16 Channel 12V Relay Module with Optocoupler Isolation (16-Channel Opto-Isolated Relay Board)

The 16 Channel 12V Relay Module with Optocoupler Isolation is a high-capacity switching interface board designed to control sixteen independent AC or DC loads using low-voltage control signals. Each relay channel features optocoupler isolation to electrically separate the control circuit from the relay circuit, protecting microcontrollers and PLCs from voltage spikes, electrical noise, and interference. Operating from a 12V DC supply, the module is compatible with Arduino, ESP32, ESP8266, STM32, Raspberry Pi (with appropriate interfacing), PLCs, and other embedded control systems. It is ideal for industrial automation, home automation, machine control, IoT systems, and multi-channel switching applications.

Key Features -

• Sixteen independent relay channels

• 12V DC operating voltage

• Optocoupler isolation for enhanced protection

• LED indicators for relay status

• High-current mechanical relays

• Screw terminal connections for secure wiring

• Compatible with microcontrollers and PLCs

• Stable and reliable switching performance

• Compact PCB design

• Ideal for automation and control applications

Specifications -

• Product type - Relay Module

• Number of channels - 16

• Operating voltage - 12V DC

• Relay type - Mechanical Relay

• Isolation - Optocoupler Isolation

• Maximum switching voltage - 250V AC / 30V DC

• Maximum switching current - 10A per Channel

• Input type - Digital Logic Control

• Output contacts - NO, NC and COM

• Mounting type - PCB Module

Applications -

• Industrial automation

• Home automation

• PLC control systems

• Smart building control

• Robotics

• IoT projects

• Lighting control

• Motor and pump control

• Industrial machinery

• Multi-channel appliance switching