The Micrologic 5.0 X is an electronic control and tripping device used in the MasterPact MTZ circuit breakers with plug-in technology. It features adjustable long-time protection, short-time delayed protection, and instantaneous short-circuit protection. This control device is compatible with MTZ1 06 to MTZ1 16, MTZ 08 to MTZ2 40, and MTZ3 40 to MTZ3 63. MasterPact MTZ represents the latest generation of open circuit breakers up to 6300 A, integrating advanced digital technologies. It is designed to protect electrical installations from damage caused by overloads, short circuits, and earth faults. The Micrologic X control devices can be customized at any time with digital modules to add new protection, measurement, or diagnostic functions. They feature multiple communication channels, including Ethernet, Modbus SL, and wireless communication facilities. With the integrated HMI featuring a backlight, the Micrologic X allows for quick identification of alarm messages. The information processed by the Micrologic X can be displayed on the integrated HMI, on a smartphone via Bluetooth or NFC, and on a PC via the USB port. The protection functions can be configured through the integrated display, a smartphone via Bluetooth, or with a PC using EcoStruxure Power Commission, as well as through Ethernet and Modbus SL communication. MasterPact MTZ and Micrologic X are part of the EcoStruxure architecture system.