3pcs BESTEP 2 Channel 3V Relay Module Low Level Trigger Optocoupler Isolation For Auduino

Module parameters 1 Size 50 5 x 38 5 x 18 5mm length x width x height 2 Weight 31g3 PCB color Black4 There are 4 fixing screw holes around the board the hole diameter is 3 1mm which is convenient for installation and fixing 5 Relay with a common end a normally open end and a normally closed end6 Optocoupler isolation good anti interference7 Low level pull in high level release The status indicator is on when the inverter is closed and the status indicator is off when released 8 VCC is the system power supply and JD VCC is the relay power supply use with the jumper cap Electrical parameters Supply voltage 3VCurrent greater than 100mALoad 250V 10A AC or 30V 10A DC Wiring instructions VCC System power supply positiveGND System power supply negativeIN1 IN2 Relay Control Port Do not reverse the connection the reverse connection will cause the module to burn out Package includes 3 x Relay Module