4-Channel 24V Relay Module Active Low

4-Channel 24V Relay Module Active Low

The 4-Channel 24V Relay Module (Active Low) offers four independent relay channels for controlling multiple loads using 24V DC low-level trigger signals. Each relay activates when its input pin receives a low logic signal, making it suitable for systems configured for active low operation.

It supports AC loads up to 250V/10A and DC loads up to 30V/10A on each channel, allowing reliable operation of appliances, pumps, solenoids, and motors. Integrated opto-isolation provides strong electrical separation between control logic and high-power circuits, while flyback diode protection safeguards controllers from coil voltage spikes.

The module integrates seamlessly with Arduino, ESP32, Raspberry Pi, PLCs, and microcontrollers, making it a versatile solution for industrial automation, robotics, IoT, and multi-load switching projects that require reliable four-channel control.

Key Features

• Provides four relay channels with 24V DC active low inputs.

• Handles AC loads up to 250V and 10A per channel.

• Supports DC loads up to 30V and 10A per channel.

• Features opto-isolators for improved safety and isolation.

• Includes flyback diodes for controller protection from surges.

• Compatible with Arduino, Raspberry Pi, ESP32, and PLC systems.

• Screw terminals provide stable connections for multiple loads.

Applications

• Controls multiple devices such as lights, fans, and appliances.

• Bridges low-voltage control circuits with higher voltage systems.

• Operates motors, solenoids, and pumps in automation projects.

• Enables IoT applications requiring multi-channel load management.

• Supports home automation with several independently controlled devices.

• Powers switching systems in robotics and industrial automation.

• Integrates with PLCs for workshop and small factory control setups.

Specifications Table