---
product_id: 4312309
title: "SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi"
brand: "sunfounder"
price: "56 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Sun Founder"
url: https://www.desertcart.pl/products/4312309-sunfounder-2-channel-dc-5v-relay-module-with-optocoupler-low
store_origin: PL
region: Poland
---

# 10A high-current relay LED status indicators 5V low-level trigger SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi

**Brand:** sunfounder
**Price:** 56 zł
**Availability:** ✅ In Stock

## Summary

> 🔧 Empower your projects with reliable relay control — don’t get left in the dark!

## Quick Answers

- **What is this?** SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi by sunfounder
- **How much does it cost?** 56 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/4312309-sunfounder-2-channel-dc-5v-relay-module-with-optocoupler-low)

## Best For

- sunfounder enthusiasts

## Why This Product

- Trusted sunfounder brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Robust Design:** Small footprint (50.5x38.5x18.5mm) with sturdy screw terminals for clean, secure wiring in any setup.
- • **Powerful 10A Relay Control:** Handles heavy loads up to AC250V/10A or DC30V/10A with ease, perfect for demanding automation projects.
- • **Safe Optocoupler Isolation:** Protect your microcontroller with built-in optocoupler isolation, ensuring noise-free and reliable switching.
- • **Intuitive LED Status Indicators:** Instant visual feedback on relay status keeps your project monitoring sleek and professional.
- • **Seamless Microcontroller Compatibility:** Plug-and-play with Arduino, Raspberry Pi, ARM, PIC, AVR, and more for versatile DIY innovation.

## Overview

The SunFounder 2 Channel DC 5V Relay Module is a compact, high-current switching board designed for seamless integration with popular microcontrollers like Arduino and Raspberry Pi. Featuring 10A relay capacity, optocoupler isolation for safety, and LED indicators for real-time status, it’s ideal for automation, DIY electronics, and prototyping. Its robust build and easy wiring make it a top choice for professionals and hobbyists aiming for reliable, noise-free control.

## Description

desertcart.com: SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics

Review: Reliable relay module, works as expected - I purchased this SunFounder 2-channel 5V relay module for a small electronics project, and it works exactly as advertised. The board is well built, clearly labeled, and easy to integrate with a microcontroller (Arduino/ESP-based setup). The optocoupler isolation is a nice safety feature and gives extra confidence when switching external loads. Both relays trigger cleanly at 5V, and I’ve had no issues with false switching or noise. Screw terminals are solid and make wiring straightforward. Overall, this is a reliable and beginner-friendly relay module that’s great for automation, DIY projects, or learning electronics. Good quality for the price — I would definitely buy it again.
Review: Great relay - The relay works very well with Arduino. Simple wiring and the relay is operating properly.

## Features

- 5V 2-Channel Relay interface board, and each one needs 15-20mA Driver Current
- Equiped with high-current relay, AC250V 10A ; DC30V 10A
- Standard interface that can be controlled directly by microcontroller (compatible with Arduino ,Raspberry Pi, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
- Indication LED's for Relay output status
- Size: 50.5mm(L) x 38.5mm(W) x 18.5mm(H)(1.99inch x 1.54inch x 0.73inch)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00E0NTPP4 |
| Best Sellers Rank | #110 in Single Board Computers (Computers & Accessories) |
| Brand | SunFounder |
| Brand Name | SunFounder |
| Coil Voltage | 5 Volts |
| Connector Type | Through Hole |
| Contact Current Rating | 10 Amps |
| Contact Material | Silver Alloy |
| Contact Type | Normally Open |
| Current Rating | 10 Amps |
| Customer Reviews | 4.6 out of 5 stars 1,276 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Included Components | 2 Channel Relay Module |
| Manufacturer | SunFounder |
| Maximum Switching Current | 10 Amps |
| Minimum Switching Voltage | 5 Volts (DC) |
| Model | 8541582329 |
| Mounting Type | PCB Mount |
| Operation Mode | Automatic |
| Part Number | 2C-5V |
| UPC | 520141421293 |
| Warranty Description | 1 Year Guarantee |

## Product Details

- **Brand:** SunFounder
- **Coil Voltage:** 5 Volts
- **Current Rating:** 10 Amps
- **Maximum Switching Current:** 10 Amps
- **UPC:** 520141421293

## Images

![SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi - Image 1](https://m.media-amazon.com/images/I/71oYyAoyO3L.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable relay module, works as expected
*by M***E on January 13, 2026*

I purchased this SunFounder 2-channel 5V relay module for a small electronics project, and it works exactly as advertised. The board is well built, clearly labeled, and easy to integrate with a microcontroller (Arduino/ESP-based setup). The optocoupler isolation is a nice safety feature and gives extra confidence when switching external loads. Both relays trigger cleanly at 5V, and I’ve had no issues with false switching or noise. Screw terminals are solid and make wiring straightforward. Overall, this is a reliable and beginner-friendly relay module that’s great for automation, DIY projects, or learning electronics. Good quality for the price — I would definitely buy it again.

### ⭐⭐⭐⭐⭐ Great relay
*by B***B on December 26, 2025*

The relay works very well with Arduino. Simple wiring and the relay is operating properly.

### ⭐⭐⭐⭐⭐ Great Product - Well built and rugged - Does the Job!
*by M***S on March 18, 2017*

SunFounder 5V Relay Shield Module for Arduino UNO 2560 1280 ARM PIC AVR STM32 (4Channel) I am extremely happy with this board. It works flawlessly with the Arduino. It is responsive and VERY easy to use. Remember though, that its logic is Active Low, so when power is first applied from the Arduino, the low state of the pins causes the relay to turn on until the Arduino has time to set them to active high, thereby turning them off. I solved this problem using a 2N2222 transistor and a 1k Ohm resistor between an Arduino pin and the 5 volt input to the relay. Now, when the Arduino powers on, there is NO power to the relay board UNTIL the program tells it to do so. GREAT PRODUCT - HIGHLY RECOMMENDED!

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-23*