Allen-Bradley 1746-NT4 SLC 500 Thermocouple mV Input Module By wayne No Comments on Allen-Bradley 1746-NT4 SLC 500 Thermocouple mV Input Module 3 Min Read Buy the Allen-Bradley 1746-NT4 SLC 500 Thermocouple/mV Input Module. 4 channels for J, K, T, E, S, R, B, N sensors. Fast delivery from stock.