--- product_id: 241598794 title: "RJ11 Telephone Surge Protector 10KA, Phone Line & DSL Modem Protection, Fax & Landline Arrestor, Overvoltage Protection Device, 2Mbps Transmission, Easy Install Telecom Protector" brand: "sonew" price: "$14.87" currency: USD in_stock: true reviews_count: 5 category: "Sonew" url: https://www.desertcart.us/products/241598794-rj11-telephone-surge-protector-10ka-phone-line-and-dsl-modem store_origin: US region: United States of America --- # 10KA surge capacity 2Mbps high-speed transmission easy installation RJ11 Telephone Surge Protector 10KA, Phone Line & DSL Modem Protection, Fax & Landline Arrestor, Overvoltage Protection Device, 2Mbps Transmission, Easy Install Telecom Protector **Brand:** sonew **Price:** $14.87 **Availability:** ✅ In Stock ## Summary > ⚡ Stay Connected, Stay Protected — Don’t Let Surges Crash Your Signal! ## Quick Answers - **What is this?** RJ11 Telephone Surge Protector 10KA, Phone Line & DSL Modem Protection, Fax & Landline Arrestor, Overvoltage Protection Device, 2Mbps Transmission, Easy Install Telecom Protector by sonew - **How much does it cost?** $14.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/241598794-rj11-telephone-surge-protector-10ka-phone-line-and-dsl-modem) ## Best For - sonew enthusiasts ## Why This Product - Trusted sonew brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Compatibility:** Perfect for phones, fax machines, modems, and ADSL—one protector to rule them all. - • **Seamless 2Mbps Data Flow:** Maintain crystal-clear, high-speed communication without interruption or lag. - • **Plug & Protect in Minutes:** Effortless setup means instant peace of mind—no tech headaches required. - • **Eco-Smart & Energy Efficient:** Protect your devices and the planet with energy-saving, sustainable design. - • **Unmatched 10KA Surge Defense:** Shield your telecom gear from powerful surges with industry-leading 10,000 amps capacity. ## Overview The RJ11 Telephone Fax Surge Protector by Sonew delivers robust multi-level surge protection with a 10KA capacity and ultra-fast response time under 1 nanosecond. Supporting up to 2Mbps transmission speeds, it safeguards telephones, fax machines, modems, and ADSL devices. Designed for easy installation and energy efficiency, this compact device ensures your communication lines remain secure and uninterrupted, making it an essential upgrade for any professional setup. ## Description desertcart.com: RJ11 Telephone Fax Surge Protector - Protective Device with 10KA Surge Capacity, Multi-Level Protection, 2Mbps Transmission, Easy Installation : Electronics Review: Product works Great - Works great so far! 8 months in. Review: Read this before you install. - The FSD-RJ11 is well built and well designed and should work. The deficiencies are that there is no easy way to mount it, so have some wire ties available to secure it. But the major deficiency is that the pins are not identified and there is no schematic. If you connect it incorrectly, you do not obtain full protection. So I took mine apart. There are two independent 2 wire circuits that are protected. One goes between pins 2-3 on the input side to pins 2-3 on the output side, the other is connected from pins 4-5 to 4-5. Also, don't swap the input and output sides, it matters. ## Features - 1. Advanced Surge Protection: The RJ11 Telephone Fax Surge Protector incorporates a multi-level protection system that ensures low residual voltage and excellent protection efficacy against surges. This device is designed to safeguard your telecommunication devices from strikes and overvoltage situations, keeping your signals secure. - 2. High Current Capacity: This protector features a remarkable through-current capacity of up to 10KA, with a response time of less than 1 . Its superior design guarantees effective surge protection while allowing for a high transmission rate of up to 2Mbps, making it ideal for various communication systems. - 3. Energy Efficient & Eco-friendly: Built with energy-saving components, this surge protector not only extends the life of your devices but is also environmentally friendly. The easy rack structure ensures a hassle-free installation process, allowing you to start protecting your devices immediately without special maintenance. - 4. Versatile Application: The RJ11 Surge Protector is suitable for a wide range of telecommunication equipment, including telephones, fax machines, ADSL, and modems. Its easy installation method makes it a preferred choice for ensuring and overvoltage protection across various setups. - 5. Complete Package & User Support: Each unit comes with a user manual to guide you through the installation process. We ensure that our customers have all necessary resources at hand to maximize the effectiveness of the surge protector, providing peace of mind and comprehensive support. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07ZNZWYZ9 | | Amperage | 10 Kiloamps | | Best Sellers Rank | #105,337 in Electronics ( See Top 100 in Electronics ) #683 in Surge Protectors | | Brand | Sonew | | Compatible Devices | Telephones, Fax Machines, Modems, ADSL devices | | Customer Reviews | 4.0 4.0 out of 5 stars (28) | | Enclosure Material | Petrochemical | | Item Dimensions L x W | 3.15"L x 0.98"W | | Manufacturer | Sonew | | Maximum Current | 10 Kiloamps | | Number of Outlets | 1 | | Number of Ports | 8 | | Other Special Features of the Product | Fast Semiconductor | | Plug Type | Type B | | Power Plug Type | Type B - 3 pin (North American) | | Recommended Uses For Product | Security | | Shape | Rectangle | | Smart Energy Saving | Yes | | UPC | 737983867091 | | Voltage | 110 Volts | ## Product Details - **Brand:** Sonew - **Product Dimensions:** 3.15"L x 0.98"W - **Special Feature:** Fast Semiconductor - **Total Power Outlets:** 1 - **Voltage:** 110 Volts ## Images ![RJ11 Telephone Surge Protector 10KA, Phone Line & DSL Modem Protection, Fax & Landline Arrestor, Overvoltage Protection Device, 2Mbps Transmission, Easy Install Telecom Protector - Image 1](https://m.media-amazon.com/images/I/61WZ34l4veL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Product works Great *by D***D on June 9, 2025* Works great so far! 8 months in. ### ⭐⭐⭐⭐ Read this before you install. *by A***R on July 14, 2025* The FSD-RJ11 is well built and well designed and should work. The deficiencies are that there is no easy way to mount it, so have some wire ties available to secure it. But the major deficiency is that the pins are not identified and there is no schematic. If you connect it incorrectly, you do not obtain full protection. So I took mine apart. There are two independent 2 wire circuits that are protected. One goes between pins 2-3 on the input side to pins 2-3 on the output side, the other is connected from pins 4-5 to 4-5. Also, don't swap the input and output sides, it matters. ### ⭐⭐ No internet *by B***E on February 20, 2026* Does not allow internet via j 11 phone connection --- ## 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.us/products/241598794-rj11-telephone-surge-protector-10ka-phone-line-and-dsl-modem](https://www.desertcart.us/products/241598794-rj11-telephone-surge-protector-10ka-phone-line-and-dsl-modem) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*