8 Channel Relay 12V with Optocoupler Isolation Relay Module Geekcreit for Arduino - products that work with official Ard

Description 1 The module meets the international security standards and there are isolation grooves between the control area and the load area 2 Adopt double sided FR 4 circuit board design and high end patch technology 3 Use Songle genuine relay control 4 With relay action instructions suction and closure are bright disconnection is not bright 5 When there is a low level signal at the signal input the common terminal and the normal beginning will be connected 6 Relays can directly control all kinds of equipment and loads 7 There are 8 open and 8 closed contacts 8 Blue KF301 terminal connection control line is more convenient 9 Module size 138m 56mm 18 5mm length width height net weight 120g10 There are four fixed bolt holes with 3 1 mm spacing of 131 mm 49 5 mm 11 The finished product passes 100 functional test and stability test Module interface VCC Connect 12V power supply positive poleGND Connect negative pole of 12V power supplyIN1 IN8 Signal trigger low level effectiveRelay Output There are 12 wire interfaces all of which can be directly connected to lead out convenient for users to use NO1 NO8 Relay usually opens interface Relay is suspended before switching on and after switching on COM1 COM8 relay public interface is short connected with COM NC1 NC8 Normally Closed Interface of Relay Short Connection with COM before Relay Suction Suspension after Suction Package Included 1 x 8 Channel 12V Relay Module