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8 Channel 5V Relay Board
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. Available now from The Engineer Store, Bengaluru with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Module Type | 8 Channel Relay Module |
| Operating Voltage | 5V DC |
| Trigger Signal | 3.3V / 5V Logic (Active Low) |
| Relay Type | SPDT (Single Pole Double Throw) - NO, NC, COM per channel |
| Contact Rating | 10A @ 250V AC / 10A @ 30V DC (per relay) |
| Isolation | Optocoupler isolated inputs for MCU protection |
| Number of Channels | 8 Independent Channels |
| Indicator LEDs | 8 individual status LEDs (one per channel) |
| Input Pins | IN1-IN8, VCC, GND, JD-VCC |
| Board Dimensions | Approx. 138 x 51 x 20 mm |
| Mounting | 4 screw holes for secure panel/chassis mounting |
| Compatibility | Arduino, Raspberry Pi, ESP8266, ESP32, STM32, PIC, and more |
| Origin | Original / Authentic Quality |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- 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.
Why Choose This 8 Channel Relay Board?
- 100% authentic module sourced directly from trusted, authorized suppliers
- 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
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse; same-day delivery in Bengaluru
- Expert technical support included - get help with wiring, code, and integration
Project Ideas
- 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
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 8 Channel 5V Relay Board Online in India
Purchase the 8 Channel 5V Relay Board online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 8 Channel 5V Relay Board with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 8 Channel 5V Relay Board at the best price in India? The Engineer Store 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.
8 Channel 5V Relay Board
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. Available now from The Engineer Store, Bengaluru with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Module Type | 8 Channel Relay Module |
| Operating Voltage | 5V DC |
| Trigger Signal | 3.3V / 5V Logic (Active Low) |
| Relay Type | SPDT (Single Pole Double Throw) - NO, NC, COM per channel |
| Contact Rating | 10A @ 250V AC / 10A @ 30V DC (per relay) |
| Isolation | Optocoupler isolated inputs for MCU protection |
| Number of Channels | 8 Independent Channels |
| Indicator LEDs | 8 individual status LEDs (one per channel) |
| Input Pins | IN1-IN8, VCC, GND, JD-VCC |
| Board Dimensions | Approx. 138 x 51 x 20 mm |
| Mounting | 4 screw holes for secure panel/chassis mounting |
| Compatibility | Arduino, Raspberry Pi, ESP8266, ESP32, STM32, PIC, and more |
| Origin | Original / Authentic Quality |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- 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.
Why Choose This 8 Channel Relay Board?
- 100% authentic module sourced directly from trusted, authorized suppliers
- 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
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse; same-day delivery in Bengaluru
- Expert technical support included - get help with wiring, code, and integration
Project Ideas
- 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
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 8 Channel 5V Relay Board Online in India
Purchase the 8 Channel 5V Relay Board online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 8 Channel 5V Relay Board with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 8 Channel 5V Relay Board at the best price in India? The Engineer Store 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.