Relay 4ch

The 5V 4-Channel Relay Module is designed for switching and controlling multiple high-power devices using low-voltage signals from microcontrollers or development boards. It includes four independent relay channels, allowing simultaneous control of multiple electrical devices.

The module features optocoupler isolation, which protects the control circuit from electrical noise and voltage spikes. It uses a low-level trigger, meaning each relay activates when the input signal is LOW.

Each channel has a status LED indicator to show the working state of the relay, and screw terminals provide easy and secure wiring for external devices.

This relay module is commonly used in home automation systems, IoT projects, robotics, industrial control systems, and smart switching applications.

Key Features

• Operating Voltage: 5V DC

• 4 independent relay channels

• Low-level trigger control

• Optocoupler isolation for improved safety

• LED indicators for each relay status

• Compatible with Arduino, ESP32, ESP8266, Raspberry Pi

• Screw terminals for easy wiring

• Can control AC and DC electrical devices

Technical Specifications

• Relay Model: SRD-05VDC-SL-C

• Maximum Switching Voltage: 250V AC / 30V DC

• Maximum Switching Current: 10A per channel

• Trigger Signal: Low Level

Applications

• Smart home automation

• Lighting control systems

• Industrial automation

• Robotics projects

• Remote appliance control

Package Includes

• 1 × 5V 4-Channel Relay Module with Optocoupler (Low Level Trigger)