Electric powered mower unit (1) comprising a frame (13) provided with connecting points (132) arranged for attaching the mower unit (1) to a tool-carrier (3) provided with an electric power unit (31), several cutting modules (11), each cutting module (11) being suspended vertically displacea-ble and non-rotatable in a cutting module guide (122) provided in the frame (13), charac-5 tensed in that each cutting module (11) comprises a cutting disc (111) and an elec-tric motor (112) powered by the electrical power unit (31), said cutting disc (111) being attached to a motor driving shaft (1121), and a actuator (121) forming a link between the cutting module (11) and the frame (13).