Description �� AC 220V Optocoupler Isolation Module 1 Channel | AuscomTech This 1 channel optocoupler isolation module is designed to detect the presence of AC 220V and convert it into a low-voltage TTL output signal suitable for microcontrollers and control systems. It provides electrical isolation between the high-voltage AC input side and the logic output side, helping protect connected electronics while allowing reliable mains presence detection. Typical uses include AC power detection, PLC input interfacing, industrial monitoring, Arduino projects, and other control applications where a 3–5V TTL signal is needed from a high-voltage source. ⭐ Key Features 1 Channel Detection – monitors a single AC 220V input line and outputs a corresponding logic signal. Optocoupler Isolation – isolates the high-voltage side from the low-voltage control side for safer signal interfacing. TTL Output – output can be read by microcontrollers and other 3–5V logic systems. PLC 24V Compatible – can also be adapted for PLC 24V level applications as specified by the module design. Compact PCB – small board size makes it suitable for embedded and panel installations. Terminal Block Connections – screw terminals allow convenient field wiring. �� Technical Specifications Product Type: AC voltage optocoupler isolation module Channels: 1 Input Voltage: AC 220V detection Output Type: TTL level output Logic Voltage: 3–5V PLC Compatibility: 24V level applications supported Board Size: 73 × 15 mm Connection Type: Screw terminal blocks Isolation Method: Optocoupler �� Typical Applications AC mains presence detection Arduino and microcontroller input monitoring PLC signal interfacing Industrial control panels Power status sensing Automation projects Electrical monitoring systems ⚠️ Important Notes This module is intended for AC 220V sensing and must be handled with care. High voltage is present on the input side during operation. Ensure exposed conductors and terminals are fully insulated after installation. Wiring should only be carried out by suitably qualified persons. Always disconnect power before installation or maintenance. Check terminal polarity and wiring before connecting to a microcontroller or PLC input. �� Package Includes 1 × AC 220V 1 Channel Optocoupler Isolation Module �� Recommended Accessories (Not Included) Dupont jumper wires – for connection to development boards DIN rail enclosure or insulated case – for safer installation Arduino or ESP32 development board – for logic signal monitoring Screwdriver terminal wire kit – for secure power and signal wiring
