4 channel relay module with optocoupler Relay Output 4 way relay module for Arduino (with light coupling)
12V/24V
4-channel relay output modules, relay output contacts 250A 10A.
Input IN1, IN2, IN3, IN4, the signal line LOW effective.
VCC, GND power input, can relay a separate power supply relay power input of JD-VCC.
Uses:
1, Support all MCU control.
2, The industrial sector;
3, PLC control;
4, Smart home control
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