Relays module, 8 channels with opto-isolation - 10A/250VAC contacts - 5V coil - blue

Index: MOD-02966 EAN: 5904422300531

The module has eight relays SRD-05 with coil powered with a voltage of 5 V along with optoelectronic isolation. The system allows you to control actuators with microcontroller ports or with any starting set.

Relays module, 8 channels with opto-isolation - 10A/250VAC contacts - 5V coil - blue
€5.28 tax excl.
Delivery 180 pcs scheduled for 2024-06-10
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Manufacturer: OEM

Description: Relays module, 8 channels with opto-isolation  - 10A / 250VAC contacts - 5V coil - blue

The module allows to control the actuators consuming the current up to 10 A using the microcontroller's ports or any starting set (includingArduino,Raspberry PiandSTM32Discovery). Optical isolation seperates the control signal from the part associated with the power of relay, thereby providing safety of the control system's work.

 Relays module, 8 channels with opto-isolation  - 10A / 250VAC contacts - 5V coil - blue


The product is compatible with Arduino

For relay control, a digital signal controlled from leads of the Arduino, is enough.



For proper operation, it is sufficient to connect the power of the relay coil and the digital control signal. Leads are the standardstrap goldpin with raster of 2.54 mm, which enables connection through the connecting cables.

The relay has the following leads:

  • VCC- power of optical isolator
  • GND- mass of system
  • IN1 ... IN8 - controlling inputs of the relays, activated by low state
  • The jumper JD-VCC - connects the power of the relay's coil with opitical isolator's power
  • Connector KF (ARK)- the relay's contacts connected in accordance with the pattern on plate of the module.


Examples of application

  • Driver of lighting
  • The driver of executors
  • Switch for electric devices, including motors


  • The supply voltage VCC: 5 V
  • Activated through low state
  • The control signal: min 3.3 V
  • Relay JQC-3FF-S-Z (documentation)
    • Coil voltage: 5 V
    • The maximum voltage of contacts: 250 V AC, 110 VDC*
    • Maximum current: 10 A
  • Optoelectronic isolation
  • 8 leds signalizing the activation of relay
  • Tile sizes 139 x 55 mm
  • Weight: 118 g
  • Diameter of mounting holes: 3 mm


* Maximum contact voltage depends on the type of load - details inthe documentation, tab. Contact Data.



Channels 8
Interface Digital I / O
Test 3
Package width 8.5 cm
Package height 1.8 cm
Package depth 18.5 cm
Package weight 0.095 kg



Question: Please let me know what is the actual dimension of the board and the spacing of the mounting holes. I ask because I have prepared stands for TH35 and I noticed that the modules come in similar, but still different dimensions
Answer: Plate dimensions: 57 x 138 mm
Mounting hole spacing: 50 x 132 mm

Product reviews

Relays module, 8 channels with opto-isolation  - 10A/250VAC contacts - 5V coil - blue


Average grade


Customers opinion
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Robert 04.03.2024 Confirmed purchase Translated review
I recommend
Damian 08.08.2023 Confirmed purchase Translated review
it works
Jarosław 12.06.2023 Confirmed purchase Translated review
I recommend
Julia u. 01.06.2023 Confirmed purchase Translated review
Top! Would do it again
Dawid 23.10.2022 Confirmed purchase Translated review
According to the photo.
Łukasz M. 07.03.2022 Confirmed purchase Translated review
It's ok works with Rpi 4.
Radosław S. 09.02.2022 Confirmed purchase Translated review
extra for smart home diy fans
Damian B. 04.12.2021 Confirmed purchase Translated review
Not tested yet at 230V, but at 24V it works for sure.
JAN B. 19.11.2021 Confirmed purchase Translated review
Good strong relays.
Tomasz K. 19.09.2021 Confirmed purchase Translated review
Tomasz B. 03.02.2021 Confirmed purchase Translated review
I am going to use LED lighting to control.
Dariusz 07.07.2023 Confirmed purchase
Paweł 27.11.2022 Confirmed purchase

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