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Small green circuit board with two blue relay blocks and pin headers

Traditions (Generic)

Traditions (Generic) 2-Channel 5V Relay Module with Optocoupler

SKU CH-DM0C-73EZX

A 5 V, two-channel relay board with optocoupler isolation for PLC and micro-controller switching

  • Optocoupler isolates control circuit from load
  • Two independent channels switch separate circuits
  • 5 V logic compatible with microcontrollers
  • Suitable for PLC and automation panels

2-Channel 5V Relay Module with Optocoupler

This module provides two independent relay channels driven by a 5V control signal. An on-board optocoupler isolates the low-voltage logic side from the switched load circuit. It is intended for hobbyists, students and engineers building PLC-style control panels or experimental automation projects. The compact board mounts directly into prototype enclosures or DIN-rail carriers.

Who this suits and who should look elsewhere

Makers who need galvanic isolation for two 5V-switched loads will find the board convenient. Buyers requiring more than two channels, a different coil voltage or higher contact ratings should consider other modules that match those specifications. Applications demanding certified industrial safety ratings or pre-wired terminal blocks are also outside the scope of this bare PCB assembly.

Highlights

  • Optocoupler isolates control circuit from load
  • Two independent channels switch separate circuits
  • 5 V logic compatible with microcontrollers
  • Suitable for PLC and automation panels

Specifications

No published specifications for this item yet.

Questions about this item

How can I verify the 5 V relay module is switching correctly after wiring it up?

Apply 5 V to the VCC and GND pins, then drive each IN pin low; you should hear the relay click and see the corresponding LED light, while a multimeter on the NO-COM contacts shows continuity.

What comes in the box with the 2-channel relay board and what must I source separately?

The board itself is supplied; you will need to provide a 5 V power supply, control signals (for example from an Arduino or PLC), and screw-terminal wiring for the load circuits.

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