12V 8 Channel Relay Module with Light Coupling Low Level Trigger Optocoupler
$2.93
♦ Specifications
Number of channels : 8
Operating voltage : 12V
Max. current : 20mA
Trigger voltage : 12V
Switching voltage : 250V at 10A
Equipped with high-current relay
It can control both AC and DC appliances such as Motors, lights, fans, etc.
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Description
This is a 12V 8-Channel Relay interface board, can control various appliances and other equipments with large current.
It can be controlled directly by Micro-controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
Technical data
12V relay 250V 10A
Input low level effective.
Input sign.
GND power supply.
VCC signal power supply.
IN1, IN2, IN3, IN4, IN5, IN6, IN7, IN8 line
JD-VCC relay power supply.
Meaning of High level and Low-level
High-level trigger refers to using the anode voltage at the VCC connection way of a trigger and triggers the end when the trigger side has the positive voltage or to trigger voltage when the relay is off.
Low-level trigger refers to using the negative voltage at the GND connection way of a trigger and triggers the end when the trigger side has 0 v low voltage or voltage to can trigger, the relay is off.
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