5V 4 Channel Relay Module | Optocoupler Relay Board for Arduino, ESP32, Raspberry Pi

The 4-Channel 5V Relay Module is a reliable, optocoupler-isolated board designed to interface with 5V microcontrollers like Arduino, ESP32, and Raspberry Pi. This module allows you to safely control high-voltage devices such as lights, fans, pumps, and home appliances.

Each relay supports up to 250V AC at 10A or 30V DC at 10A, making it suitable for most common AC and DC loads. The built-in optocouplers provide electrical isolation to protect your low-voltage control circuitry from high-voltage transients.

🔧 Key Features:

• Operating Voltage: 5V DC

• 4 relay channels with individual status LEDs

• Relay Rating: 10A at 250V AC / 10A at 30V DC

• Optocoupler isolation for enhanced safety

• Logic level control: 0V (ON), 5V (OFF)

• Compatible with: Arduino, ESP32, Raspberry Pi, STM32, etc.

• Screw terminals for high-voltage connections

• Pin headers: GND, IN1, IN2, IN3, IN4, VCC, JD-VCC

📦 Package Includes:

• 1 x 4-Channel 5V Relay Module (Optocoupler Isolated)