Description: 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.
Connection
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.
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: 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.
Useful links |
Advantages
- Equipped with four relays JQC-3F with a coil powered by 5V.
- Optical isolation for enhanced work safety.
- Compatible with microcontroller ports and commissioning sets like Arduino, Raspberry Pi, and STM32 Discovery.
- Can control actuators consuming up to 10A of current.
- Simple connection with standard strap goldpin pitch of 2.54 mm.
- Versatile usage examples including light drivers, executors, and electric device switches.
- Supply voltage range for logic part: 3.3V - 5V.
- Enabled by low state for easy integration.
Disadvantages
- Some units may come scratched or missing components such as diodes indicating relay operation (as noted in one review).
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