Relay 2channel 5 V


  • Relay Maximum output: DC 30V/10A, AC 250V/10A
  • 2 Channel Relay Module with Optocoupler LOW Level Triger expansion board, which is compatible with arduino
  • Standard interface that can be controlled directly by microcontroller ( 8051, AVR, *PIC, DSP, ARM, ARM, MSP430, TTL logic)
  • Relay of high quality loose music relays SPDT. A common terminal, a normally open, one normally closed terminal
  • optocoupler isolation, good anti-jamming


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VCC: Connected to a positive supply voltage (supply power according to relay voltage)
GND: Connected to a negative supply voltage
IN1: Signal triggering terminal 1 of a relay module
IN2: Signal triggering terminal 2 of the relay module


Each submodular of the relay has one NC(nomalclose), one NO(nomalopen) and one COM(Common). So there are 2 NC, 2 NO and 2 COM of the channel relay in total. NC stands for the normal close port contact and the state without power; No stands for the normal open port contact and the state with power. COM means the common port. You can choose NC port or NO port according to whether power or not.


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