Relay module 1 channel - 3A/250VAC contacts - 5V coil

Index: OST-14297 EAN: 5903351241892

The module is equipped with HK4100F relay with the voltage of 5 V. The system allows you to control the actuators with a voltage of 250 V AC / 30 V DC, using the ports of the microcontroller or any development kit. Controlled with the high status.

Relay module 1 channel - 3A/250VAC contacts - 5V coil
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Manufacturer: OpenPlatform

Product description: 1-channel relay module - contact of 3A/250 VAC. AC / 30V DC coil 5V

The module allows to control the actuators consuming the currentup to 3 Athrough the port of the microcontroller or any development kit (includingArduino,Rasbperry PiandSTM32Discovery). RelayHK4100Fwith a coil powered with the voltage of 5 V.

Moduł przekaźnika 1 kanał

The connection of the relay module

For proper operation, it is sufficient to connect the power of the relay coil and the digital control signal. Pins are the standard goldpin straps with the pitch of 2.54 mm, which enable the connection using the popular connecting cables.

Moduł przekaźnika 1 kanał

The relay has the following pins

  • VCC- power of the optocoupler
  • DAT- control input of the relay, activated by the high status
  • GND- ground of the system, all the GND pins are connected together
  • connectors KF (ARK)- relay contacts


Examples of the application of the relay

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

Specifications of the relay module

  • The VCC supply voltage: 5 V
  • Activated by the high status
  • Relay: HK4100F-DC5V-SHG (documentation)
    • Coil voltage: 5 V
    • The maximum voltage of contacts: 250 VAC, 30 VDC
    • Maximum current: 3 A
  • Board sizes: 41 x 26 x 15 mm
  • Diameter of mounting holes: 3 mm


Package width 3.5 cm
Package height 5 cm
Package depth 1.8 cm
Package weight 0.01 kg

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Product reviews

Relay module 1 channel - 3A/250VAC contacts - 5V coil


Average grade


Customers opinion
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Andrzej 05.02.2024 Confirmed purchase Translated review
Very good execution. Works flawlessly.
Marcin 27.03.2023 Confirmed purchase Translated review
A very compact relay module, ideal for use with breadboards.

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