Relay module 4 channels with optoisolation - 10A/250VAC contacts - 5V coil

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

Connecting the power to the relay coil and the digital control signal are enough for proper opertaion. Leads are the standardstrap 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. To control the voltage of 3.3 V, disconnect the jumper, to the pin JD connect the power to the coil 5 V and to the VCC connect the voltage of 3.3 V.
• 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.

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

• Supply voltage of a logic part: 3.3 V - 5 V
• Enabled by low state
• Relay: JQC-3F (documentation)
  • Coil voltage: 5 V
  • The maximum voltage of contacts: 250 V AC, 110 VDC*
  • Maximum current: 10 A
• Optical isolation EL817 (documentation)
• Board size 75 x 55 mm
• Diameter of mounting holes: 3 mm
• Distance between holes: 68 mm and 48 mm

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

• Documentation of the relayJQC-3F
• Documentation of the optical isolator EL817
• Example of connecting the relay to the Raspberry Pi