Change overs conform to IS:13947-3.

There are two types of OFF load changeovers namely Knife type and Lobular type. Knife type is simple in construction for easier maintenance. Lobular type design is rugged in construction with thick electrolyte copper contacts and phosphor bronze elements for increased contact pressure.

These switches are available in 2P, 3P & 4P versions. Knife type is available upto 400A and Lobular type is available upto 800A current rating.