3.3V 5V 3 Channel Relay Module 5mA With Optocoupler Isolation Compatible Signal

Description

3-Channel Relay Module With Optocoupler Isolation Compatible 3.3V 5V Signal

Product Introduction: 1.Size:63*42*20mm 2.Power Supply Voltage:5V 3.Trigger Level:3V-7V trigger 4.Trigger Current:5mA 5.Control Voltage:AC 0-250V or DC 0-30V 6.Control Current:0-7A 7.Function:weak current control strong current (low voltage control high voltage;level signal control mechanical signal) 8.Using Method:this module is high level trigger,on-board pin marked GND(RGND)5V is respectively relay 5V power negative and positive;CH1,CH2,CH3 is control port,high level trigger;that is to say,after module power on,control port receives high level,the relay will be connected