Casing of a circuit breaker, in particular of a circuit breaker for nominal currents above 250A

摘要

A casing of a circuit breaker for nominal currents above 250 A that enables at least one rigid busbar to be swung in to make contact with at least one switching pole attached in the casing. The casing may include a bottom section that cuboidally includes a rectangular base area and two rectangular side faces connected to the base area and running parallel to one another. Adjacent side faces are connected to one another via at least two stays which are arranged away from the opposing openings, delimited by the side faces, of the cuboidal bottom section, so that a switching pole can be inserted between the stays into the bottom section and so that a rigid busbar can be swung in at one of the two openings in order to make contact with the switching pole, when busbar and bottom section are each premounted, for example in a switching cabinet.