Molded case circuit breaker fastening cover with centered handle

The utility model relates to a molded case circuit breaker fastening cover with a centered handle, which comprises a large cover, a flip cover, a handle and a lever. The lever is inverted-U-shaped and the bottom of the lever extends and protrudes outwards. The handle is platy and arc-shaped, a handle part extends outwards from the arc top of the handle along a radial direction and at least one L-shaped or U-shaped guide rail which extends along the axial direction of the circular arc of the handle is arranged on the internal side of the circular arc. Bulges on the lever can relatively slide along the guide rails of the handle. After the fastening cover is assembled, the moving range of the handle relative to the lever in the tangent direction of the circular arc is very small, the handle can slide towards the middle of the large cover along the axis of the bulges relative to the lever to enable the handle part of the handle to be in the middle of the large cover in the direction, the circular arc surface of the handle is arranged between the insulating baffle and the shading plate of the large cover, the lever, the handle and the large cover are integrally connected and therefore the fastening between a base and the large cover is facilitated. The operating hole of the flip cover is arranged in the middle of the flip cover, after the flip cover is connected with the large cover, the handle part of the handle is arranged in the middle of the entire molded case circuit breaker fastening cover, therefore the handle is more convenient to operate and the appearance is more attractive.