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

With its single genuine relay and control and load area separation trenches, this 1 channel 12V 30A relay control board module complies with international safety regulations.

To safeguard any delicate control circuitry, the inputs of the 1 Channel 12V 30A Relay Module are separated.

Instructions for the relay, the power supply, and a disconnect are all off. The signal, common terminal, input signal, and conduct. It can operate with both DC and AC signals, allowing you to manage a 220V AC load, and it can be utilised as a single chip module for appliance control.

It can be controlled by a variety of microcontrollers, including Arduino, AVR, PIC, ARM, and others.

This module has a guide rail attached to the back of it, which allows us to move it to a more advantageous spot.

Note: On the high level and low level-triggered mode

• 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 away;
• 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 is a 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