Phoenix Contact PLC-OPT-120UC Optical Isolator

The Phoenix Contact PLC-OPT-120UC optical isolator provides galvanic isolation between PLC control electronics and field devices, transferring signals across an optical barrier to protect circuits from voltage transients and electrical noise. By isolating the control side from the field side, it helps prevent ground loops and interference from propagating into the PLC in typical industrial environments. The PLC-OPT-120UC is a model designed for PLC I/O applications, enabling safe data transmission across isolation boundaries in automation systems. This product is sold in a pack of 10 pieces, offering multiple identical units for multi-channel installations or periodic replacements. As a Phoenix Contact component, it aligns with common PLC wiring practices and supports straightforward integration into existing control architectures.