DROK 5V DC Relay Module 4 Channel with Optocoupler Protection

Feature:

Relay Output: Max  250A 10A

With high current relay, AC250V 10A  DC30V 10A

Contact independent wiring, safe and reliable

Standard interface, can be extended in a variety of development board

With screw holes for easy installation

Various platforms for 51/AVR/ARM

Module Size: 75mm * 55mm * 18.5mm

 The radius of the hole: 3.1mm

Hole spacing: 68mm * 48mm

Weight: 61g



Note:

1, NO1 - NO4: normally open relay interface：the relay suspending  before actuation,Relays short connect with COM after actuation.

2, COM1 - COM4 relay Common Interface

3, NC1 - NC4: normally closed relay interface： relay short  connect with COM before actuation. relay suspending  after actuation



Wiring:

1. VCC  :wire to 5V power supply positive

2.GND :wirie to  5V power supply negative

3. IN1-IN4: signal trigger, active low

4.Relay outputs: a 12-line interface, all interfaces can be directly wired leads, user-friendly



Package includes:

•1x 4 Relay Board