1 Channel Relay Module, 30A with Optocoupler, Isolation 12V Supports, High and Low Triger

This 1 channel 12V 30A relay control board module with optocoupler modules is compliant with international safety standards, control and load areas isolation trenches it has a single relay a genuine.

The inputs of 1 Channel 12V 30A Relay Module are isolated to protect any delicate control circuitry.

It can be used as a single chip module for appliance control and work with both DC or AC signals where you can control the 220V AC load.

Note: On the high level and low level-triggered mode, friends who do not understand, have a look

• High-level trigger refers to the signal voltage between input and trigger, can be understood as a signal input with VCC cathode short-circuit triggered a way;
• Low-level trigger refers to the signal voltage between the input terminal and Earth OV trigger, can be understood as a signal input terminal and the GND negative electrode short circuit triggered isa way 1-channel relay module connection.

Features :

1. High impedance controller pin
2. Pull-down circuit for the avoidance of malfunction
3. One normally closed contact and one normally open contact
4. Triode drive, increasing relay coil
5. Power supply indicator lamp
6. Control indicator lamp
7. With 4 fixed screw holes, hole diameter 3.1mm, convenient installation, and fixation