Four Channel Relay Board Module (With optocoupler)
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020

Four Channel Relay Board Module (With optocoupler)

Available:In Stock
  • Product SKU: KG127
₹ 129 ₹ 181
Available offers
Best Rates

on Express Shipping – Hurry! Shipping starts from Rs69.

Free Shipping Offer -

Avail free shipping on all orders above Rs999.

Volume Discounts-

Buy More Save More! Discounts upto 20%. Contact us

Special Bulk Discounts

for colleges, Schools, Companies & resellers Contact us

Cash on Delivery

Available above Rs 999

  • Original, High Quality
  • KitsGuru Warranty
  • Email Support
  • Video Support to be purchased separately
Easy Payment Options
  • Netbanking
  • Debit/Credit cards
  • Cash on Delivery
  • E-wallets/UPI
Shipping Details
International Shipping
  • Four Channel 5V Relay Board Module (With optocoupler)
  • Trigger Voltage (VDC) : 5V
  • Four Channel 12V Relay Board Module (With optocoupler)
  • Trigger Voltage (VDC) : 12V
  • Four Channel 24V Relay Board Module (With optocoupler)
  • Trigger Voltage (VDC) : 24V

  •   Need Volume Discounts? Deals are specially designed for you. Click here

      Need Customization? Provide us more details Click here

    Warehouse Details   12B-110 17B-109 17F-139

    • Order within



    Enhanced Control: Four Channel 5V Relay Board Module with Optocoupler

    Section 1: Versatile Relay Control

    Experience versatile relay control with the Four Channel 5V Relay Board Module with Optocoupler. This module is designed to provide reliable switching capabilities for your electronic circuits. With four independent channels and optocoupler isolation, it offers enhanced flexibility and isolation between control and load circuits. Whether you need to control multiple devices, automate electrical systems, or create complex control systems, this relay module empowers you to effectively manage your circuits with ease.

    Four Independent Channels

    Benefit from the four independent channels of the 5V Relay Board Module. Each channel provides a separate switching capability, allowing you to control four different devices or circuits independently. This multi-channel feature provides extensive flexibility in managing multiple loads, implementing complex control systems, or creating custom automation setups, expanding the possibilities of your electronic projects.

    Optocoupler Isolation

    The Four Channel 5V Relay Board Module with Optocoupler features optocoupler isolation, which provides electrical isolation between the control circuit and the load circuit. This isolation helps protect the control circuit from voltage spikes and electrical noise generated by the load circuit, ensuring reliable operation and reducing the risk of interference or damage to the control circuit.

    Section 2: Easy Integration and Convenient Features

    Straightforward Wiring and Setup

    The Four Channel 5V Relay Board Module with Optocoupler offers straightforward wiring and setup. With clearly labeled connection points and a user-friendly design, this module simplifies integration into your circuits. Whether you're a beginner or an experienced electronics enthusiast, you can quickly and effortlessly incorporate this relay module, saving time and effort during the setup phase.

    LED Indicators

    Experience the convenience of LED indicators on the 5V Relay Board Module. Each channel is equipped with an LED indicator that provides a visual indication of the relay's status. These indicators allow you to easily determine whether the relays are energized or de-energized, enhancing usability and enabling quick troubleshooting of your circuits.

    Section 3: Reliable Performance and Safety

    Stable and Reliable Switching

    Rely on the Four Channel 5V Relay Board Module with Optocoupler for stable and reliable switching. It is built with high-quality components and designed to provide consistent and precise switching of electrical signals. This relay module ensures reliable operation, allowing you to control the flow of current with confidence, minimizing the risk of signal disruptions or voltage fluctuations.

    Built-in Protection Features

    The 5V Relay Board Module with Optocoupler incorporates built-in protection features to safeguard your circuits and the module itself. It includes protection mechanisms such as diodes and resistors to prevent voltage spikes and electrical noise from affecting the control circuit. These features help ensure the longevity and reliability of your relay module and connected devices, enhancing safety and performance.

    Technical Details

    • Channel : 4
    • Trigger Voltage (VDC) : 5/12/24V
    • Switching Voltage (VAC) : 250@10A
    • Switching Voltage (VDC) : 30@10A
    • Trigger Current (mA) : 20

    Physical Attributes : Four Channel 5V Module

    • Mounting hole dimensions : Diameter=3mm,
      X-axis pitch=68mm
      Y-axis pitch=48mm
    • L x W x H (mm) : 75.5 x 55.5 x 20
    • Weight (gm) : 58

    Features : Four Channel 5V Module

    • Equipped with high-current relay 10A@250VAC / 10A@30VDC
    • It can control both AC and DC appliances such as Solenoids, Motors, lights, fans, etc
    • High-quality screw terminals (Terminal Block) provided (C, NC, NO) for quick and easy connection
    • Freewheeling diode to protect your microcontroller
    • Input Signal Pin connected to Burg stick for easy accessibility
    • LED Status indicators to indicate the relay ON/OFF status
    • Mounting holes provided
    • Signal input with a high-level signal, the common and often start conduction;
    • The relay can directly control all kinds of equipment and load;
    • One often opened a normally closed contact;
    • Blue KF301 terminal line more convenient.

    Integration with Arduino : Four Channel 5V Module


    Sample Code


    Integration with Raspberry Pi


    Sample Code


    Dual-Channel Relay Module Basic Troubleshooting

    • The contacts might be welded due to overcurrent/arcing. Shaking the module firmly might help unstick the contacts
    • The driver circuitry might have been damaged due to overvoltage.
    • Input polarity might be incorrect.
    • Jumper might not have been moved to the correct position



    • Switching mains loads
    • Home automation
    • Battery backup
    • High current load switching


    Product Video



    Package Includes

    • 1 x Four Channel Relay Board Module (With optocoupler)

    Customer Reviews

    Be the first to write a review