We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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.

How it compares

Measured against everything we stock in PC Power Cables, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 85% of the 1,029 comparable items (median $15.99).

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

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.

More in PC Power Cables

Similar items