Four-way relay extended version 5V with optocoupler isolation support AVR/51/PIC microcontroller

4-channel relay output module, relay output contact 250A 10A. The input IN1, IN2, IN3, and IN4 signal lines are low and effective. VCC, GND power input terminals, can be separately powered by relays. Relay power input terminals JD-VCC.

Purpose:

1. Supports all microcontroller controls.

2. Industrial sector;

3. PLC control;

4. Home intelligent control;

[Functional Features]
Using high current relays, AC250V 10A  DC30V 10A
The contact part is independently wired, reliable
Standard interface, can be extended on various development boards
Equipped with fixed screw holes for easy installation
Suitable for various platforms such as 51/AVR/AVR/ARM

Module Description:
1. This module meets the standards and has isolation slots between the control area and the load area;
2. Adopting double-sided FR-4 circuit board design and surface mount technology production;
3. Adopting Songle relay control;
4. It has a relay action indicator, which lights up when it is engaged and does not light up when it is disconnected;
5. When there is a low-level signal at the signal input terminal, the common terminal and the normal terminal will conduct;
6. Relays can directly control various devices and loads;
7. There are 4 normally open and 4 normally closed contacts;
8. The blue KF301 terminal is more convenient for connecting control wires.
9. Module size: 75mm * 55mm * 18.5mm (length * width * height), net weight: 61g
10. There are 4 fixed bolt holes with a diameter of 3.1mm and a spacing of 68mm * 48mm
11. It is very convenient for finished products to pass functional and stability tests
Two module interface:
1. VCC: Connected to 5V power supply positive
2. GND: Connected to a 5V power supply negative
3. IN1-IN4: Signal trigger terminal, low level valid
Relay output terminal: There are 12 wire interfaces, and all interfaces can be directly wired out, making it convenient for users to use
1. NO1-- NO4: Relay normally open interface, suspended before closing the relay, short circuited to COM after closing
2. COM1-- COM4 relay common interface
3. NC1-- NC4: Relay normally closed interface, short circuited to COM before relay closing, suspended after closing