4-Channel 5V Relay Module, Active Low Trigger

4-Channel 5V Relay Module, Active Low Trigger

The 4-Channel 5V Relay Module (Active Low) enables independent control of four electrical loads using low-voltage signals. It works with popular platforms like Arduino, Raspberry Pi, ESP32, PIC, AVR, and more.

Each channel operates with an active low trigger, switching the relay when the input pin goes low. Built-in opto-isolators protect controllers from noise and surges, while flyback diodes shield against coil voltage spikes.

The module can control both AC and DC loads up to 10A, making it highly suitable for smart homes, robotics, and industrial systems. Its four relays on one board allow efficient multi-device management in compact form.

Key Features

• Provides four independent relay channels for flexible load management.

• Operates with 5V input voltage and supports active low triggering.

• Includes opto-isolators for electrical isolation and noise reduction.

• Flyback diodes safeguard relays and circuits against back-EMF damage.

• Supports AC and DC loads for versatile application possibilities.

• Handles up to 10A current per relay channel reliably.

• Provides screw terminal connectors for strong and secure wiring connections.

Applications

• Controls multiple appliances such as lights, fans, or heaters in automation systems.

• Implements smart home solutions with multi-device switching through microcontrollers.

• Provides safe and reliable switching in industrial process control environments.

• Automates agricultural equipment like water pumps and irrigation systems.

• Used in robotics for switching motors, actuators, and mechanical relays.

• Interfaces embedded controllers with high-power electrical devices for safe operation.

• Builds IoT-enabled projects managing multiple household and industrial appliances together.

Specifications Table