PLI - Power Line Carrier Interface


nVent RAYCHEM power-line carrier interfaces (PLI) modules provide temperature-monitoring capability for the RAYCHEM NGC-30 heat tracing control and monitoring unit. The PLI receives input from the power wires for the heat tracing circuits, which carry the signals from special transmitters. The transmitters provide pipe temperatures from RTDs and continuity confirmation; they are typically located at the unpowered end of the heat tracing line.


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