Allen-Bradley 1746-NT8 SLC 500 Thermocouple Input Module By wayne No Comments on Allen-Bradley 1746-NT8 SLC 500 Thermocouple Input Module 3 Min Read Buy the Allen-Bradley 1746-NT8 SLC 500 Thermocouple/mV Analog Input Module. Eight channels, sigma-delta conversion, and 16-bit resolution for precise temperature sensing.