--- product_id: 114237986 title: "R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty!" brand: "thunder parts" price: "683.60 DT" currency: TND in_stock: true category: "Thunder Parts" url: https://www.desertcart.tn/products/114237986-r448-avr-for-leroy-somer-automatic-voltage-regulator-exact-generic store_origin: TN region: Tunisia --- # 10A overload current for 10s Exact generic R448 replacement 2-year warranty protection R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty! **Brand:** thunder parts **Price:** 683.60 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power Perfected: Keep your generator running smooth and safe, always. ## 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?** 683.60 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/114237986-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 - • **Seamless Compatibility:** Direct, exact generic replacement for Leroy Somer R448 – no guesswork, just plug and play. - • **Durability You Can Trust:** Built-in electronic protections against short circuits and loss of sensing, backed by a 2-year warranty. - • **Precision Voltage Control:** Maintains stable output with 5VA insulated transformer taps for 110V, 220V, and 380V inputs. - • **Effortless Reset Mechanism:** Simple reset by stopping the generator or cutting supply voltage ensures minimal downtime. - • **Robust Overload Protection:** Automatically reduces excitation current after 10A overload for 10 seconds, safeguarding your generator. ## Overview The R448 AVR by Thunder Parts is a high-precision automatic voltage regulator designed as an exact generic replacement for the Leroy Somer R448 model. Featuring a robust 10A overload current protection, multi-voltage sensing taps, and built-in electronic safeguards, it ensures stable and reliable generator performance. Backed by a 2-year warranty, this durable unit offers professional-grade reliability and easy reset functionality, making it an essential upgrade for any power system. ## Description Buy R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty!: Voltage Regulators - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - Exact Generic Replacement for R448 | 2 Year Warranty! 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 | | Best Sellers Rank | #1,755,691 in Automotive ( See Top 100 in Automotive ) #731 in Automotive Replacement Alternator Voltage Regulators | | Brand Name | Thunder Parts | | Color | Black | | Customer Reviews | 4.1 4.1 out of 5 stars (9) | | Manufacturer | Thunder Parts | | Material Type | Plastic | Metal | | Model | R448 AVR | | Part Number | R448 AVR | | UPC | 194031263685 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Thunder Parts - **Color:** Black - **Material:** Plastic | Metal - **UPC:** 194031263685 - **Unit Count:** 1.0 Count ## 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) ![R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty! - Image 2](https://m.media-amazon.com/images/I/51GET1BclTL.jpg) ![R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty! - Image 3](https://m.media-amazon.com/images/I/51Ahh9gTfSL.jpg) ![R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty! - Image 4](https://m.media-amazon.com/images/I/51EI1wwfl6L.jpg) ![R448 AVR for Leroy Somer | Automatic Voltage Regulator | Exact Generic Replacement for R448 | 2 Year Warranty! - Image 5](https://m.media-amazon.com/images/I/61PjDeBqa-L.jpg) ## 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.tn/products/114237986-r448-avr-for-leroy-somer-automatic-voltage-regulator-exact-generic](https://www.desertcart.tn/products/114237986-r448-avr-for-leroy-somer-automatic-voltage-regulator-exact-generic) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-16*