Deepak instruments has developed line noise 3-phase filters available for inputs and outputs in ac motor drives of all national/international models.The company provides these unique coloured filters from 2 a to 120 a in closed version and also in open version which can work at 450 v. These filters for ac drives areavailable with salient features such as input filters for mains frequency and output filters of high frequency, complete encapsulation with metal cover provide full grounding and isolation between phases and insulator for screw terminal.