30A 1-Channel Relay With Optocoupler Isolation

30A Single Channel Relay Module Opto coupler Isolated High Power Relay

The30A 1-Channel Relay Module with Optocoupler Isolation is a high-power relay board designed to safely control large loads such as motors, pumps, heaters, appliances, and industrial equipment.

With an optocoupler isolation circuit, it protects the low-voltage control side (Arduino, Raspberry Pi, ESP32, STM32, PLCs, etc.) from high-voltage surges, ensuring safety and reliability. Its 30A rated relay makes it suitable for heavy-duty applications where standard 10A relays are insufficient.

Key Features

• High power relay rated up to 30A for heavy loads.

• Optocoupler isolation ensures safe separation between control and load sides.

• Compatible with Arduino, Raspberry Pi, ESP32, STM32, and other controllers.

• Supports 5V/12V control signals (depending on model variant).

• LED indicators for power and relay status.

• Screw terminal connectors for secure load wiring.

• Suitable for AC and DC load switching.

• Durable PCB design with mounting holes.

Technical Specifications

Applications

• Industrial machinery control motors, pumps, compressors.

• Smart home automation control high-power appliances.

• HVAC systems fans, heaters, coolers.

• Battery & solar power systems switching high-current DC loads.

• IoT & Robotics safe control of heavy electrical devices.

• DIY electronics advanced projects requiring high-current switching.