It is a type of junction box used in mechanical and electrical engineering settings to manage and organize wiring connections, particularly in complex installations like theater stage machinery where rotational or moving parts are involved, such as a rotating stage (Drehübertrager, or rotary transducer).

Theater Stage Engineering:
In the construction of a theater, a "cassetta di giunzione di trasferimento" would be used to facilitate the organized transition of electrical and signal wiring from stationary infrastructure to moving platforms or parts of the set, such as a rotating stage floor....
This junction box ensures that all connections are securely managed and can handle the dynamic movement and rotation without risking disconnections or electrical faults.

Industrial Applications:
Similar setups might be seen in industrial environments where machinery parts move or rotate, requiring a reliable system to manage electrical connections through junction boxes that accommodate movement and prevent cable stress.