The Yokogawa AAI141-H50 is a single-channel, DC input isolating safety barrier. Its primary function is to protect hazardous areas by limiting the energy (voltage and current) that can reach field devices, ensuring intrinsic safety. It converts input signals from field devices like 4-20 mA analog transmitters (2-wire) into isolated and amplified output signals for the control system in the safe area. The "-H50" suffix indicates a high-density model designed for efficient mounting on a 50mm DIN rail.
