5Pcs 5V 1-Channel H/L Trigger Optocoupler Relay Module For 
   
   Description:
   
   The module uses genuine quality relay, normally open interfaces
   Using SMD optocoupler isolation, driving ability, stable performance
   The module can be high or low by a jumper setting trigger
   Fault-tolerant design, even if the control line is broken, the relay will not operate
   The power indicator (green), the relay status indicator (red)
   The interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient
   
   Specification:
   
   Maximum load: AC 250V/10A, DC 30V/10A
   Trigger current: 5mA
   Working voltage: 5V
   Module size: 50 x 26 x 18.5mm (L x W x H)
   Four mounting bolts holes, diameter 3.1mm
   
   Module interface:
   
   DC+: positive power supply (VCC)
   DC-: negative power supply (GND)
   IN: can be high or low level control relay
   
   Relay outputs:
   
   NO: normally open relay interface
   COM: Common Interface Relays
   NC: normally closed relay interface
   
   High and low level trigger options:
   
   It is low level trigger when jumper connect to LOW pin
   It is high level trigger when jumper connect to HIGH pin
   
   Package included:
   
   5 x 1 Channel H/L trigger optocoupler relay module
     
   
   
   
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