This 4 Channel Relay Module (with light coupling) 12V module meet the safety standard as control areas and load area have the isolation groove. Optical coupling isolation module.
The triggering of 4 Channel RelayModuleis reliable, more stable. The double FR–4 circuit board design, high-end SMT process. It has power and relay operation instructions. Relays terminals (C, NC, NO) are accessible through screw terminals which makes wiring up the board very easy.
The inputs of 4 Channel 12VRelay Moduleare isolated to protect any delicate control circuitry.
A wide range of microcontrollers such as Arduino, AVR, PIC, ARM and so on can control it.
The use of such high-voltage relay eliminates the risk of heating up of the relay aselectromechanical relay limit the current consumption in accordance with a voltage rating.
Working voltage 12V --> Requires an external power supply to opperate the relays.
Includes optocouplers so that your Arduino or Raspberry Pi does not get damaged by reverse voltages.
Operating Voltage: 12V DC
Equipped with high-current relay: 10A@250VAC / 10A@30VDC
It can control both AC and DC appliances such as Solenoids, Motors, lights, fans, etc
High-quality screw terminals (Terminal Block) provided (C, NC, NO) for quick and easy connection
A freewheeling diode to protect your microcontroller
Input Signal Pin connected to Burg stick for easy accessibility
LED Status indicators to indicate the relay ON/OFF status
Mounting holes provided
The positive (according to the relay voltage VCC: connect power supply)
GND: connect power negative
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