Double Break Dicconnector/ Isolators can be suitable for all typical substation layouts, which have minimal overhead clearance, as blade is designed to apply the contact pressure fully with the closing operation and release the contact pressure before the moving blade starts opening. Double break disconnectors/Isolators are normally supplied with earth or without earth switch based on the requirement and they can be either with mechanical gang or with electrical gang operation in order to ensure the smooth operation of all the three poles simultaneoulsy. They are excellent for installations, which have large amount of fault cur¬rent due to reverse loop contact design. The design of two breaks per phase in series provides much greater line charging or magnetizing current interrupting capability with standard arcing horns.