4 Channel Optocoupler Isolator Module With Level Converter For PLC Signals, PNP NPN To PNP, 12V To 3.3V, Anti Connection Protection, High Speed Up To 20Khz, 45x72x18mm, Plug And Play DIY Automation
✔️ 4-channel optocoupler with 3.3/5/12V level conversion, 20kHz, 1pc
The block is a compact 4-channel optocoupler isolator designed to provide electrical isolation and level shifting between controllers and field devices. It’s a handy choice for interfacing microcontrollers or PLCs with sensors, relays, and other automation hardware.
✅ Isolates control and input signals between MCU and PLC
✅ Supports 3.3V/5V/12V/24V level conversions for multiple input/output combos
✅ Anti-connection protection on the power supply prevents mis-wiring
✅ High-speed operation up to 20kHz for fast switching
✅ Compact 45x72x18mm body with 40x37mm mounting holes
💡 What is a 4-channel optocoupler isolator module used for in PLC and microcontroller projects?
Handy device to safely interface controllers with industrial signals, providing isolation and level shifting.
- isolation between controller and field devices
- supports multiple input/output level conversions (3.3V/5V/12V/24V)
- high-speed switching up to 20kHz for real-time control