Description

Specification Details
Module Type Electromechanical relay board with optocouplers
Number of Channels Four independently controlled channels
Relay Supply Voltage 5 V DC
Trigger Type Active LOW on the reference version
Contact Configuration SPDT per channel
Relay Contact Rating Listed up to 10 A at 250 V AC or 30 V DC; verify fitted relays and load type
Control Inputs IN1, IN2, IN3 and IN4
Power Connections VCC, GND and JD-VCC on common versions
Supply Jumper Links logic-side and relay-coil supplies
Output Terminals COM, NO and NC for each channel
Indicators Individual channel status LEDs
Onboard Circuitry Optocouplers, transistor drivers and coil-protection diodes
Load Connections Screw terminals
Applications Home automation, lights, fans, pumps and educational projects