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2-Channel 5V Relay Board with Optocoupler
Control high-voltage appliances safely from your microcontroller with this 2-channel 5V relay module featuring built-in optocoupler isolation. Designed for Arduino, Raspberry Pi, ESP32, and other 5V-compatible development boards, this relay module lets you switch AC/DC loads up to 250V AC / 30V DC while keeping your logic circuits electrically isolated and protected. A must-have module for home automation, IoT projects, and industrial control applications. Premium quality from The Engineer Store, Bengaluru - fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Module Type | 2-Channel Relay Module with Optocoupler Isolation |
| Relay Operating Voltage | 5V DC |
| Signal Trigger Level | Low-level trigger (active LOW) |
| Number of Channels | 2 (independently controllable) |
| Relay Type | SPDT (Single Pole Double Throw) - NO, NC, COM terminals per channel |
| Max Switching Voltage | 250V AC / 30V DC |
| Max Switching Current | 10A per channel |
| Isolation Method | Optocoupler (optical isolation between control and load side) |
| Control Input Voltage | 3.3V - 5V logic compatible |
| Quiescent Current (per relay) | ~70-80 mA when energized |
| Relay Indicator | Individual red LED per channel (lights when relay is active) |
| Power Indicator | Green LED for board power status |
| Connector Type | Screw terminals for load connections; pin header for control signals |
| Pin Header Interface | VCC, GND, IN1, IN2 |
| Board Dimensions | ~50mm x 38mm x 18mm (L x W x H) |
| Mounting Holes | 4 x M3 mounting holes for secure installation |
| Operating Temperature | -40 degreesC to +85 degreesC |
| Relay Mechanical Life | ~100,000 operations (typical) |
| Relay Electrical Life | ~50,000 operations at rated load |
| Compatibility | Arduino Uno/Mega/Nano, Raspberry Pi, ESP8266, ESP32, STM32, PIC, and other MCUs |
| Origin | Original/Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Optocoupler Isolation: Electrically isolates the microcontroller from high-voltage relay circuits, preventing noise, voltage spikes, and ground loops from damaging your logic board
- 2 Independent Channels: Control two separate appliances or loads simultaneously with individual relay outputs
- SPDT Relay Contacts: Each channel provides Normally Open (NO), Normally Closed (NC), and Common (COM) terminals for maximum wiring flexibility
- Low-Level Trigger: Active-LOW input means the relay energizes when the input pin is pulled to GND - compatible with most microcontroller GPIO outputs
- High Current Handling: Each relay can switch loads up to 10A at 250V AC or 30V DC, suitable for lights, fans, motors, heaters, and solenoids
- LED Status Indicators: Individual red LEDs show relay activation status at a glance; green LED confirms board power
- Screw Terminal Connections: Secure, tool-tightened screw terminals for reliable high-voltage load wiring
- Compact & Mountable: Small PCB footprint with four M3 mounting holes for clean installation in enclosures and project boxes
- Wide Voltage Logic Compatibility: Works with both 3.3V and 5V logic levels, making it compatible with Arduino, ESP32, Raspberry Pi, and more
- Durable Relay Construction: Rated for 100,000 mechanical cycles, ensuring long-term reliability in repeated switching applications
Why Choose This 2-Channel Relay Module?
- 100% Authentic: Sourced directly from trusted and authorized component suppliers - no clones or counterfeits
- Safe Isolation Design: Optocoupler-based isolation protects your expensive microcontroller from relay-side electrical noise and surges
- Plug-and-Play Simplicity: Standard pin header interface connects directly to Arduino and other boards - no additional driver circuitry required
- Versatile Load Switching: Handle everything from low-voltage DC devices to mains-powered AC appliances with a single module
- Fast Shipping from Bengaluru:
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 2-Ch 5V relay Board with optocoupler Online in India
Purchase the 2-Ch 5V relay Board with optocoupler 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 2-Ch 5V relay Board with optocoupler 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 2-Ch 5V relay Board with optocoupler 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.
2-Channel 5V Relay Board with Optocoupler
Control high-voltage appliances safely from your microcontroller with this 2-channel 5V relay module featuring built-in optocoupler isolation. Designed for Arduino, Raspberry Pi, ESP32, and other 5V-compatible development boards, this relay module lets you switch AC/DC loads up to 250V AC / 30V DC while keeping your logic circuits electrically isolated and protected. A must-have module for home automation, IoT projects, and industrial control applications. Premium quality from The Engineer Store, Bengaluru - fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Module Type | 2-Channel Relay Module with Optocoupler Isolation |
| Relay Operating Voltage | 5V DC |
| Signal Trigger Level | Low-level trigger (active LOW) |
| Number of Channels | 2 (independently controllable) |
| Relay Type | SPDT (Single Pole Double Throw) - NO, NC, COM terminals per channel |
| Max Switching Voltage | 250V AC / 30V DC |
| Max Switching Current | 10A per channel |
| Isolation Method | Optocoupler (optical isolation between control and load side) |
| Control Input Voltage | 3.3V - 5V logic compatible |
| Quiescent Current (per relay) | ~70-80 mA when energized |
| Relay Indicator | Individual red LED per channel (lights when relay is active) |
| Power Indicator | Green LED for board power status |
| Connector Type | Screw terminals for load connections; pin header for control signals |
| Pin Header Interface | VCC, GND, IN1, IN2 |
| Board Dimensions | ~50mm x 38mm x 18mm (L x W x H) |
| Mounting Holes | 4 x M3 mounting holes for secure installation |
| Operating Temperature | -40 degreesC to +85 degreesC |
| Relay Mechanical Life | ~100,000 operations (typical) |
| Relay Electrical Life | ~50,000 operations at rated load |
| Compatibility | Arduino Uno/Mega/Nano, Raspberry Pi, ESP8266, ESP32, STM32, PIC, and other MCUs |
| Origin | Original/Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Optocoupler Isolation: Electrically isolates the microcontroller from high-voltage relay circuits, preventing noise, voltage spikes, and ground loops from damaging your logic board
- 2 Independent Channels: Control two separate appliances or loads simultaneously with individual relay outputs
- SPDT Relay Contacts: Each channel provides Normally Open (NO), Normally Closed (NC), and Common (COM) terminals for maximum wiring flexibility
- Low-Level Trigger: Active-LOW input means the relay energizes when the input pin is pulled to GND - compatible with most microcontroller GPIO outputs
- High Current Handling: Each relay can switch loads up to 10A at 250V AC or 30V DC, suitable for lights, fans, motors, heaters, and solenoids
- LED Status Indicators: Individual red LEDs show relay activation status at a glance; green LED confirms board power
- Screw Terminal Connections: Secure, tool-tightened screw terminals for reliable high-voltage load wiring
- Compact & Mountable: Small PCB footprint with four M3 mounting holes for clean installation in enclosures and project boxes
- Wide Voltage Logic Compatibility: Works with both 3.3V and 5V logic levels, making it compatible with Arduino, ESP32, Raspberry Pi, and more
- Durable Relay Construction: Rated for 100,000 mechanical cycles, ensuring long-term reliability in repeated switching applications
Why Choose This 2-Channel Relay Module?
- 100% Authentic: Sourced directly from trusted and authorized component suppliers - no clones or counterfeits
- Safe Isolation Design: Optocoupler-based isolation protects your expensive microcontroller from relay-side electrical noise and surges
- Plug-and-Play Simplicity: Standard pin header interface connects directly to Arduino and other boards - no additional driver circuitry required
- Versatile Load Switching: Handle everything from low-voltage DC devices to mains-powered AC appliances with a single module
- Fast Shipping from Bengaluru:
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 2-Ch 5V relay Board with optocoupler Online in India
Purchase the 2-Ch 5V relay Board with optocoupler 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 2-Ch 5V relay Board with optocoupler 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 2-Ch 5V relay Board with optocoupler 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.