8-Channel 12V Relay Module Active High
The 8-Channel 12V Relay Module (Active High) allows independent control of eight loads using a 12V DC high-level trigger signal. Each channel activates when its input receives a high logic signal, making it ideal for microcontrollers configured for active high control.
It can handle AC loads up to 250V/10A and DC loads up to 30V/10A, making it suitable for household appliances, industrial machines, and motorized devices. The module includes opto-isolators for electrical isolation between the control and load circuits, while flyback diodes protect sensitive controllers from relay coil voltage spikes.
Engineered for both hobbyists and professionals, this module integrates seamlessly with Arduino, ESP32, Raspberry Pi, PIC, AVR, and ARM microcontrollers. Its high channel count makes it perfect for projects requiring multi-load control such as home automation, robotics, IoT systems, and industrial automation.
Key Features
Provides eight relay channels with 12V DC active high trigger inputs.
Handles AC loads up to 250V and 10A on each channel.
Supports DC loads up to 30V and 10A across multiple outputs.
Includes opto-isolators for reliable isolation of logic and load circuits.
Flyback diodes protect controllers against damaging relay coil voltage surges.
Compatible with Arduino, Raspberry Pi, ESP32, PIC, and embedded controllers.
Screw terminals allow secure wiring for multiple load connections simultaneously.
Applications
Automates several appliances such as fans, lamps, and electrical equipment.
Interfaces microcontrollers with many higher voltage loads simultaneously.
Powers motors, pumps, solenoids, and actuators in robotics and automation.
Builds IoT smart homes requiring multi-device relay switching control.
Supports industrial automation setups with numerous equipment load management.
Manages workshop tools and testing setups requiring multiple controlled devices.
Enables DIY projects needing reliable high-channel relay switching capacity.
Specifications Table
| Parameter | Value |
|---|---|
| Module Type | 8-Channel Relay Module |
| Operating Voltage | 12V DC |
| Input Trigger | Active High |
| Relay Coil Voltage | 12V DC ‘ |
| Isolation | Opto-isolators included |
| Maximum Load (AC) | 250V AC / 10A per channel |
| Maximum Load (DC) | 30V DC / 10A per channel |
| Input Control Current | 15–20 mA per channel |
| Terminals | Screw type for load connections |
| Dimensions | ~140 × 55 × 18 mm |
| Weight | ~95–110 g |
