3-Channel 220V AC Optocoupler Isolation Detection Module

The 3-Channel 220V AC Optocoupler Isolation Detection Module is an essential industrial-grade sensing board designed to detect the presence of 220V AC mains voltage across three independent channels, translating them into safe, isolated digital signals. Perfect for complex industrial environments and advanced DIY automation, it safely bridges multiple high-voltage AC lines with low-voltage microcontrollers or PLCs without risking damage to your sensitive electronics.

Widely utilized in smart home monitoring, multi-point industrial PLC control systems, and comprehensive mains power failure detection arrays, this 3-way module is fully compatible with 24V PLC systems as well as standard 3.3V or 5V microcontrollers like Arduino, Raspberry Pi, and ESP32. The onboard optocouplers ensure complete galvanic isolation for each channel, while the robust screw terminals allow for secure, organized wiring into your custom circuit diagram or control cabinet.

Features:

• 3 Independent Channels: Monitor up to three separate 220V AC lines simultaneously on a single, compact board.
• Galvanic Isolation: Uses high-quality optocouplers to safely isolate high-voltage AC inputs from low-voltage logic outputs.
• Broad Compatibility: Output signals can interface directly with 3.3V, 5V (Arduino/ESP32), or 12V/24V (PLC) logic systems depending on the supplied VCC.
• Visual Indication: Features onboard green and red LEDs for each channel to easily and immediately indicate the input and output status of the AC voltage.
• Secure Connections: Equipped with robust screw terminals for both the 220V AC inputs and the logic side connections.

Package Includes:

1 x 3-Channel 220V AC Optocoupler Isolation Detection Module