Product description:
1 channel relay module
1 Dimensions: 50.5mm (length) * 38.5mm (W) * 18.5 (H)
2 Weight:. 31g
3.PCB Color: Black
4 board four weeks with four screws holes, hole diameter 3.1mm, easy to install and fixed
5 relay of high quality loose music relays SPDT. A common terminal, a normally open, one normally closed terminal
6 optocoupler isolation, good anti-jamming
7 low pull, high release. Energisation status indicator light, release status LED is off
8.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 Wiring: VCC: positive power supply system GND: System power negative IN1 - IN2: relay control ports4-channel relay output modules, relay output contacts 250A 10A. Input IN1, IN2, IN3, IN4, the signal line LOW effective. VCC, GND power input, can relay a separate power supply relay power input of JD-VCC.
Uses:
1, support all MCU control.

2, the industrial sector;

3, PLC control;

4, smart home control
8 channel relay module
Features
Using high-current relay , AC250V 10A DC30V 10A Contact some independent wiring , safe and reliable Standard interface , can be extended in a variety of development board With fixed screw holes for easy installation Suitable for a variety of platforms such as 51/AVR/AVR/ARM Module Description :1 , the module complies with international safety standards , the load control area and regional isolation tank ;2, using double-sided FR-4 circuit board design, high-end chip production process ;3, using loose music authentic relay control ;4, with the relay instructions , pull off, disconnect does not shine ;5, the signal input has a low signal , often beginning with a common terminal will be turned on ;6 , the relay can control the various devices and the load ;7 , 8 and 8 normally open normally closed contact ;8 , blue KF301 terminals to the control line is more convenient.9 , Module size : 138m * 56mm * 18.5mm ( L * W * H ) , Weight : 120g10 with 4 fixing bolt holes , hole 3.1mm, pitch 131mm * 49.5mm11 , finished by 100% functional testing and stability testingTwo module interface :1, VCC: 5V power supply connected to the positive2, GND: 5V power supply connected to the negative3, IN1-IN8: trigger signal , active lowRelay outputs : a 12- line interface, the interface can be directly connected to all leads , user-friendly1, NO1 - NO8: normally open relay interfaces , relay before the vacant after the pull shorted with COM2, COM1 - COM8 Relay Common Interface3, NC1 - NC8: normally closed relay interface relay shorted with COM ago , after the pull- vacant