4 Bit Optocoupler Isolator Voltage Converter Board For PLC Signals 24V To 3.3V With 80KHz Conversion Frequency Size 72mm By 55mm By 18mm Mounting Holes Pattern 64mm By 47mm With 3mm Holes 4 Channel Level Shifter For Industrial PLC Interface

4-channel optocoupler PLC level shifter: 24V to 3.3V
✔️ 4-channel isolated 24V→3.3V, 80kHz, 72x55x18mm

This single-unit, 4-channel optocoupler isolator converts PLC 24V signals to 3.3V logic, delivering safe signal transfer and isolation for controllers and sensors in industrial automation.

✅ 4-channel optocoupler isolator converts 24V PLC signals to 3.3V logic
✅ 80 kHz conversion frequency supports fast PLC refresh
✅ Size 72mm x 55mm x 18mm; mounting holes 64mm x 47mm, 3mm dia
✅ PNPN to NPN level shifting for clean interfacing
✅ Ideal for industrial PLC interfaces and sensor connections

💡 What is an optocoupler isolator used for in PLC systems? An handy device that protects control logic while enabling safe signal transfer in industrial setups. - isolate control circuits from voltage spikes and ground loops - translate 24V PLC signals to 3.3V logic safely - improve reliability in harsh factory settings - support high-speed signaling for PLC interfaces