4-Channel 12V Relay Module Active High

4-Channel 12V Relay Module Active High

The 4-Channel 12V Relay Module (Active High) offers control of four independent loads using a 12V DC active high trigger signal. Each channel activates when the control pin receives a high-level input, making it compatible with controllers configured for high triggers.

It supports AC loads up to 250V/10A and DC loads up to 30V/10A, allowing safe switching of household appliances, industrial equipment, and motorized devices. Built-in opto-isolators protect low-voltage circuits from high-voltage interference, while flyback diodes prevent damage caused by relay coil transients. This versatile module integrates easily with Arduino, ESP32, Raspberry Pi, AVR, and PIC controllers, making it an excellent choice for DIY projects, industrial automation, robotics, and IoT systems requiring reliable multi-channel control.

Key Features

• Provides four relay channels with 12V DC active high inputs.

• Supports switching AC loads up to 250V and 10A rating.

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

• Includes opto-isolators for controller and load circuit electrical isolation.

• Flyback diodes suppress relay coil voltage spikes and transients.

• Compatible with Arduino, ESP32, Raspberry Pi, and similar controllers.

• Screw terminals allow easy wiring and stable load connections.

Applications

• Controls multiple home appliances like lights, fans, and kitchen equipment.

• Interfaces microcontrollers with high-voltage loads in automation projects.

• Operates motors, pumps, and solenoids for robotics and industrial uses.

• Provides reliable switching for IoT smart home and monitoring systems.

• Supports automation in workshops, labs, and industrial manufacturing setups.

• Manages power distribution across several electrical devices simultaneously.

• Useful in DIY projects requiring compact four-channel switching capability.

Specifications Table