This relay module allows microcontrollers (Arduino, AVR, PIC, ARM, PLC, Raspberry Pi, etc.) to control high-current and high-voltage appliances safely. Each of the 8 relays supports up to 10A at 250VAC or 10A at 5VDC, making it suitable for industrial automation, smart home projects, and general appliance control.
The module uses opto-isolation and transistor drivers for safe switching, and includes status indicator LEDs for each channel.
8 independent relays (SPDT: 1 NO + 1 NC contact each).
Relay coil voltage: 5V DC.
Control input voltage: 1.0V–5V (compatible with 3.3V & 5V logic).
Maximum load:
AC: 250V / 10A
DC: 5V / 10A
Control signal indicators (LEDs).
Power supply indicator.
Opto-isolated inputs for MCU protection.
Pull-down circuits to prevent false triggering.
Screw terminals for easy wiring of load.
Isolation trenches between control and load sections for safety.
Channels: 8
Relay Type: SPDT (1C/O: Common, Normally Open, Normally Closed)
Input Voltage (Logic): 1.0–5V
Relay Operating Voltage: 5V DC
Max Switching Current: 10A
Max Switching Voltage: 250VAC / 30VDC
Driver Type: NPN transistor with flyback diode
Indicators:
Red LED for relay status (ON = active)
Power LED
Dimensions: ~13.8cm × 5.4cm × 1.8cm (typical for 8ch relay boards)
Mounting: 4 mounting holes
Isolation: Opto-isolator & trench separation for safe MCU interface
Home automation (lights, fans, pumps, etc.)
Industrial automation & PLC control
Smart home projects (IoT, Raspberry Pi, Arduino)
Remote appliance switching
Robotics & motor control
Power distribution panels
Disclaimer: Product specifications, weight, and performance may vary depending on batch and usage conditions. Always use with a protection circuit board.
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