2-Channel Relay Module with Optocoupler Protection Relay Shield / Expansion Board

Module Specifications:

1. Dimensions: 50.5mm (L) x 38.5mm (W) x 18.5mm (H)
2. Weight: 31g
3. PCB Color: Black
4. Mounting: Equipped with 4 fixing screw holes around the board, hole diameter 3.1mm, for easy installation and fixation.
5. Relay: Uses high-quality Songle relay, Single Pole Double Throw (SPDT). Includes one common terminal, one normally open terminal, and one normally closed terminal.
6. Isolation: Optocoupler isolation for good anti-interference performance.
7. Trigger Signal: Low level activates the relay (energized), High level deactivates it (released). The status indicator LED is ON when activated and OFF when released.
8. Power Supply: VCC is the system power supply, JD-VCC is the relay power supply. Connect the jumper cap to link them.

Electrical Parameters:

• Supply Voltage: 5 VDC
• Current: > 100 mA
• Contact Load Capacity: 250V 10A AC or 30V 10A DC

Connection Instructions:

• VCC: System Power Positive
• GND: System Power Negative
• IN1 -- IN2: Relay Control Ports

(Note: Please do not reverse the connections. We do not accept returns or exchanges for modules damaged due to incorrect wiring.)