24V 4-Channel Relay Module (with Light Coupling)

The 24V 4-Channel Relay Module with Light Coupling is designed with safety in mind, featuring isolation grooves between the control and load areas to meet safety standards. It utilizes optical coupling isolation technology, ensuring reliable and stable triggering of the relays.

Features:
– Reliable Triggering: The module employs optical coupling isolation technology for reliable and stable relay triggering.
– High-Quality Design: With a double FR-4 circuit board design and high-end SMT process, the module offers durability and performance.
– Easy Wiring: Relays terminals (C, NC, NO) are accessible via screw terminals, simplifying the wiring process.
– Isolated Inputs: The inputs of the module are isolated to protect delicate control circuitry, allowing for safe operation.
– Wide Compatibility: Compatible with a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, etc., making it versatile for various applications.
– High-Voltage Relay: The use of high-voltage relays eliminates the risk of relay heating, ensuring efficient operation and safety.

This relay module provides a safe and reliable solution for controlling multiple channels with the added benefits of optical coupling isolation technology and high-quality design. It is suitable for a variety of applications where reliable relay control is required.

Module interface:

The positive (according to the relay voltage VCC: connect power supply)
GND: connect power negative
IN1: relay module (effective) high-level trigger signal trigger end
IN2: relay module (effective) high-level trigger signal trigger end
IN3: relay module (effective) high-level trigger signal trigger end
IN4: relay module (effective) high-level trigger signal trigger end

Meaning of High level and Low-level

1. High-level trigger refers to using the anode voltage at the VCC connection way of a trigger and triggers the end when the trigger side has a positive voltage or to trigger voltage when the relay is off.
2. Low-level trigger refers to using the negative voltage at the GND connection way of a trigger and triggers the end when the trigger side has 0 v low voltage or voltage to can trigger, the relay is off.
   

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   Package includes:

   1 x 24V 4-Channel Relay Module (with Light Coupling)