12V 1 Channel Relay Module With Optocoupler ( Blue) Low Level Triger

1 Channel 12V Level Trigger Optocoupler Relay Module For Arduino

SKU: SLY3011-2 Category:

Product Description


  • Bidirectional isolation type 1-Channel relay control module, according to user needs, you can choose a high or low level to control the relay pull.
  • The module uses genuine high-quality power relay, high-quality subminiature package optocoupler, high power high voltage transistor, red and blue signal indicator, layout board considered comprehensive, stable performance, can be widely used in a variety of power control applications.
  • Normally open interface maximum load: AC 250V / 10A, DC 30V / 10A.
  • The use of high-quality ultra-small optocouplers, anti-interference ability, stable performance; trigger current only 3mA.

Module interface:

  • DC +: positive DC power supply;
  • DC-: DC negative supply;
  • VERF: photoelectric isolation control terminal reference ground, this signal should be connected to the user control panel power supply negative;
  • CH1: relay control interface, the high level (relative to VERF) corresponding relay pull;


  •  1 channel relay board
  • Operating Voltage 5V
  • Max Current : 20mA
  • Relay Contact Current Capacity at AC250V: 10A
  • Relay Contact Current Capacity at DC5V: 10A
  • One normally closed contact and one normally open contact
  • Triode drive, increasing relay coil
  • High impedance controller pin
  • Pull-down circuit for avoidance of malfunction
  • Power supply indicator lamp
  • Control indicator lamp
  • Indicator for Relay output status
  • Can Be controlled various appliances & other Equipment With Large current.
  • Standard TTL Level logic controlled (AVR, Arduino, 8051, PIC, ARM)
  • The module is compliant with international safety standards, control and load areas isolation trenches.
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