Dear Sir,

Shall i use Multicore cable (19C X 1 Sq.mm) for 4-20ma signal from Transducer to Scada Interface panel? Cable Length is maximum 50M.

 

Why not? According to my chart, 1 mm2 is a size somewhere between 18 and 16 AWG.

That's more than sufficient to 20mA over 50m.