The 2 Channel 12V Relay Module is a dual-relay switching board designed to control two independent AC or DC loads using a 12 V control signal. Each channel features optocoupler isolation for noise immunity and protection, making it ideal for home automation, industrial equipment control, and advanced DIY electronics. It safely interfaces low-power control systems with high-voltage devices such as lights, fans, motors, and pumps.
Technical Specifications
Core Specifications
Operating voltage: 12 V DC
Trigger voltage: 12 V DC (compatible with 12 V logic systems)
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 15–20 mA per channel
Electrical & Physical
Two independent relay channels with optocoupler isolation
LED indicators for module power and individual relay status
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
Reliable operation in indoor and industrial environments
Why Choose the 2 Channel 12V Relay Module
Controls two separate AC or DC loads from one board
Optocoupler isolation protects sensitive electronics from voltage spikes
Compatible with 12 V automation systems and microcontroller setups
Critical Uses
Home automation for lights, fans, and appliances
Industrial automation for dual motor, pump, or solenoid control
Remote-controlled switching systems and IoT projects
DIY robotics and smart home applications requiring 12 V logic
Pro Tips
Connect the module ground to the control system ground for proper triggering
Ensure each connected device does not exceed the rated current
Use proper insulation and wiring when switching high-voltage AC loads
Package Includes
1 × 2 Channel 12V Relay Module