4 Pack 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger (5V)

Module description:

1.The module Operating voltage 5V;

2.Fault-tolerant design, even if the control line is broken, the relay will not operate;

3.The power indicator (green), the relay status indicator (red);

4.Module size: 50mm*26mm*18.5mm (L*W*H).

Interface:

-Input

VCC: Relay power supply +

GND: Relay power supply –

IN: Signal trigger input (High or Low Level Signal, select via jumper)

-Output

NO: Relay normally open.

COM: Relay Common Pin

NC: Relay normally closed.

High or Low Level Trigger Select:

1. Use High Level Trigger

When ¡°IN¡± input High Level Signal, the ¡°NO¡± connect with ¡±COM¡±

When ¡°IN¡± input Low Level Signal, the ¡°NC¡± connect with ¡°COM¡±

2. Use Low Level Trigger

When ¡°IN¡± input Low Level Signal, the ¡°NO¡± connect with ¡±COM¡±

When ¡°IN¡± input High Level Signal, the ¡°NC¡± connect with ¡°COM¡±

3. High or Low Level Trigger Select

Jumper connect with L, Low Level Trigger

Jumper connect with H, High Level Trigger

Package Included：

4 * 5V 1 Channel Relay Module