5V 12V Relay Module 1 Channel Low Level Trigger Board Shield with Optocoupler Relay Output for PIC AVR DSP ARM MCU Arduino

Product description:
1. The module complies with international safety standards, control area load area isolation groove;
2. Genuine relay Songle; 

3. With the power and relay action instructions, pull bright disconnect does not shine;

4. When a signal in the signal input terminal, the common terminal and the normally start conduction;

5. Microcontroller development board can be used as a module that can be used as a home appliance control;

6. The control of the DC or AC signal, can control 220V AC load;

7. There is a normally open and a normally closed contact;

8. Blue KF301 terminals to the line of control is more convenient.

Power supply voltage: 5V 12V
Trigger: High level trigger / Low level trigger
Static voltage: 0ma
Load voltage: AC 250V/10A; DC 30V/10A
Maximum working current: 3.8mA
Module life: 10 million times
 

Description of the high and low trigger, friends do not understand Take a look at:

- High level trigger is a trigger voltage between the signal input and ground can be understood as a way of the signal input terminal and VCC cathode short trigger;

- Low trigger means is the voltage between the signal input terminal and the ground for the OV trigger mode can be understood as a way of the signal input terminal and GND negative short trigger