5V Dual Channel Relay Module with Optocoupler
5V Dual Channel Relay Module with Optocoupler
This 5V Dual Channel Relay Module lets you independently switch two high-voltage AC or DC loads using a low-voltage signal from your microcontroller. Built-in optocouplers provide electrical isolation between the control and load circuits, protecting your development board. It is a reliable choice for home automation, IoT projects, and industrial control systems.
Specifications
- Operating Voltage: 5V DC
- Relay Type: 2-Channel, SPDT (Single Pole Double Throw) per channel
- Contact Rating: 10A @ 250VAC, 10A @ 30VDC
- Trigger Level: Active Low (signal low to activate relay)
- Isolation: Optocoupler (EL354 or equivalent) between control and load sides
- Dimensions: Approx. 50mm x 26mm x 18mm
- Pinout: VCC, GND, IN1, IN2 (control inputs); COM, NO, NC per channel (load terminals)
Compatible with
Arduino Uno, Nano, Mega; ESP32; ESP8266 (NodeMCU, Wemos D1); Raspberry Pi (3B+, 4, 5); STM32; and any 5V or 3.3V logic microcontroller.
What you can build with it
- Smart home light or fan control using an ESP32 and a mobile app
- Automated irrigation system that switches a water pump based on soil moisture sensor readings
- Remote-controlled power outlet for lab equipment using an Arduino and IR remote
Built and Backed by Compoden
Every module comes with access to our AI build companion — delivered via QR code, email, or WhatsApp — that helps you wire and program this relay into a working project. With over 10 years of supplying makers and institutions across India, we ensure you get a part that works as expected. Pay your way: UPI, cards, or Cash on Delivery, anywhere in India.
What is the difference between NO and NC on this relay module?
NO (Normally Open) means the relay contact is open when the module is not triggered. NC (Normally Closed) means it is closed when not triggered. COM is the common terminal. When you apply an active low signal, the relay switches: NO connects to COM, and NC disconnects from COM.
What payment options are available for the 5V Dual Channel Relay Module?
You can pay using UPI, debit/credit cards, or Cash on Delivery (COD). All payment methods are available across India.
How long does delivery take and where do you ship?
We ship the 5V Dual Channel Relay Module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery typically takes 3–7 business days depending on your location.
Buy 5V Dual Channel Relay Module Online in India with COD and UPI available across India.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items