Best Four-Relay Output Boards

Looking for the best four-relay output boards to enhance your electronic projects? We’ve compiled a list of 10 top options that are user-friendly, reliable, and ready to elevate your creations with precise control.

Ready to take control of your electronic projects? We’ve explored some fantastic four-relay output boards that can simplify your setups and boost your creations. These boards are designed to be user-friendly and highly effective.

Discover the power of precise control with our curated list. You’ll find options that are easy to connect and super reliable. Get ready to elevate your projects to a whole new level of functionality.

List of Top 10 Four-Relay Output Boards

Image Title Best For Price
AEDIKO 2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger AEDIKO 2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger

This 4-channel relay module is perfect for DIYers, engineers, or hobbyists needing to control high-power devices safely. Its optocoupler isolation ensures stable triggering with high or low signals, while handling loads up to 10A. Designed for easy microcontroller compatibility and durable mounting via screw terminals and fixed bolt holes.

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ANMBEST 2PCS 4 Channel 5V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino ANMBEST 2PCS 4 Channel 5V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino

This 4 Channel 5V Relay Module is perfect for hobbyists and makers who want to control higher-power devices with their Arduino or Raspberry Pi. It’s ideal for projects needing reliable switching and easy integration.

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GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24) GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)

This GUETNEU Relay Board is perfect for anyone working with PLCs, microprocessors, or time relays who needs to safely amplify control currents and protect sensitive systems. Its easy DIN rail mounting and clear labeling make it a breeze to install and use, even in tight spaces.

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4-Channel 24V Relay Module Board with Optocoupler Isolation, Supports High/Low Level Triggers for Arduino Projects - Reliable Expansion Shield 4-Channel 24V Relay Module Board with Optocoupler Isolation, Supports High/Low Level Triggers for Arduino Projects – Reliable Expansion Shield

This 4-Channel 24V Relay Module Board is perfect for DIY enthusiasts, hobbyists, and professionals working on Arduino projects or automation systems. It’s ideal for anyone needing reliable, safe, and flexible control in their projects.

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Hosyond 4Pack 4 Channel DC 5V Relay Module with Optocoupler Relay Board for Arduino Raspberry Pi MEGA2560 Hosyond 4Pack 4 Channel DC 5V Relay Module with Optocoupler Relay Board for Arduino Raspberry Pi MEGA2560

This product is perfect for hobbyists, DIY electronics enthusiasts, and makers working with Arduino, Raspberry Pi, or similar platforms. It’s ideal for controlling high-current appliances like lights, motors, or pumps in smart home automation, industrial equipment, or robotics projects. The plug-and-play design with included wires makes setup quick and hassle-free.

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DIANN 30A 4 Channel Relay Module 12V Relay Module Expansion Board High Low Level Trigger with with Optocoupler Isolation for PLC Automation Equipment Control Industrial Control DIANN 30A 4 Channel Relay Module 12V Relay Module Expansion Board High Low Level Trigger with with Optocoupler Isolation for PLC Automation Equipment Control Industrial Control

This product is perfect for industrial professionals and electronics hobbyists. It suits automation systems, PLC setups, and IoT devices with 30A load capacity, optocoupler isolation for safety, and terminal blocks for quick wiring.

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SunFounder Lab 4 Relay Module 5V 4 Channels Relay Module Compatible with Arduino R3 1280 Arm PIC AVR STM32 SunFounder Lab 4 Relay Module 5V 4 Channels Relay Module Compatible with Arduino R3 1280 Arm PIC AVR STM32

This SunFounder Lab 4 Relay Module is perfect for hobbyists, students, and makers who want to control high-current devices with their Arduino or other microcontrollers. It’s easy to use and great for learning about relays and electronics.

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ELEGOO 4 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 2560 DSP ARM PIC AVR STM32 ELEGOO 4 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 2560 DSP ARM PIC AVR STM32

This relay module is perfect for electronics hobbyists and DIY enthusiasts building smart home projects or industrial automation systems. It handles AC250V 10A or DC30V 10A loads safely with optocoupler isolation, works seamlessly with Arduino, AVR, PIC, and other microcontroller-compatible setups, and features status indicator lights for easy monitoring.

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JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM

This JBtek 4 Channel DC 5V Relay Module is perfect for hobbyists and makers looking to add powerful control to their Arduino, Raspberry Pi, or other microcontroller projects. It’s ideal for anyone who wants to easily manage high-current devices in their smart home or industrial applications.

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DieseRC 4 Channels WiFi Smart Switch, DC 5V 12V 24V 36V Passive Output Relay Module Ewelink APP WiFi Control Compatible with Alexa/Google Home, Inching/Self-Locking Switch DieseRC 4 Channels WiFi Smart Switch, DC 5V 12V 24V 36V Passive Output Relay Module Ewelink APP WiFi Control Compatible with Alexa/Google Home, Inching/Self-Locking Switch

This smart switch is perfect for anyone who wants easy, remote control over their devices, whether it’s for home automation, DIY projects, or managing appliances in farms and factories. It’s designed for simplicity and flexibility, allowing you to control up to four devices independently using your phone or voice commands.

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Detailed Reviews

Looking for reliable four-relay boards? We’ve handpicked the top 10 expert-tested options to suit every need. Each module boasts safety-first design with optocoupler isolation, high/low trigger flexibility, and robust load-handling for smart homes or industrial setups. From Arduino-friendly 5V relays to heavy-duty 30A boards, these picks blend ease of use with rock-solid performance. Ready to find your perfect match? Dive in and simplify your automation goals!

1. AEDIKO 2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger

AEDIKO 2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger

This AEDIKO 4 Channel Relay Module is a versatile tool for your projects. It allows you to control up to four devices with ease. You can set it to trigger with a high or low level signal, making it super flexible.

Each relay is isolated for safety and reliability. This 12V module can handle heavy loads, perfect for a wide range of applications.

Pros Cons
  • Supports high/low level trigger for flexible control options.
  • Each relay operates independently with opto-isolation ensuring safety.
  • Handles high-current loads up to AC 250V 10A.
  • Fault-tolerant design keeps relays stable during control line failures.
  • Screw terminals and microcontroller compatibility simplify setup and control.
  • Microcontroller Requires 5mA Output for Triggering Compatibility
  • Bulkier 67×44.5mm Design Fits Poorly in Compact Projects
  • DC Voltage Limited to 30V Max Restricts High-Power Needs

Perfect For:

This 4-channel relay module is perfect for DIYers, engineers, or hobbyists needing to control high-power devices safely. Its optocoupler isolation ensures stable triggering with high or low signals, while handling loads up to 10A. Designed for easy microcontroller compatibility and durable mounting via screw terminals and fixed bolt holes.

Ready to Purchase?

2. ANMBEST 2PCS 4 Channel 5V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino

ANMBEST 2PCS 4 Channel 5V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino

Take control of your projects with the ANMBEST 4 Channel Relay Module! This versatile board is perfect for your Arduino or Raspberry Pi. It offers easy integration and reliable performance.

It handles big loads, up to 250V AC and 30V DC. This means you can power a wide range of devices with confidence.

Installation is a breeze. Its fault-tolerant design ensures stability. Get started on your next big idea today!

Pros Cons
  • 4-channel 5V relay with individual control for each relay.
  • High-current relays handle up to 10A AC/DC loads easily.
  • Optical isolation boosts safety and signal stability.
  • Jumper-selectable trigger for high or low level input.
  • Screw terminals & mounting holes simplify installation.
  • Bulky design may not fit compact setups
  • Requires screwdriver for terminal installation
  • Jumper adjustment needed for trigger logic setup

Perfect For:

This 4 Channel 5V Relay Module is perfect for hobbyists and makers who want to control higher-power devices with their Arduino or Raspberry Pi. It’s ideal for projects needing reliable switching and easy integration.

Ready to Purchase?

3. GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)

GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)

Boost your control systems with the GUETNEU Relay Board! This 4-channel relay module is your reliable interface, designed to amplify output loads and safeguard your valuable control systems.

It’s a 24V DC/AC powerhouse. This board handles 10A at 250VAC/30VDC. Installation is a breeze with DIN rail mounting.

LED indicators show you exactly what’s happening. It’s built with over-voltage protection for your peace of mind. Get yours and simplify your setup today!

Pros Cons
  • Boosts your control system’s power.
  • Simple DIN rail mounting.
  • Clear labels and LED indicators.
  • Built-in safety protections.
  • Limited to 24V DC/AC power.
  • Single Pole Double Throw (SPDT) relays only.
  • No advanced communication features.

Perfect For:

This GUETNEU Relay Board is perfect for anyone working with PLCs, microprocessors, or time relays who needs to safely amplify control currents and protect sensitive systems. Its easy DIN rail mounting and clear labeling make it a breeze to install and use, even in tight spaces.

Ready to Purchase?

4. 4-Channel 24V Relay Module Board with Optocoupler Isolation, Supports High/Low Level Triggers for Arduino Projects – Reliable Expansion Shield

4-Channel 24V Relay Module Board with Optocoupler Isolation, Supports High/Low Level Triggers for Arduino Projects - Reliable Expansion Shield

The 4-Channel 24V Relay Module is perfect for your projects. It uses high-quality relays for stable and reliable performance. This module works well in both hobby and professional settings.

It features optocoupler isolation for better safety. This design protects your circuits from interference. You can easily switch between high and low trigger levels for flexible control.

Wiring is simple with clear indicator lights. This module adapts to many different applications and needs.

Pros Cons
  • Reliable performance with high-quality relays.
  • Enhanced safety through optocoupler isolation.
  • Flexible control with high/low trigger modes.
  • Easy setup with dual indicator lights.
  • Adaptable to various voltage and output needs.
  • Limited to 24V operation, not for higher voltages.
  • Requires external power for the relay coil.
  • Basic functionality, may lack advanced features.

Perfect For:

This 4-Channel 24V Relay Module Board is perfect for DIY enthusiasts, hobbyists, and professionals working on Arduino projects or automation systems. It’s ideal for anyone needing reliable, safe, and flexible control in their projects.

Ready to Purchase?

5. Hosyond 4Pack 4 Channel DC 5V Relay Module with Optocoupler Relay Board for Arduino Raspberry Pi MEGA2560

Hosyond 4Pack 4 Channel DC 5V Relay Module with Optocoupler Relay Board for Arduino Raspberry Pi MEGA2560

The Hosyond 4Pack 4 Channel DC 5V Relay Module is a great tool for controlling devices. It works with Arduino, Raspberry Pi, and other microcontrollers. This relay can handle high-current loads easily.

This module has a standard interface for easy connections. It supports both high-level and low-level triggers, making it very versatile.

You can use this relay module in many applications, like smart homes and industrial controls. It allows you to control various electrical devices safely. This product comes with 10pin male to female DuPont wires for convenience.

Pros Cons
  • 4-channel relay module for easy microcontroller connections.
  • High and low-level triggers for flexible control.
  • Directly controls Arduino, Raspberry Pi, and high-current devices.
  • Widely used in MCU, industrial, and smart home projects.
  • No built-in protection against voltage spikes or reverse polarity.
  • Requires external power source for relay operation.
  • Limited to 4 channels, may not suit larger projects.

Perfect For:

This product is perfect for hobbyists, DIY electronics enthusiasts, and makers working with Arduino, Raspberry Pi, or similar platforms. It’s ideal for controlling high-current appliances like lights, motors, or pumps in smart home automation, industrial equipment, or robotics projects. The plug-and-play design with included wires makes setup quick and hassle-free.

Ready to Purchase?

6. DIANN 30A 4 Channel Relay Module 12V Relay Module Expansion Board High Low Level Trigger with with Optocoupler Isolation for PLC Automation Equipment Control Industrial Control

DIANN 30A 4 Channel Relay Module 12V Relay Module Expansion Board High Low Level Trigger with with Optocoupler Isolation for PLC Automation Equipment Control Industrial Control

The DIANN 30A 4 Channel Relay Module is a powerful tool for controlling various devices. It supports a load voltage of DC 30V or AC 250V at 30A. This module operates on a DC 12V power supply, ensuring consistent performance.

This relay module features optocoupler isolation for safe operation and comes with LED indicators to show the status of each channel. It is designed for easy setup, allowing users to switch between high or low-level triggering. All connections can be made quickly using terminal blocks.

Perfect for PLC automation, industrial control, and DIY projects, this relay module meets the needs of both professionals and hobbyists. It is a reliable choice for controlling various electronic systems.

Pros Cons
  • Powerful 30A load capacity.
  • Easy high/low level trigger.
  • Clear LED indicators for status.
  • Simple wiring with terminal blocks.
  • Versatile for many applications.
  • Requires 12V DC power supply only (limited voltage compatibility)
  • 5mA trigger current may not suit all devices

Perfect For:

This product is perfect for industrial professionals and electronics hobbyists. It suits automation systems, PLC setups, and IoT devices with 30A load capacity, optocoupler isolation for safety, and terminal blocks for quick wiring.

Ready to Purchase?

7. SunFounder Lab 4 Relay Module 5V 4 Channels Relay Module Compatible with Arduino R3 1280 Arm PIC AVR STM32

SunFounder Lab 4 Relay Module 5V 4 Channels Relay Module Compatible with Arduino R3 1280 Arm PIC AVR STM32

Unlock powerful control with the SunFounder Lab 4 Relay Module! This versatile 5V, 4-channel board lets you manage high-current devices with ease.

It’s perfect for Arduino R3, 1280, Arm, PIC, AVR, and STM32 projects. Each channel needs just 15-20mA of driver current.

This reliable relay module is designed for users aged 14 and up. Get ready to supercharge your creations with SUNFOUNDER!

Pros Cons
  • 4-channel design enables multiple device control
  • 5V operation suits Arduino, ARM, and STM32
  • Low driver current (15-20mA) for microcontroller compatibility
  • Relay module handles high-current appliances safely
  • SunFounder brand ensures trusted quality and durability
  • Limited power handling for high-current devices
  • May generate heat without heatsink
  • Not user-friendly for beginners or younger users

Perfect For:

This SunFounder Lab 4 Relay Module is perfect for hobbyists, students, and makers who want to control high-current devices with their Arduino or other microcontrollers. It’s easy to use and great for learning about relays and electronics.

Ready to Purchase?

8. ELEGOO 4 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 2560 DSP ARM PIC AVR STM32

ELEGOO 4 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 2560 DSP ARM PIC AVR STM32

The ELEGOO 4 Channel DC 5V Relay Module is a useful tool for controlling devices. It works with popular microcontrollers like Arduino, AVR, and PIC.

This relay module has a maximum contact of AC250V 10A and DC30V 10A. It features an indicator light to show the working status, making it safer to use.

This module is great for both home and industrial use. It can control many appliances easily. Enjoy more control with this handy device!

Pros Cons
  • Works with Arduino, AVR, PIC, ARM
  • Controls 4 devices at once
  • Safe use with status indicator lights
  • Handles up to 10A AC/DC loads
  • Great for home automation, industrial projects
  • No built-in protection against reverse polarity or overcurrent.
  • Requires external power supply for relay operation.
  • Limited to 5V systems, not compatible with 3.3V microcontrollers.

Perfect For:

This relay module is perfect for electronics hobbyists and DIY enthusiasts building smart home projects or industrial automation systems. It handles AC250V 10A or DC30V 10A loads safely with optocoupler isolation, works seamlessly with Arduino, AVR, PIC, and other microcontroller-compatible setups, and features status indicator lights for easy monitoring.

Ready to Purchase?

9. JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM

JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM

Unleash the power of your Arduino and Raspberry Pi projects with the JBtek 4 Channel DC 5V Relay Module! This versatile board lets you effortlessly control a wide range of appliances and equipment. Get ready to automate your world with ease.

It handles big power. Control AC and DC devices. Simple to connect.

Perfect for MCU control, the industrial field, and smart home automation, this module features LED indicators so you always know the relay status. Take your projects to the next level!

Pros Cons
  • 4-Channel Design lets you control four devices at once.
  • High-current relays handle 10A appliances (AC/DC).
  • LED indicators show real-time relay status clearly.
  • Works with all MCUs like Arduino and Raspberry Pi.
  • Perfect for smart homes and industrial equipment control.
  • High power consumption for small projects.
  • No built-in protection against overcurrent.
  • Requires extra wiring for setup.

Perfect For:

This JBtek 4 Channel DC 5V Relay Module is perfect for hobbyists and makers looking to add powerful control to their Arduino, Raspberry Pi, or other microcontroller projects. It’s ideal for anyone who wants to easily manage high-current devices in their smart home or industrial applications.

Ready to Purchase?

10. DieseRC 4 Channels WiFi Smart Switch, DC 5V 12V 24V 36V Passive Output Relay Module Ewelink APP WiFi Control Compatible with Alexa/Google Home, Inching/Self-Locking Switch

DieseRC 4 Channels WiFi Smart Switch, DC 5V 12V 24V 36V Passive Output Relay Module Ewelink APP WiFi Control Compatible with Alexa/Google Home, Inching/Self-Locking Switch

DieseRC 4 Channels WiFi Smart Switch lets you control devices remotely using the eWelink app. It works with Alexa and Google Home for voice commands, and connects via 2.4GHz WiFi for stable performance.

This smart switch has four independent relays. Each can handle up to 10A. It supports DC 5V to 48V, making it flexible for many devices.

Install it in homes, factories, or offices for easy automation. The small size fits in electrical boxes, and it pairs with Bluetooth remotes (not included). Control lights, locks, or machines from your phone, anytime.

Pros Cons
  • Reliable 2.4GHz WiFi with global remote control
  • Works with eWelink app, Alexa, Google Home
  • Adjustable inching/toggle modes for flexible use
  • Supports DC 5V-48V with 4 independent relays
  • Compact design fits standard electrical boxes
  • Not compatible with AC voltage systems
  • Complex wiring setup for beginners
  • Bluetooth remote sold separately

Perfect For:

This smart switch is perfect for anyone who wants easy, remote control over their devices, whether it’s for home automation, DIY projects, or managing appliances in farms and factories. It’s designed for simplicity and flexibility, allowing you to control up to four devices independently using your phone or voice commands.

Ready to Purchase?

Buying Guide

Four-relay output boards are great for controlling multiple devices in your projects. They make setups simpler and more efficient. Choosing the right one can boost your creations.

Factors to Consider When Buying:

  • Voltage Compatibility: Ensure the board matches your power supply. Common options are 5V, 12V, and 24V.
  • Trigger Type: Look for high/low level triggers for flexibility in controlling devices.
  • Load Capacity: Check if it handles your device’s power needs, like AC 250V or DC 30V.
  • Isolation: Optocoupler isolation protects your circuits from interference and ensures safety.
  • Ease of Installation: Choose boards with DIN rail mounting or clear wiring for hassle-free setup.
  • Indicator Lights: LED indicators help you monitor relay status easily.
  • Compatibility: Ensure it works with your microcontrollers, like Arduino or Raspberry Pi.
  • Protection Features: Look for over-voltage protection to safeguard your system.
  • Application: Pick a board suited for your needs, whether smart homes, industrial control, or DIY projects.