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1 CH 5V Relay Board
Control high-voltage appliances and devices safely with this 1-Channel 5V Relay Module from The Engineer Store, Bengaluru. Designed for seamless integration with Arduino, Raspberry Pi, ESP32, and other microcontrollers, this relay board lets you switch AC/DC loads up to 250V AC / 30V DC using a simple 5V logic signal. Ideal for home automation, IoT projects, and industrial control applications. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Module Type | 1-Channel Relay Module |
| Operating Voltage | 5V DC |
| Trigger Signal | 3.3V-5V (Active Low) |
| Relay Type | SPDT (Single Pole Double Throw) - NO, NC, COM terminals |
| Maximum Switching Voltage | 250V AC / 30V DC |
| Maximum Switching Current | 10A |
| Relay Coil Current | ~70mA per channel |
| Isolation | Optocoupler isolated input for microcontroller protection |
| Indicator | Onboard LED for relay status (ON/OFF) |
| Switching Time | ~10ms (typical) |
| Relay Lifespan | 100,000 mechanical cycles (typical) |
| Board Dimensions | ~50mm x 26mm x 18mm |
| Mounting | Two screw-mount holes for secure installation |
| Connector Type | 3-pin header (VCC, GND, IN) + 3-pin screw terminal (COM, NO, NC) |
| Compatibility | Arduino, Raspberry Pi, ESP8266, ESP32, STM32, PIC, and other MCUs |
| Operating Temperature | -25 degreesC to +70 degreesC |
| Origin | Original/Authentic - Quality Tested |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Optocoupler Isolation: Protects your microcontroller from high-voltage spikes and back-EMF, ensuring safe and reliable operation.
- Active Low Trigger: Easily activated with a LOW signal from 3.3V or 5V logic microcontrollers for broad compatibility.
- SPDT Relay Output: Provides Normally Open (NO), Normally Closed (NC), and Common (COM) terminals for flexible switching configurations.
- High-Power Switching: Handle loads up to 250V AC at 10A - enough to control lights, fans, motors, pumps, and appliances.
- Onboard Status LED: Instantly see whether the relay is energized or de-energized without any additional instrumentation.
- Flyback Diode Protection: Built-in diode across the relay coil suppresses voltage spikes during switching, extending component life.
- Compact & Mountable: Small footprint with screw-mount holes makes it easy to integrate into enclosures, panels, and project boxes.
- Screw Terminals for Load: Secure, tool-tightened connections for high-voltage wiring - no soldering required on the output side.
Why Choose This?
- 100% authentic relay module sourced from trusted, authorized suppliers
- Optocoupler-isolated design ensures your Arduino or Raspberry Pi stays protected
- Rated for 10A at 250V AC - handles real-world appliance loads with confidence
- Plug-and-play with standard 2.54mm pin headers - no complex wiring needed
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most locations across India
- Expert technical support included - get help with wiring, code, and troubleshooting
- Backed by 7-day warranty on manufacturing defects for complete peace of mind
How It Works
- Input Side: Connect VCC to 5V, GND to ground, and IN to a digital GPIO pin on your microcontroller. When the IN pin receives a LOW signal, the optocoupler activates the relay coil.
- Relay Action: The electromagnetic relay switches its internal contacts - the COM terminal connects to NO (Normally Open) when energized, or stays connected to NC (Normally Closed) when idle.
- Output Side: Wire your high-voltage load (lamp, fan, motor, solenoid, etc.) through the screw terminals using the COM and NO or NC connections depending on your desired default state.
- Safety Isolation: The optocoupler provides electrical isolation between the low-voltage control circuit and the high-voltage switching circuit, preventing dangerous feedback.
Project Ideas
- Home Automation
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 1 CH 5V Relay Board Online in India
Purchase the 1 CH 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 1 CH 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 1 CH 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.
```html
1 CH 5V Relay Board
Control high-voltage appliances and devices safely with this 1-Channel 5V Relay Module from The Engineer Store, Bengaluru. Designed for seamless integration with Arduino, Raspberry Pi, ESP32, and other microcontrollers, this relay board lets you switch AC/DC loads up to 250V AC / 30V DC using a simple 5V logic signal. Ideal for home automation, IoT projects, and industrial control applications. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Module Type | 1-Channel Relay Module |
| Operating Voltage | 5V DC |
| Trigger Signal | 3.3V-5V (Active Low) |
| Relay Type | SPDT (Single Pole Double Throw) - NO, NC, COM terminals |
| Maximum Switching Voltage | 250V AC / 30V DC |
| Maximum Switching Current | 10A |
| Relay Coil Current | ~70mA per channel |
| Isolation | Optocoupler isolated input for microcontroller protection |
| Indicator | Onboard LED for relay status (ON/OFF) |
| Switching Time | ~10ms (typical) |
| Relay Lifespan | 100,000 mechanical cycles (typical) |
| Board Dimensions | ~50mm x 26mm x 18mm |
| Mounting | Two screw-mount holes for secure installation |
| Connector Type | 3-pin header (VCC, GND, IN) + 3-pin screw terminal (COM, NO, NC) |
| Compatibility | Arduino, Raspberry Pi, ESP8266, ESP32, STM32, PIC, and other MCUs |
| Operating Temperature | -25 degreesC to +70 degreesC |
| Origin | Original/Authentic - Quality Tested |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Optocoupler Isolation: Protects your microcontroller from high-voltage spikes and back-EMF, ensuring safe and reliable operation.
- Active Low Trigger: Easily activated with a LOW signal from 3.3V or 5V logic microcontrollers for broad compatibility.
- SPDT Relay Output: Provides Normally Open (NO), Normally Closed (NC), and Common (COM) terminals for flexible switching configurations.
- High-Power Switching: Handle loads up to 250V AC at 10A - enough to control lights, fans, motors, pumps, and appliances.
- Onboard Status LED: Instantly see whether the relay is energized or de-energized without any additional instrumentation.
- Flyback Diode Protection: Built-in diode across the relay coil suppresses voltage spikes during switching, extending component life.
- Compact & Mountable: Small footprint with screw-mount holes makes it easy to integrate into enclosures, panels, and project boxes.
- Screw Terminals for Load: Secure, tool-tightened connections for high-voltage wiring - no soldering required on the output side.
Why Choose This?
- 100% authentic relay module sourced from trusted, authorized suppliers
- Optocoupler-isolated design ensures your Arduino or Raspberry Pi stays protected
- Rated for 10A at 250V AC - handles real-world appliance loads with confidence
- Plug-and-play with standard 2.54mm pin headers - no complex wiring needed
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most locations across India
- Expert technical support included - get help with wiring, code, and troubleshooting
- Backed by 7-day warranty on manufacturing defects for complete peace of mind
How It Works
- Input Side: Connect VCC to 5V, GND to ground, and IN to a digital GPIO pin on your microcontroller. When the IN pin receives a LOW signal, the optocoupler activates the relay coil.
- Relay Action: The electromagnetic relay switches its internal contacts - the COM terminal connects to NO (Normally Open) when energized, or stays connected to NC (Normally Closed) when idle.
- Output Side: Wire your high-voltage load (lamp, fan, motor, solenoid, etc.) through the screw terminals using the COM and NO or NC connections depending on your desired default state.
- Safety Isolation: The optocoupler provides electrical isolation between the low-voltage control circuit and the high-voltage switching circuit, preventing dangerous feedback.
Project Ideas
- Home Automation
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 1 CH 5V Relay Board Online in India
Purchase the 1 CH 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 1 CH 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 1 CH 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.