Module interface: -Input part:
VCC:connect to power positive (according to the relay voltage range) GND: connect to power negative IN: relay module trigger pin (high level trigger)
Normally Opened (NO) : normally open pin of relay. NO pin is not connect to COM pin when relay off.NO pin is connect to COM pin when relay on;
Common pin (COM) : Common pin of the relay;
Normally closed (NC) : normally close pin of relay.NC pin is connect to COM pin when relay off.
NC pin is not connect to COM pin when relay on;
The static current:4mA
Product introduction: 1. this module conform international safety standard, the isolation groove between control areas and load area;
2. with optical coupling isolation, triggering more reliable, more stable; , 3. the double FR-4 circuit board design; , 4. have power and relay operation instructions.The LED will be lit when relay on;
5. signal input with a high level signal, the common pin; , 6. relay can directly control all kinds of equipment and load;
7. one normally open pin and a normally closed pin; , 8. blue KF301 terminal, more convenient; , 9. module size: 53x18x18.5mm;
It's brand new, good quality & high performance. Free Shipping & the deliver time to USA is approx. 10-18 days after the shipment date.