Dual Channel Relay Module with Optocoupler
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020

Dual Channel Relay Module with Optocoupler

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  • Product SKU: KG815
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  • two Channel 5V Relay Module (With optocoupler)
  • Trigger Voltage (VDC) : 5
  • two Channel 12V Relay Module (With optocoupler)
  • Trigger Voltage (VDC) : 12
  • two Channel 24V Relay Module (With optocoupler)
  • Trigger Voltage (VDC) : 24

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    Versatile Control with Two Channel: 12V Relay Module with Optocoupler

    Section 1: Flexible Relay Control

    Experience flexible relay control with the Two Channel 12V Relay Module with Optocoupler. This module is designed to provide reliable switching capabilities for your electronic circuits. With two independent channels and optocoupler isolation, it offers enhanced versatility and isolation between control and load circuits. Whether you need to control multiple devices, automate electrical systems, or create interactive projects, this relay module empowers you to effectively manage your circuits with ease.

    Two Independent Channels

    Benefit from the two independent channels of the 12V Relay Module. Each channel provides a separate switching capability, allowing you to control two different devices or circuits independently. This dual-channel feature provides flexibility in managing multiple loads or implementing complex control systems, enhancing the functionality and convenience of your electronic projects.

    Optocoupler Isolation

    The Two Channel 12V Relay 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 Two Channel 12V Relay 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 12V Relay 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 Two Channel 12V Relay 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 12V Relay 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

    • Relay Type : Low Level Trigger
    • Logic Input (V) : 3.3 ~ 5
    • Trigger Voltage (VDC) : 5/12/24
    • Switching Voltage (VAC) : 250@10A
    • Switching Voltage (VDC) : 30@10A

    Physical Attributes

    • L x W x H (mm) : 50.6 x 39 x 19.5
    • Weight (gm) : 28


    • 2 LEDs to indicate when relays are ON.
    • Works with logic level signals from 3.3V or 5V devices
    • Opto isolation circuitry
    • Module with diode current protection, short response time
    • Around the board with 4 mounting holes, hole diameter 3. 1 mm, easy installation and fixing

    Integration with Arduino

    Two Channel 12V Relay Module With Optocoupler


    Sample Code


    Integration with Raspberry Pi

    Two Channel 12V Relay Module


    Sample Code


    Dual-Channel Relay Module Basic Troubleshooting

    If either of the relays does not turn on:
    • 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 Dual Channel Relay Module with Optocoupler

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