Excelity Relay moudle is useful to control a motor, a led strip, or any other mcu module. Just connect a digital output of your microcontroller to the relay module, and you can control a power-demanding appliance with the digital signal provided by your microcontroller. Specification: -Control signal: TTL -Rated load: AC125~250V/10A, DC28~30V/10A -Max. switch voltage: 250VAC, 30V -Trigger Voltage: 0-1.5V (LOW); 2.5-5V (High) -Trigger Current: 2-4mA (Max. Load Current: 190mA) -Product Size: 50mm * 26mm * 18.5mm (1.9 inch *1.02 inch * 0.72 inch ) Here the introduce for input & out connection: 1)Input Connection: DC +: Positive power supply (VCC) DC-: Connect power negative ( GND) IN: Control the pick up of replay by low level or high level 2)Output Connection: Left Connection: “NO” means “Normally Open” Middle Connection: “COM” means “Common” Right Connection: “NC” means “Normally Closed” Here the introduce for how to set the "High and Low Level Trigger Effective": 1)High level trigger when the jumper cable connecting “High” to Short Circuit; 2)Low level trigger when the jumper cable connecting “Low” to Short Circuit; Here the introduce for LED Indicator Light: 1)Power Indicator: Green 2)Indicator of Relay Status: Red
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