Modular telecontrol equipment

A telecontrol equipment item (10) is adapted to monitor the MV network (3) at the level of 5 a transformer substation and possibly control elements (5) thereof in the case of a fault. According to the invention, the equipment item (10) comprises means (400) for also monitoring the LV network (4). Preferably, the equipment item (10) comprises an LV monitoring module (400), a power supply module (100), a communication module (200) and an MV monitoring module (300i) for each line to be monitored. The different 10 components of the modules are optimized to be adapted to the networks (3, 4) on which the equipment item (100) is installed, and to allow for updates.