The 2 Channel 5V Relay Module is a robust, dual-relay switching board designed to control two independent high-voltage AC or DC loads using low-voltage logic signals. Each channel provides electrical isolation and reliable operation, making it perfect for home automation, industrial control, and DIY projects. With optocoupler protection and compatibility with 3.3 V or 5 V microcontrollers, it ensures safe and efficient switching of lights, motors, appliances, and other high-power devices.
Technical Specifications
Core Specifications
Operating voltage: 5 V DC
Trigger voltage: 3 V to 5 V DC (works with 3.3 V and 5 V logic)
Relay type: SPDT (Single Pole Double Throw) per channel
Load capacity: 10 A at 250 V AC or 10 A at 30 V DC for each relay
Trigger current: approximately 20 mA per channel
Electrical & Physical
Two independent relay channels with optocoupler isolation
LED indicators for power and individual relay activation
Screw terminals for secure high-voltage connections
Signal input pins for IN1, IN2, VCC, and GND
Module dimensions approximately 50 mm × 40 mm × 18 mm
Environmental
Operating temperature range: –40 °C to +85 °C
Stable operation for both indoor and industrial environments
Why Choose the 2 Channel 5V Relay Module
Controls two separate AC or DC loads from a single board
Optocoupler isolation protects microcontrollers from high-voltage spikes
Compatible with Arduino, Raspberry Pi, ESP32, and other development boards
Critical Uses
Home automation for lights, fans, pumps, and appliances
Industrial automation for dual motor or solenoid control
Remote-controlled switching systems and IoT projects
DIY robotics and smart home applications
Pro Tips
Connect the module ground to the microcontroller ground for proper triggering
Ensure each connected load does not exceed the rated current
Use proper insulation and wiring when dealing with AC mains voltage
Package Includes
1 × 2 Channel 5V Relay Module