5V 4-Channel Relay Module Board

The 5V 4-Channel Relay Module Board is an essential building block for projects involving multiple device control via Arduino, ESP32, or Raspberry Pi. It allows you to switch four independent high-voltage devices with ease while maintaining complete isolation between your control system and the high-power loads.

Designed for DIY electronics, home automation, and industrial automation, this relay board features optocoupler isolation for each relay, ensuring protection against voltage surges and guaranteeing the safety of your low-voltage microcontroller.

Using a simple 5V DC signal, you can drive heavy loads safely, making it perfect for applications like smart home setups, robotics, and IoT devices. If you need a compatible adapter, explore our ElectroWay Power Adapters collection.

🔧 Technical Specifications:

• Control Voltage (Input): 5V DC

• Load Voltage (Output): Up to 250V AC or 30V DC

• Load Current: 10A per relay

• Relay Channels: 4 independent relays

• Trigger Type: Active low

• Protection: Optocoupler isolation

• Indicators: Individual LED indicators for relay activity

• Terminals: Secure screw terminals for connections

• PCB Size: Compact design with mounting holes

• Weight: Lightweight and easy to integrate

This relay module offers reliable switching and is suitable for both beginner-level and professional projects involving Arduino Uno, Arduino Mega, ESP32, and Raspberry Pi.

🛠️ Common Usage Scenarios:

✅ Smart Home Automation:
Switch lights, fans, door locks, or home appliances remotely using a microcontroller platform like ESP32 or Arduino.

✅ DIY Electronics Projects:
Control motors, solenoids, and other devices in projects built on Arduino Nano, Raspberry Pi Pico, or NodeMCU setups.

✅ Industrial Automation Systems:
Manage small industrial machinery, alarms, and automation systems using robust relay switching integrated with control logic.

✅ IoT Projects:
Connect your relay outputs to an IoT cloud platform using devices like ESP32, enabling remote monitoring and smart control.

The 5V 4-Channel Relay Module Board ensures that automation becomes safer, smarter, and more efficient for any electronics enthusiast or professional developer.

⚠️ Precautions & Usage Tips:

✅ Current Capacity: Ensure each device connected does not exceed the 10A load per relay to prevent overheating or damage.
✅ Secure Wiring: Always tighten connections properly and insulate AC loads to prevent accidents.
✅ Separate Power Source: If driving high-current loads, use a separate 5V power supply to support relay operations without affecting your Arduino or ESP32 performance.
✅ Test Before Use: Test relay operation using low-power loads before connecting real equipment.
✅ Ventilation: Ensure airflow around the board if used in enclosed spaces with multiple relays active simultaneously.

🔗 Helpful Links & Related Products:

• ElectroWay Tools & Accessories

• Arduino Relay Modules

• Home Automation Components

• Arduino Starter Kit

📺 External Video Resource:
How to Control Home Appliances with a Relay Module and Arduino

📍 Available Now in Johar Town, Lahore
Buy authentic components from ElectroWay, Johar Town, Lahore, and enjoy fast nationwide delivery, expert consultation, and guaranteed quality.