The E4-series is a standardized device series for the power distribution offering the basic requirements for a smart energy distribution grid. The core element of those smart energy distribution grids is the recording and evaluation of performance data. The E4 products offer the opportunity to record the data easily and conveniently. Years of experience and technical specification have gone into the development of this series in order to achieve the optimum result in terms of technical values and safety. A perfect interface for your energy distribution which can be upgraded to the various requirements at a later date.