Relay Module 24V (4 Channels)

The module is equipped with four relays with a coil powered with a voltage of 24 V with optical isolation of input and mounting holes. The system allows you to control actuators with microcontroller ports or any commissioning set.

Description: Relay module 4 channels with optoisolation – 10A / 250VAC contacts – 24V coil

The module allows to control the actuators consumming current of up to 10 A using the microcontroller’s ports or any commissioning set (including Arduino, Rasbperry Pi and STM32Discovery). Optical isolation seperates the control signal from the part associated with the power relay, thereby providing work safety of the control system.

Connection

Connecting the power to the relay coil and the digital control signal are enough for proper opertaion. Leads are the standard strap goldpin pitch of 2.54 mm which enables connecting via connecting cables.

The relay has the following leads:

• VCC– power of optical isolator.
• JD-VCC – the power of relay coil, by default connected with the VCC through a jumper.
• IN1, IN2, IN3, IN4 – control inputs of relays attached by the low state.
• GND– ground of the system, all GND leads are connected with each other.
• Connectors KF (ARK)– the relay’s contacts are connected in accordance with the pattern on board of the module.

Examples of usage

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

Specification of Relay module 4 channels with optoisolation

• Supply voltage of a logic part: 24 V
• Enabled by low state
• Relay:
  • Coil voltage: 24 V  –> Requires an external power supply to operate the relays.
  • Maximum current: 10 A
• Optical isolation EL817 (documentation)  so that your Arduino or Raspberry Pi does not get damaged by reverse voltages
• Board size 76 x 58 mm
• Diameter of mounting holes: 3 mm
• Distance between holes: 68 mm and 47 mm

* Maximum contact voltage depends on the type of load – details in the documentation Contact Rating.