4 Channel Relay Module Relay Expansion Board output 4-way outpu Relay

4 channel relay module relay expansion board for arduino 5V low level triggered 4-way relay module

Details:

1. PCB Color: Black
2 board four weeks with four screws holes, hole diameter 3.1mm, easy to install and fixed
3 relay of high quality loose music relays SPDT. A common terminal, a normally open, one normally closed terminal
4 optocoupler isolation, good anti-jamming
5 low pull, high release. Energisation status indicator light, release status LED is off
6. VCC of system power, JD_VCC relay power. You can plug in jumpers

Electrical parameters:
Supply voltage: 5VDC, 12VDC
Current: more than 100mA
Load: 250V 10A AC or 30V 10A DC