8 Channel 5V Relay Board

Looking to buy 8 Channel 5V Relay Board at the best price in India? Tech Depot India offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.

Control up to 8 high-power devices independently using your Arduino, Raspberry Pi, ESP32, or any microcontroller with this robust 8 Channel 5V Relay Module. Ideal for home automation, industrial switching, and IoT projects, this board features optocoupler isolation for safe, reliable operation.

Specifications

Why Choose 8 Channel 5V Relay Board?

100% Authentic

GST Invoice - A GST invoice is included with every order.

Expert Support - Dedicated technical help on WhatsApp and email.

Pan-India Delivery - Shipped across Bengaluru, Delhi NCR, Hyderabad and all of India.

Trusted by Makers - Used by students, hobbyists and professionals nationwide.

Key Features of 8 Channel 5V Relay Board

• 8 Independent Relay Channels: Switch up to eight separate AC or DC loads simultaneously, each rated at 10A @ 250V AC for high-power applications.
• Optocoupler Isolation: Each input channel is optically isolated from the relay coil, protecting your microcontroller from voltage spikes and electrical noise.
• Active Low Trigger: Standard active-low logic ensures easy interfacing with Arduino, ESP32, Raspberry Pi GPIO, and other 3.3V/5V platforms.
• Individual Status LEDs: Dedicated LED indicator on each channel provides instant visual confirmation of relay ON/OFF state for easy debugging.
• SPDT Relay Contacts: Each relay offers Normally Open (NO), Normally Closed (NC), and Common (COM) terminals, giving you maximum wiring flexibility.
• Separable Power Supply (JD-VCC Jumper): Isolate relay coil power from MCU logic power by removing the JD-VCC jumper and using an external 5V supply - critical for stable, noise-free operation.
• Screw Terminal Outputs: Secure, reliable screw terminals on each relay channel for robust high-voltage wiring connections.
• Compact & Mountable Design: Four corner mounting holes allow secure installation inside enclosures, control panels, or project boxes.
• Wide Compatibility: Works seamlessly with Arduino Uno, Mega, Nano, Raspberry Pi, ESP8266, ESP32, STM32, PIC, BeagleBone, and virtually any microcontroller.
• Optocoupler isolation ensures your microcontroller stays safe from high-voltage transients
• Handles real-world loads - lights, fans, motors, pumps, solenoids, heaters, and more
• Perfect balance of channel count and board size for multi-device automation projects
• Extensively tested and proven in thousands of Arduino and Raspberry Pi projects worldwide

Perfect For

• Home Automation System: Control 8 household appliances - lights, fans, water heater, TV, air purifier, and more - from your smartphone via WiFi using ESP32 or Raspberry Pi with Blynk, Home Assistant, or MQTT.
• Smart Irrigation Controller: Automate 8 separate irrigation zones with soil moisture sensors and a scheduled watering system for gardens, farms, or greenhouses.
• Industrial Equipment Switching: Build a relay-based control panel to manage motors, pumps, conveyor belts, solenoid valves, and compressors in factory or workshop environments.
• Aquarium / Terrarium Controller: Independently manage heaters, lights, filters, air pumps, CO2 solenoids, and dosing pumps on automated schedules.
• Server Room / Data Center Power Management: Remotely reboot or power-cycle servers, routers, switches, and UPS units through a web-based dashboard.

Frequently Asked Questions

Customer Support

Email: techdepotindia@gmail.com

WhatsApp: Available for setup and troubleshooting help

Order your 8 Channel 5V Relay Board today and start building your next project.

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