4-Channel 5V Relay Module with Optocoupler Isolation

The 4-Channel 5V Relay Module with Optocoupler Isolation is a high-performance interface board designed to allow microcontrollers to control high-voltage and high-current electrical appliances. Each of the four channels is independently opto-isolated, ensuring that your sensitive microcontroller logic is protected from electrical noise and transient spikes, making it an essential tool for robust industrial and home automation projects.

This module features a flexible design that supports both high and low-level triggering, making it compatible with a wide range of platforms like Arduino, ESP32, Raspberry Pi, and industrial PLCs. Whether you are building a smart lighting system, a complex robotic controller, or an automated industrial switch array, this module provides the reliability and safety you need to bridge low-voltage logic with high-power AC or DC loads.

Features:

• Optocoupler Isolation: Each channel features independent galvanic isolation for maximum safety and noise immunity.
• 4 Independent Channels: Independently control up to four high-power devices via separate relay contacts.
• Trigger Flexibility: Configurable for either high-level or low-level trigger modes via jumper settings.
• Robust Relays: Equipped with high-quality relays capable of handling significant AC/DC load currents.
• Status Indicators: Onboard LED indicators provide immediate visual feedback for the status of each individual relay channel.
• Breadboard Friendly: Features a standardized interface for quick integration into custom circuit diagrams and control enclosures.

Package Includes:

1 x 4-Channel 5V Relay Module with Optocoupler Isolation