--- product_id: 495051414 title: "5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board" brand: "jessinie" price: "£10.87" currency: GBP in_stock: true reviews_count: 9 category: "Jessinie" url: https://www.desertcart.co.uk/products/495051414-5pcs-1-channel-dc-3v-3-3v-power-relay-module store_origin: GB region: United Kingdom --- # 10A high current capacity Optocoupler isolation for interference protection Rotary crimping terminal for secure connections 5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board **Brand:** jessinie **Price:** £10.87 **Availability:** ✅ In Stock ## Summary > ⚡ Control your smart projects with precision and power! ## Quick Answers - **What is this?** 5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board by jessinie - **How much does it cost?** £10.87 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/495051414-5pcs-1-channel-dc-3v-3-3v-power-relay-module) ## Best For - jessinie enthusiasts ## Why This Product - Trusted jessinie brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Rated for 100,000+ continuous relay cycles with diode protection - • **Interference Immunity:** Photoelectric isolation ensures rock-solid signal integrity - • **Installation Made Easy:** Secure screw mounts and rotary terminals for hassle-free setup - • **Powerhouse Performance:** Handles up to 10A at 250VAC/30VDC for robust device control - • **Plug & Play Compatibility:** Directly interfaces with 3.3V microcontrollers like ESP32 & Raspberry Pi ## Overview The JESSINIE 5Pcs 1 Channel DC 3V/3.3V Power Relay Module is a high-reliability control board designed for seamless integration with low-voltage microcontrollers. Featuring a 10A switching capacity at 250VAC/30VDC, optocoupler isolation for enhanced noise immunity, and durable rotary crimping terminals, this module supports over 100,000 relay cycles. Ideal for smart home automation and industrial projects, it offers easy installation and dependable performance. ## Description Product description We delivering products that are designed to elevate your projects to the next level. Whether you are a hardware engineer,hobbyist, student, or professional. Our development boards and components are here to help. Welcome to JESSINIE, for development boards and electronic components. At JESSINIE, we providing a wide range of development board modules, displays, sensors, electronics, power accessories, and DIP sockets to meet your project needs. At JESSINIE, We focus on the importance of reliable and efficient products, we prioritize quality and performance in everything we offer. Choose JESSINIE for your development board and electronic components needs. Thank you for choosing JESSINIE. Indicator with output signal The signal input port can be connected to the IO port of the single chip microcomputer, and the high-level signal is driven Dual power supply selection design has strong anti-interference ability and high reliability of photoelectric isolation protection Onboard 3V,10A/250VAC; 10A/30V DC relay, which can be continuously closed for 100,000 times, with diode laxative protection, short response time The external connection adopts rotary crimping terminal to make the connection firmer, With fixed mounting holes for easy installation The 3V relay isolation drive control module, the core is the electronic control device relay, which has a control system (also known as the input loop) and a controlled system (also known as the output loop). The essence is an automatic switch that uses a smaller current to control a larger current ". Used to control 10A 250VAC and 10A 30VDC loads, with output signal indicator prompts. Dual power supply selection design is adopted to enhance anti-interference ability. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit. Review: Good for 3v io systems like raspberry pi pico - Wish Id bought the 10 pack. Worked as described, triggered by a raspberry pi pico gpio and a separate 3.5v power supply for the relay module Vcc. Review: 3.3v works great with D1 Mini - Used for a project with ESP8266 D1 Mini. Works great with 3.3v trigger ## Features - Indicator with output signal - The signal input port can be connected to the IO port of the single chip microcomputer, and the high-level signal is driven - Dual power supply selection design has strong anti-interference ability and high reliability of photoelectric isolation protection - Onboard 3V,10A/250VAC; 10A/30V DC relay, which can be continuously closed for 100,000 times, with diode laxative protection, short response time - The external connection adopts rotary crimping terminal to make the connection firmer, With fixed mounting holes for easy installation ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BG2F7349 | | Best Sellers Rank | #34,031 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #14 in Electromechanical Relays | | Brand | JESSINIE | | Brand Name | JESSINIE | | Coil Voltage | 3 Volts (DC) | | Connector Type | Rotary Crimping Terminal | | Contact Current Rating | 10 Amps | | Contact Material | Silver Alloy | | Contact Type | Normally Open | | Current Rating | 10 Amps | | Customer Reviews | 4.4 out of 5 stars 39 Reviews | | Manufacturer | JESSINIE | | Maximum Switching Current | 10 Amps | | Maximum Switching Voltage | 250 Volts | | Minimum Switching Voltage | 250 Volts | | Mounting Type | Screw Mount | | Number of Terminals | 2 | | Operation Mode | Automatic | | Part Number | 73791-A | | Wattage | 2500 watts | ## Product Details - **Connector Type:** Rotary Crimping Terminal - **Contact Material:** Silver Alloy - **Contact Type:** Normally Open - **Current Rating:** 10 Amps - **Mounting Type:** Screw Mount ## Images ![5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board - Image 1](https://m.media-amazon.com/images/I/61dn-t4ztOL.jpg) ![5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board - Image 2](https://m.media-amazon.com/images/I/41JvVXMHMML.jpg) ![5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board - Image 3](https://m.media-amazon.com/images/I/41t5LFXvgUL.jpg) ![5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board - Image 4](https://m.media-amazon.com/images/I/41Tzoin-pkL.jpg) ![5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board - Image 5](https://m.media-amazon.com/images/I/31AM6CPGeeL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good for 3v io systems like raspberry pi pico *by G***Y on April 26, 2026* Wish Id bought the 10 pack. Worked as described, triggered by a raspberry pi pico gpio and a separate 3.5v power supply for the relay module Vcc. ### ⭐⭐⭐⭐⭐ 3.3v works great with D1 Mini *by D***Y on April 12, 2026* Used for a project with ESP8266 D1 Mini. Works great with 3.3v trigger ### ⭐⭐⭐⭐ Here's a schematic and photo *by F***S on February 26, 2026* Here's the KiCad schematic I made. It's a nice little board, works great driven from my 8266 ESP-12E dev board output pin, and using the 3.3v output pin for the VCC input. The vendor really should have supplied a schematic for folks! ## Frequently Bought Together - JESSINIE 5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board - 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 - AEDIKO 4pcs DC 5V Relay Module 1 Channel Relay Switch Relay Board with Optocoupler Isolation Support High or Low Level Trigger --- ## 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/495051414-5pcs-1-channel-dc-3v-3-3v-power-relay-module](https://www.desertcart.co.uk/products/495051414-5pcs-1-channel-dc-3v-3-3v-power-relay-module) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-19*