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8 Channel Relay Board is a simple and convenient way to interface 8 relays for switching application in your project. Input voltage level support TTL as well as CMOS. Easy interface with Microcontrollers based projects and analog circuits

The board works on 12V but the input signal can come directly from microcontroller output working at 3V or 5V to control relays. Each relay can switch varierty of AC or DC high voltage, high current loads working at 110V or 220V AC mains like lights, fans, motors and such. The status of relay is indicated by individual LEDs.

8 Relay Board PCB  Features:

·         Complete Output Isolation.

·         LED indication for relay & power supply. 

·         Design based on highly proven IC ULN2803 as driver 

·         Direct input from 3-5V microcontroller for relay control

·         High Current (8A) Capability.

·         AC or DC Operating Voltages.

·         No Leakage Current.

·         Eliminates costly isolation relays and wiring.

·         High quality PCB FR4 Grade with FPT Certified.


·         Input supply 12 VDC @ 336 mA

·         Output eight SPDT relay

·         Relay specification 5 A @ 230 VAC

·         Trigger level 2 ~ 15 VDC

·         Header connector for connecting power and trigger voltage

·         LED on each channel indicates relay status

·         Screw terminal connector for easy relay output and aux power connection


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