--- product_id: 438311285 title: "4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Trigger" brand: "aediko" price: "€ 16.10" currency: EUR in_stock: true reviews_count: 8 category: "Aediko" url: https://www.desertcart.de/products/438311285-4pcs-relay-module-dc-12v-relay-board-1-channel-optocoupler store_origin: DE region: Germany --- # 10A max load power High/Low level trigger Optocoupler isolation 4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Trigger **Brand:** aediko **Price:** € 16.10 **Availability:** βœ… In Stock ## Summary > πŸ”§ Power your projects with precision and protection β€” don’t get left behind! ## Quick Answers - **What is this?** 4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Trigger by aediko - **How much does it cost?** € 16.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/438311285-4pcs-relay-module-dc-12v-relay-board-1-channel-optocoupler) ## Best For - aediko enthusiasts ## Why This Product - Trusted aediko brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Versatile Compatibility:** Perfectly pairs with ARM, PIC, AVR, Raspberry Pi, CNC machines, and more for professional-grade automation. - β€’ **Robust 10A Load Capacity:** Handles up to 250V AC or 30V DC with ease, powering your projects without compromise. - β€’ **Flexible Triggering Modes:** Seamlessly switch between high or low level triggers via jumper settings to fit any control logic. - β€’ **Direct Screw Terminal Wiring:** Simplifies installation with clearly labeled NC, NO, and COM terminals for quick, secure connections. - β€’ **Optocoupler Isolation for Safety:** Protects your microcontroller and I/O ports from damaging relay currents with stable, fault-tolerant design. ## Overview The AEDIKO 4pcs 12V Relay Module features a single-channel relay with a 10A max load, optocoupler isolation for enhanced safety, and jumper-configurable high/low level triggers. Designed for fault tolerance and easy wiring via screw terminals, it supports a wide range of microcontrollers and industrial applications, making it a must-have for reliable, professional automation setups. ## Description AEDIKO 4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Trigger : desertcart.co.uk: DIY & Tools Review: Does the job perfectly - Good quality, you can choose high and low trigger voltage. Terminals could be a bit bigger. Well-packed, individually in antistatic bags. Review: Good value - These relays work well with both high and low level inputs. One thing that lets them down is the quality of the screw terminal blocks - I have seen better. ## Features - 12V Relay Module: Working Voltage: DC 12V; Maximum Load: AC 250V/10A, DC 30V/10A; Trigger Current of Opto-Isolator: 5mA - Fault-Tolerant Design: Fault Tolerant Design, Even if the Control Line is Broken, the Relay will not Operate;All Interfaces of Relay can be Wired Out Through the Terminals Directly,Normally Open and Normally Closed - Optocoupler Isolation:1 Channel Relay Board use Optocoupler Isolation that has Strong Driving Ability and Stable Performance ,The Isolation Circuit Prevent Damages to I / O Port by Relay Switch Current - Jumper Design: The Relay Module has a Jumper That You Can Set Rather the Unit State Changes with High or Low Signal. Has Screw Terminals for Relay (NC,C,NO) and for Input; Coil +, Coil - and Trigger - Wide Application: DC 12V Relay Module Works Well with ARM /PIC /AVR /MCU/Raspberry/CNC Machine/ PS4 etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09M6B8HC6 | | Best Sellers Rank | 1,358 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1 in Electromechanical Relays | | Brand | AEDIKO | | Coil Voltage | 12 Volts | | Connector Type | Screw | | Connector type | Screw | | Contact Current Rating | 10 Amps | | Contact Material | Nickel | | Contact Type | Normally Open | | Contact material | Nickel | | Contact type | Normally Open | | Country Of Origin | China | | Current Rating | 10 Amps | | Current rating | 10 Amps | | Customer Reviews | 4.3 out of 5 stars 145 Reviews | | Manufacturer | AEDIKO | | Maximum Switching Voltage | 12 Volts | | Minimum Switching Voltage | 12 Volts | | Mounting Type | Surface Mount | | Mounting type | Surface Mount | | Operation Mode | Automatic | | UPC | 701715501973 | ## Product Details - **Connector type:** Screw - **Contact material:** Nickel - **Contact type:** Normally Open - **Current rating:** 10 Amps - **Mounting type:** Surface Mount ## Images ![4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Trigger - Image 1](https://m.media-amazon.com/images/I/8104BAjBwuS.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does the job perfectly *by A***X on 21 February 2025* Good quality, you can choose high and low trigger voltage. Terminals could be a bit bigger. Well-packed, individually in antistatic bags. ### ⭐⭐⭐⭐⭐ Good value *by P***. on 25 December 2022* These relays work well with both high and low level inputs. One thing that lets them down is the quality of the screw terminal blocks - I have seen better. ### ⭐⭐⭐⭐ Works fine, but not isolated - useless optocoupler, apart from using the manufacturer's inventory. *by C***D on 15 March 2025* Works as expected, though, like for a lot of other modules coming from China, claiming optocoupler isolation is pure nonsense in the way it is designed. To have an isolated module, there shall be two completely separated connections points, at the LED side of the optocoupler, with no common ground to the supply. Other than this, the device can be designed very well without an optocoupler, being as "isolated" without the optocoupler, as it is with the optocoupler. This module is, of course, non isolated, but it does the job I need it for. ## Frequently Bought Together - AEDIKO 4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Trigger - 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 - Innfeeltech 3pcs DC 12V Relay Module 1 Channel Relay with Optocoupler High or Low Level Trigger Expansion Board --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.de/products/438311285-4pcs-relay-module-dc-12v-relay-board-1-channel-optocoupler](https://www.desertcart.de/products/438311285-4pcs-relay-module-dc-12v-relay-board-1-channel-optocoupler) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-04-23*