Description

Specification Details
Module Type Single-channel electromechanical relay module
Supply Voltage 5 V DC for this version
Control Input Digital ON/OFF signal
Trigger Level Active LOW or HIGH, depending on board
Contact Configuration SPDT—Single Pole, Double Throw
Load Terminals COM, NO and NC
Control Connections Typically VCC, GND and IN
Driver Circuit Onboard transistor driver
Contact Rating Confirm the voltage/current markings on the relay
Optocoupler Available on some versions
Applications Lighting, pumps, fans and automation projects