4 Channel Optocoupler Isolator Module With LED Indicator For PLC Signals Level Shifter Converts 3.3V To 24V PNP NPN To NPN Anti Connection Protection High Reliability Industrial Grade Fits Standard Mounting Fast Switching Up To 20KHz

Single 4-Channel Optocoupler Module for PLC Signal Isolation
✔️ 4-channel optocoupler with LED indicators and reverse protection

This compact optocoupler photoelectric isolator module provides reliable signal isolation and level shifting between low-voltage controllers and PLC inputs. It’s ideal for converting 3.3V/5V logic signals to PLC-friendly levels (and vice versa) in industrial control panels and automation racks. Module size is 45x72x18 mm with mounting holes 40x37 mm for easy panel installation.

✅ 4-channel optocoupler module for signal isolation and level conversion
✅ Input options: NPN/PNP with 3.3V-24V ranges
✅ Output: NPN compatible PLC drive signals
✅ LED indicators show channel activity for quick diagnostics
✅ Power supply anti-connection protection and compact 45x72x18 mm body
✅ Mounting holes 40x37 mm for easy panel installation

💡 What is a handy way to use a 4-channel optocoupler module in PLC signal isolation projects? Here's a quick, practical answer:

- Handy for isolating microcontroller outputs from PLC inputs

- Provides reliable level conversion (3.3V/5V to 24V) and protection

- Simple panel mounting and fast switching up to 20 kHz