The 9677.410 is a connection space cover manufactured by Rittal. This cover is made up of three different components, all of which are made from durable plastic: the space cover (which has NH1, NH2, and NH3 labels), the connection cover, and the external connection unit. This cover has multiple functions, including safe enclosing, protecting and isolating the internal connections, and providing ventilation for the drive components. The external connection units ensure the mounting from outside the enclosure and allow the use of dome nuts. This part is suitable for use in industrial electrical installations, as well as office systems.