--- product_id: 429235403 title: "4pcs Relay Module DC 5V 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger" brand: "aediko" price: "£9.26" currency: GBP in_stock: true reviews_count: 8 category: "Aediko" url: https://www.desertcart.co.uk/products/429235403-4pcs-relay-module-dc-5v-1-channel-relay-board-optocoupler store_origin: GB region: United Kingdom --- # 5V DC working voltage Supports AC 250V/10A & DC 30V/10A load Optocoupler isolation for stable, safe switching 4pcs Relay Module DC 5V 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger **Brand:** aediko **Price:** £9.26 **Availability:** ✅ In Stock ## Summary > 🔗 Connect with confidence — power your projects like a pro! ## Quick Answers - **What is this?** 4pcs Relay Module DC 5V 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger by aediko - **How much does it cost?** £9.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/429235403-4pcs-relay-module-dc-5v-1-channel-relay-board-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 - • **Robust Isolation:** Optocoupler isolation protects your microcontroller from damaging current spikes. - • **Fail-Safe Reliability:** Fault-tolerant design ensures your relay stays off even if control lines break—no surprises. - • **Plug & Play Flexibility:** Jumper-configurable high/low level trigger adapts seamlessly to your control logic. - • **Universal Compatibility:** Works flawlessly with ARM, PIC, AVR, Raspberry Pi, CNC machines, and more—future-proof your setup. - • **Power-Packed Performance:** Handles high loads up to 10A AC/DC with ease, perfect for demanding projects. ## Overview The AEDIKO 4pcs 5V 1 Channel Relay Module features optocoupler isolation for stable switching and protection, supports high load capacities (AC 250V/10A, DC 30V/10A), and offers jumper-configurable trigger levels. Designed for fault tolerance and broad compatibility with popular microcontrollers and automation systems, it’s an essential upgrade for reliable, professional-grade DIY electronics and automation projects. ## Description Product Description DC 5V Relay Module Specifications Channel: 1 Channel Working Voltage: DC 5V Action Time (Under Rated Voltage): Less Than 10ms Release Time (Under Rated Voltage): Less Than 5ms Normally Opened Compatible Load: 10A 250VAC / 15A 125VAC / 10A 30VDC Features Trigger Current: 2 - 5mA Trigger Voltage(LOW): 0 - 4V Trigger Voltage(HIGH): 4.5 - 12V Insulation Resistance: 100MΩ (500VDC) Power Indicator (Green), Relay Status Indicator (Red) User Friendly Interface Design. All Interfaces Can Be Connected Via Terminal Wiring Leads Directly Output Interface Normally Opened (NO) : Normally Open Pin of Relay. NO Pin is Not Connect to COM Pin When Relay Off. NO Pin is Connect to COM Pin When Relay On Common Pin (COM) : Common Pin of the Relay Normally Closed (NC) : Normally Close Pin of Relay. NC Pin is Connect to COM Pin When Relay Off. NC Pin is Not Connect to COM Pin When Relay On Input Interface DC+: Connect to Power Positive (According to the Relay Voltage Range) DC-: Connect to Power Negative IN: Relay Module Trigger Pin (High or Low Level Trigger Optional) High or Low Level Trigger Select 1. Use High Level Trigger When ¡°IN¡± input High Level Signal, the ¡°NO¡± connect with ¡±COM¡± When ¡°IN¡± input Low Level Signal, the ¡°NC¡± connect with ¡°COM¡± 2. Use Low Level Trigger When ¡°IN¡± input Low Level Signal, the ¡°NO¡± connect with ¡±COM¡± When ¡°IN¡± input High Level Signal, the ¡°NC Package Contents 4x 1 Channel 5V Relay Module with Optocoupler Support High/Low Level Trigger Review: Does exactly what I want it to do - Bought the board to add to an arduino nano GRBL board for my CNC plasma machine… it works what more could you ask for.. Review: Useful but 4 is too many. - Useful but 4 is too many. ## Features - 5V Relay Module: Working Voltage: DC 5V; 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 5V Relay Module Works Well with ARM /PIC /AVR /MCU/Raspberry/CNC Machine/ PS4 etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09M62VCGX | | Best Sellers Rank | 1,855 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1 in Electromechanical Relays | | Brand | AEDIKO | | Coil Voltage | 5 Volts | | Connector Type | Screw | | Connector type | Screw | | Contact Current Rating | 10 Amps | | Contact Material | Silver Alloy | | Contact Type | Normally Closed | | Contact material | Silver Alloy | | Contact type | Normally Closed | | Country Of Origin | China | | Current Rating | 10 Amps | | Current rating | 10 Amps | | Customer Reviews | 4.2 out of 5 stars 54 Reviews | | Manufacturer | AEDIKO | | Manufacturer Part Number | AE001EU | | Maximum Switching Voltage | 5 Volts | | Minimum Switching Voltage | 5 Volts (DC) | | Mounting Type | Board Mount | | Mounting type | Board Mount | | Operation Mode | Automatic | | UPC | 701715501980 | | Wattage | 25 Milliwatts | ## Product Details - **Connector type:** Screw - **Contact material:** Silver Alloy - **Contact type:** Normally Closed - **Current rating:** 10 Amps - **Mounting type:** Board Mount ## Images ![4pcs Relay Module DC 5V 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger - Image 1](https://m.media-amazon.com/images/I/81D1g8BvTrS.jpg) ![4pcs Relay Module DC 5V 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger - Image 2](https://m.media-amazon.com/images/I/71jsn79lsoL.jpg) ![4pcs Relay Module DC 5V 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger - Image 3](https://m.media-amazon.com/images/I/610rYnrDTdL.jpg) ![4pcs Relay Module DC 5V 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger - Image 4](https://m.media-amazon.com/images/I/71pjpMneBsL.jpg) ![4pcs Relay Module DC 5V 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger - Image 5](https://m.media-amazon.com/images/I/71iVkfWGcAL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does exactly what I want it to do *by D***S on 3 April 2024* Bought the board to add to an arduino nano GRBL board for my CNC plasma machine… it works what more could you ask for.. ### ⭐⭐⭐⭐ Useful but 4 is too many. *by K***T on 4 October 2025* Useful but 4 is too many. ### ⭐⭐⭐⭐ Loses one star as the terminal blocks are fiddly *by I***T on 19 May 2023* The terminal blocks have a weird flap on and is can be really difficult to get even a thin wire in. Not sure why they couldn't just make them normal plain screws. That said, they work fine and have choice of NC/NO like every other relay in the world. I was activating these 5v relays using 5v from an arduino or using 3xAAA batteries. No problems either way. Bought from amazon as I needed them the next day and couldn't wait 38 days to get them delivered from you know who. ## Frequently Bought Together - AEDIKO 4pcs Relay Module DC 5V 1 Channel Relay Board 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 --- ## 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.co.uk/products/429235403-4pcs-relay-module-dc-5v-1-channel-relay-board-optocoupler](https://www.desertcart.co.uk/products/429235403-4pcs-relay-module-dc-5v-1-channel-relay-board-optocoupler) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-07*