Grove - 2-channels relay with optoisolation - 10A/250VAC - coil 5V + clear case

Index: SEE-12626 EAN: 5904422319779

The module has two SRD-05 relays with the coil powered with the voltage of 5 V with optical insulation of input and mounting holes. The system allows you to control actuators using the microcontroller's ports or any development kit. It has slot from Grove series. The set includes transparent case and connecting cable.

Grove - 2-channels relay with optoisolation - 10A/250VAC - coil 5V + clear case
€9.35 tax excl.
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Manufacturer: Seeedstudio
Compatibility: Arduino Raspberry Pi


  • The supply voltage VCC 5 V
  • Activated by the low status
  • Relay: SRD-05VDC-SL-C (documentation)
    • Coil voltage: 5 V
    • The maximum voltage of contacts: 250 VAC, 30 VDC*
    • Maximum current: 10 A
  • Optoinsulation EL817 (documentation)
  • The dimensions of the board with the case: 110 x 60 x 35 mm
  • Diameter of mounting holes: 4 mm
  • The distance between the mounting holes: 95 mm and 39 mm


* Maximum contact voltage depends on the type of load - details inthe documentation, tab. 7. Contact Rating.


The module allows to control the actuators consuming the current up to 10 A using the microcontroller's port or any development kit (includingArduino,Rasbperry PiandSTM32Discovery). Optoinsulation separates the control signal from the part associated with powering the relay, thereby providing work safety of the management system. The set includes the Grove cable.



For the proper operation, it is sufficient to connect the power to the relay coil and the digital control signal. Pins are the standard Grove 4-pin cable that allows you to connect the relay to the Base Shield v2.0 board.

Przekaźnik 2-kanałowy Grove

The module has a case for self-assembly

The relay has the following pins

  • VCC- the power of the module
  • SIG1, SIG2- control inputs of the relay activated by the low status
  • GND- ground of the system, all the GND pins are connected together
  • KF (ARK) connectors- the relay contacts are connected in accordance with the pattern on the board of the module.

Examples of application

  • Driver of the lighting
  • The driver of the executive systems
  • Switch for electric devices, including motors


  • Relay module, 2-channel
  • Transparent case
  • Grove 4-pin cable
  • Mounting components
  • Installation manual

Channels 2
Interface Digital I / O
Package width 12 cm
Package height 5.1 cm
Package depth 6.5 cm
Package weight 0.152 kg

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Product reviews

Grove - 2-channels relay with optoisolation - 10A/250VAC - coil 5V + clear case


Average grade


Customers opinion
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and come from the post-purchase process.
Bram 16.02.2024 Confirmed purchase
Good product and an interesting transparant case.
Jacek 20.09.2022 Confirmed purchase Translated review
Outstanding quality. It fits nicely together. Suitable openings for cable outlet. The quality of the plexiglass is very good. Commissioning with ESP32 without a problem - good power supply is worth remembering - charger / power supply 2A (one of the better ones) and no problem.

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