FEMS Energy Meter Packages Here you will find installation and configuration manuals for the Energy Meter Packages offered by FENECON. Installation and Config Manuals FEMS Package 3-Phase Sensor without Current Transformer (SOCOMEC DIRIS A-10) FEMS Package 3-Phase Sensor 80 A (SOCOMEC E23/E24) FEMS Package 3-Phase Sensor without Current Transformer (KDK 2PU CT) FEMS Package 3-Phase Sensor 65 A (KDK 4PU)