SHELL FOR A ROTATING ELECTRICAL MACHINE

The present invention refers to a fastening system for fastening a terminal box (2) to the housing (1) of an electrical machine. More specifically, the present invention refers to a fastening system having a simple and efficient construction that allows the fitting between the lower part (3) of the terminal box (2) and a receiving portion (10) of the housing and the fastening of the terminal box (2) to the housing using a single screw (9). In one embodiment of the present invention, the terminal box (2) receives a terminal board (7). In this embodiment, for fastening the box, the screw (9) is received by the screw receiving hole (8) of the terminal board (7), passes a screw through hole (6) of the lower box part (3) and connects a screw connection hole (12) of the receiving portion (10) of the housing (1). The present invention also related to a new sealing between the upper box part (4) and lower box part (3) of the terminal box, which is achieved by a pressure sealing staggered geometry.