Coolwell Modbus RTU 32-Ch Relay Module RS485 Interface Built-in Protection Circuits Industrial-Grade with ABS Case

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Produktbeschreibung

  • Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
  • Features flash-on, flash-off function, it is possible to turn on the relay for a while and then close it automatically via the command
  • Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit

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