic replacement with a 2-year warranty, it ensures reliable, hassle-free performance for professional-grade power management. ## Description The R448 Automatic Voltage Regulator (AVR) is an advanced electronic component that provides closed loop control of the generator output voltage. The Automatic Voltage Regulator (AVR) is an advanced electronic component that provides closedloop control of the generator’s output voltage.Normal AVR supply power:2 auxiliary windings (X1, X2, ans Z, Z2). Shunt supply: 150V - 5060Hz. Rated overload current:10A, 10s. Electronic built- in )overload, short circuit, and loss of sensing) protecting: If excitation current raises over 10 amps for more then 10 seconds, excitation current will drop automatically to about 1A. To reset AVR protection, the generator must be stopped )or by cutting supply voltage to the AVR).Protection of power inputs by fuses F1 Voltage sensing: 5VA insulated transformer with input voltage taps at: Terminals 0 - 110V = 95 to 140V Terminals 0 - 220V = 170 to 260V Terminals 0 - 380V = 340 to 520V Review: Worked very well in generator FG Wilson Review: Buen producto ## Features - Normal AVR supply power:2 auxiliary windings (X1, X2, ans Z, Z2) - Shunt supply: 150V - 5060Hz Rated overload current:10A, 10s. - Electronic built- in )overload, short circuit, and loss of sensing) protecting: If excitation current raises over 10 amps for more then 10 seconds, excitation current will drop automatically to about 1A. - To reset AVR protection, the generator must be stopped )or by cutting supply voltage to the AVR). Protection of power inputs by fuses F1 - Voltage sensing: 5VA insulated transformer with input voltage taps at: Terminals 0 - 110V = 95 to 140V. Terminals 0 - 220V = 170 to 260V. Terminals 0 - 380V = 340 to 520V ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07LFCPGT6 | | Brand | Thunder Parts | | Customer Reviews | 4.8 4.8 out of 5 stars (7) | | Date First Available | 17 September 2022 | | Item Weight | 1.12 Kilograms | | Item model number | R448 AVR | | Manufacturer | Thunder Parts | | Manufacturer Part Number | R448 AVR | | Package Dimensions | 22.6 x 16.2 x 6.7 cm; 1.12 kg | ## Product Details - **Brand:** Thunder Parts - **Manufacturer:** Thunder Parts - **Material:** Plastic | Metal - **UPC:** 194031263685 ## Images ![R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty! - Image 1](https://m.media-amazon.com/images/I/61We4v+ycdL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by R***R on 27 February 2025* Worked very well in generator FG Wilson ### ⭐⭐⭐⭐⭐ Review *by E***O on 29 May 2024* Buen producto ## Frequently Bought Together - R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty! - Thunder Parts | AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty - DEVMO AVR SX460 Automatic Voltage Regulator Control Models Accessories Compatible with Stamford Generator Genset --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/470952784-r448-avr-for-leroy-somer-automatic-voltage-regulator-exact-generic](https://www.desertcart.is/products/470952784-r448-avr-for-leroy-somer-automatic-voltage-regulator-exact-generic) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-04-29*