2 Channel Relay Module With Optocoupler Isolation High

Feature:

• 
  
  Using SMT optocoupler isolation, it has strong driving ability and stable performance; trigger current is 5mA;
  
  
• 
  
  Modules can be triggered by setting high or low levels through wire jumper.
  
  
• 
  
  Fault-tolerant design, even if the control line is broken, the relay will not move.
  
  
• 
  
  The interface design is humanized. All interfaces can be directly connected through the terminal, which is very convenient.
  
  
• 
  
  Equipped with 4 fixed screw holes, easy to install.
  
  

Specification:


Channel: 2


Product dimension: 50*41*18.5mm / 2*1.6*0.7in


Power light: Green


Relay light: Red

Board color: Red

Package list:


1 * Relay Module





Note:


Module interface:


1. DC+: Connect the positive pole of the power supply


2. DC-: Connect power supply negative pole


3. IN1:1 signal trigger terminal, can set high or low level control relay suction


4. IN2:2 signal trigger terminal, can set high or low level control relay suction





Relay output:


1. NO1: 1 channel relay usually opens the interface. The relay is suspended before suction and short-connected with COM1 after suction.


2. COM1: 1 channel relay common Interface


3. NC1: 1 channel relay normally closed interface, short connection with COM1 before relay suction, suspension after suction


4. NO2: 2 channel relay often opens interface. The relay is suspended before suction, and is short-connected with COM2 after suction.


5. COM2: 2 channel relay common interface


6. NC2: 2 channel relay normally closed interface, short Connection with COM2 before relay suction, suspension after suction.





High and low level trigger selector:


1. S1 is the trigger selection of high and low level 1 channel relay.


2. S2 is the trigger selection of high and low level 2 channel relay.


3.com and low short connection, the corresponding relay is low-level trigger, com and high short connection is high-level trigger.