4 Channel 24V Relay Module with Optocoupler Isolation (4 Way Relay Board)

The 4 Channel 24V Relay Module is an optically isolated relay board designed for controlling AC and DC loads from microcontrollers, PLCs, Arduino, ESP32, Raspberry Pi, and industrial automation systems. It features four independent relays with optocoupler isolation, providing enhanced protection between the control circuit and high-voltage load circuits.

The module is ideal for home automation, industrial control panels, motor control, lighting systems, and embedded switching applications requiring reliable electrical isolation and multi-channel load control.

Key Features -

• 4 independent relay channels

• 24V DC relay coil voltage

• Optocoupler isolation for enhanced protection

• High-voltage and low-voltage circuit isolation

• LED status indicators for each channel

• Screw terminal connections for easy wiring

• Compatible with PLCs, Arduino, ESP32, and Raspberry Pi

Specifications -

• Product type - Relay Module

• Number of channels - 4 Channel

• Relay coil voltage - 24V DC

• Isolation type - Optocoupler Isolation

• Trigger input - Digital Control Signal

• Contact configuration - SPDT Relay Contacts

• Mounting type - PCB Module

• Input interface - Control Signal Header Pins

• Output interface - Screw Terminal Connectors

• Status indication - Onboard LED Indicators

Interfaces -

• VCC - Module Power Input

• GND - Ground Connection

• IN1 - Relay Channel 1 Control Input

• IN2 - Relay Channel 2 Control Input

• IN3 - Relay Channel 3 Control Input

• IN4 - Relay Channel 4 Control Input

• COM - Common Relay Contact

• NO - Normally Open Contact

• NC - Normally Closed Contact

Applications -

• Industrial automation systems

• PLC control panels

• Home automation projects

• Motor control circuits

• Lighting control systems

• Smart switching applications

• Embedded control systems