SKU: TH1569
This 1 Channel 220V AC Detection Module is designed to detect 220V AC voltage signals and provide a safe, isolated low-voltage digital output using an optocoupler. It is ideal for industrial automation, home automation systems, PLC interfacing, and voltage monitoring applications.
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This 1 Channel 220V AC Detection Module is designed to detect 220V AC voltage signals and provide a safe, isolated low-voltage digital output using an optocoupler. It is ideal for industrial automation, home automation systems, PLC interfacing, and voltage monitoring applications.
The built-in optocoupler provides electrical isolation between the high-voltage AC side and the low-voltage DC control logic, making it an excellent choice for applications that require secure interfacing between different voltage domains like microcontrollers or PLCs
| Specification | Details |
|---|---|
| Input Voltage | AC 110V–250V (Standard 220V AC) |
| Output Signal | Digital Output (High/Low) via Optocoupler |
| Output Voltage | 3.3V or 5V logic compatible |
| Isolation Method | Optocoupler (Photocoupler) |
| Power Indicator | LED indicator for AC input detection |
| Output Interface | 3-pin terminal: VCC, GND, OUT |
| PCB Size | Approx. 60mm x 18mm |
| Mounting | Pre-drilled holes for easy mounting |
| Applications | PLC interface, home automation, industrial control, voltage monitoring |
| AC Input Side – 2-Pin Terminal Block | ||
|---|---|---|
| Pin | Label | Description |
| 1 | L (Live) | Connect to 220V AC Live wire |
| 2 | N (Neutral) | Connect to 220V AC Neutral wire |
| Low Voltage Output Side – 3-Pin Terminal Block | ||
|---|---|---|
| Pin | Label | Description |
| 1 | VCC | Power supply input (Connect to 3.3V/5V for MCU) |
| 2 | OUT | Digital output signal (Connect to IO pin of MCU or input of PLC) |
| 3 | GND | Ground (Connect to MCU or PLC GND) |
| Output Logic | |
|---|---|
| 220V AC Status | OUT Pin Level |
| AC Present | LOW (0V) |
| AC Absent | HIGH (VCC level: 3.3V / 5V / 24V) |
Wiring Methods for 1-Channel 220V AC Detection Module
| Mode | VCC | OUT | GND |
|---|---|---|---|
| MCU (3.3V or 5V) |
Connect to 3.3V or 5V | Connect to MCU IO Pin | Connect to MCU GND |
| PLC (NPN Mode – Sinking) |
Not Connected | Connect to PLC Digital Input (X or IN) | Connect to PLC GND (0V) |
| PLC (PNP Mode – Sourcing) |
Not Connected | Connects to PLC VCC+ | Connect to PLC Digital Input (X or IN) |
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