Micrologic 5.0E (Energy meter) is an electronic control unit used on Compact NS630b to NS3200 fixed circuit breakers. This control unit has a selective protection (LSI) and is designed to protect power circuits and loads. It embeds adjustable long time protection against overloads. It provides also adjustable short-time protection and instantaneous protection against short-circuits. Micrologic 5.0E indicates overloads with an Alarm LED. It is able to display the trip cause through 3 others LEDs. Micrologic 5.0E is equipped with a digital LCD screen that displays the active energy with 2% accuracy. This control unit can be associated with fixed Compact NS basic frame.