--- product_id: 446482088 title: "ELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino Projects" price: "€ 29.00" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.fi/products/446482088-elegoo-4-channel-dc-5v-relay-module-with-optocoupler-arduino store_origin: FI region: Finland --- # 10A relay contact rating 4 independent 5V relay channels Optocoupler isolation for safe control ELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino Projects **Price:** € 29.00 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your DIY projects with precision relay control — don’t get left in the dark! ## Quick Answers - **What is this?** ELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino Projects - **How much does it cost?** € 29.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/446482088-elegoo-4-channel-dc-5v-relay-module-with-optocoupler-arduino) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **High Load Capacity:** Each relay supports up to 10A at 250V AC or 30V DC, perfect for demanding industrial or DIY projects. - • **Optocoupler Isolation:** Safeguard your microcontroller with optocoupler-separated input stages, ensuring noise-free and reliable switching. - • **Flexible Wiring Options:** Choose normally open or normally closed configurations with convenient screw terminals tailored to your circuit needs. - • **Quad-Channel Power Control:** Manage up to four devices independently with active-low inputs and clear status LEDs for instant diagnostics. - • **Universal MCU Compatibility:** Seamlessly integrates with Arduino, AVR, PIC, ARM, and STM32 platforms—empowering your next smart automation build. ## Overview The ELEGOO 4 Channel DC 5V Relay Module features four independent relay channels with optocoupler isolation, each capable of handling up to 10A loads. Designed for seamless integration with popular microcontrollers like Arduino and STM32, it offers flexible NO/NC wiring and status LEDs for easy troubleshooting, making it an essential component for professional-grade automation and control projects. ## Description desertcart.com: ELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino Projects | Four Active-low Relay Channels with Optocouplers, Status LEDs, NO/COM/NC Terminals and JD-VCC for Flexible 5V Control Wiring : Industrial & Scientific Review: Good Quality, Works Well! - Easy interface, saves time building. Used for added accessory control in my truck. Review: Well made and tested top notch - I bought these to go with the Arduino board and have not used them yet. I did run tests on them to be sure they would work properly. They work great when tested and will function perfectly when programed. The board looks great, the soldering is clean and the parts are all well mounted. I have no doubt that it will work as advertised when it's time to go on the job. ## Features - Four Independent 5 V Relay Channels: Control four separate loads from compatible microcontroller outputs; each channel uses an active-low input and has its own status LED for easier wiring checks and troubleshooting - Optocoupler-Equipped Input Stages: Four optocouplers separate the control-input stages from the relay-drive circuitry; use the JD-VCC/VCC configuration required by your project and follow the board documentation for isolated-power setups - 10 A Relay Contact Rating: Each relay is marked for up to 10 A at 250 V AC or 30 V DC under the relay manufacturer's specified conditions; choose wiring, protection and load types appropriate to the application - Flexible NO/NC Wiring: Each relay channel includes NO, COM and NC screw terminals, allowing the connected circuit to use normally open or normally closed operation - Compatible with Common MCU Projects: 5 V control module for compatible Arduino, AVR, PIC, ARM and STM32 projects; package includes one 4-channel relay module, and controller boards, power supplies and load wiring are not included ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #20,624 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #16 in Electrical Relays | | Customer Reviews | 4.5 out of 5 stars 154 Reviews | ## Product Details - **Connector Type:** Screw - **Contact Material:** Tungsten - **Contact Type:** Normally Open - **Current Rating:** 10 Amps - **Mounting Type:** PCB Mount ## Images ![ELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino Projects - Image 1](https://m.media-amazon.com/images/I/71-LmPoCd9L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Quality, Works Well! *by J***. on February 13, 2025* Easy interface, saves time building. Used for added accessory control in my truck. ### ⭐⭐⭐⭐⭐ Well made and tested top notch *by J***D on December 25, 2023* I bought these to go with the Arduino board and have not used them yet. I did run tests on them to be sure they would work properly. They work great when tested and will function perfectly when programed. The board looks great, the soldering is clean and the parts are all well mounted. I have no doubt that it will work as advertised when it's time to go on the job. ### ⭐⭐⭐⭐ Exactly what I needed *by C***N on June 11, 2026* I always find the Elegoo products to work as "advertised" . I can't recall ever having a quality problem. They are perfect for the small DIY smart home projects I buy them for. In this case the the relays are exactly what i need and perform as expected. ## Frequently Bought Together - ELEGOO 4 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 2560 DSP ARM PIC AVR STM32 - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - ELEGOO UNO R3 Board ATmega328P with USB Cable(Arduino-Compatible) for Arduino --- ## 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.fi/products/446482088-elegoo-4-channel-dc-5v-relay-module-with-optocoupler-arduino](https://www.desertcart.fi/products/446482088-elegoo-4-channel-dc-5v-relay-module-with-optocoupler-arduino) --- *Product available on Desertcart Finland* *Store origin: FI* *Last updated: 2026-09-30*