The present invention aims to provide a preservation device for electromechanical drive assembly, the assembly being provided with at least one electric drive, a first rotary axis, a mechanical drive, at least one access for electrical cabling, at least one electrical cabling , and at least a second rotary axis; the device comprising a housing, a container, a connector, housing fasteners and connector fasteners; the container comprising a first sidewall, a second sidewall, a lower structure, an upper structure and a bottom structure; wherein in the device: the first side wall of the container comprises, in an upper portion, a side opening and lateral fastening means; the bottom structure of the container comprises a bottom opening, bottom fixing means and fixing means of the device, wherein the bottom opening and bottom fixing means are arranged in a bottom bottom portion; wherein the connector is associated with the side opening through the connector fastening elements, the side fastening means and a sealing element.
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