Abstract: A gas-insulated switchgear bay includes at least three circuit breakers, which define a longitudinal direction, for interrupting conductor phases at different electrical potentials. The circuit breakers each have a first and second power connection, which define a first and second axis extending orthogonally to the longitudinal direction. A first busbar section is attachable to the first power connection, and the first busbar conductors thereof, each define a third axis, which extends orthogonally to the longitudinal direction and the first axis. A second busbar section is attachable to the second power connection, and the second busbar conductors thereof, each define a fourth axis, which extends orthogonally to the longitudinal direction and the first axis. A first distance between the first and second axes is such that the fourth axis is arranged with respect to position and orientation on a common straight line with the third axis in the second mounting state.

Abstract: A housing for a switchgear assembly module of a switchgear assembly forms a common gas space suitable for accommodating an insulating gas and three gas-insulated busbar nominal conductors of the switchgear assembly module. The housing includes three first busbar openings, which are arranged areally in a first opening plane and along a first straight line, three second busbar openings, which are arranged on a side, which is opposite the three first busbar openings, of the housing, and three outgoing conductor openings which are arranged areally in a second opening plane and along a second straight line.

Abstract: A switching chamber insulation arrangement and a circuit breaker having such a switching chamber insulation arrangement are provided. The switching chamber insulation arrangement provides improved heat dissipation in the area of the contact areas of switch contact poles. The switching chamber insulation arrangement includes a strut arrangement having a plurality of struts. Each strut has a first foot area, a second foot, area and a center area which is located between the first foot area and the second foot area, respectively. The struts are arranged along a circumference around a longitudinal extent axis of the strut arrangement. The strut arrangement has a first mechanical coupling area on a side of the first foot areas for coupling to a first pole of a circuit breaker, and a second mechanical coupling area on a side of the second foot areas for coupling to a second pole of a circuit breaker.

Abstract: A housing for a switchgear assembly module of a switchgear assembly forms a common gas space suitable for accommodating an insulating gas and three gas-insulated busbar nominal conductors of the switchgear assembly module. The housing includes three first busbar openings, which are arranged areally in a first opening plane and along a first straight line, three second busbar openings, which are arranged on a side, which is opposite the three first busbar openings, of the housing, and three outgoing conductor openings which are arranged areally in a second opening plane and along a second straight line.

Abstract: A switching chamber insulation arrangement and a circuit breaker having such a switching chamber insulation arrangement are provided. The switching chamber insulation arrangement provides improved heat dissipation in the area of the contact areas of switch contact poles. The switching chamber insulation arrangement includes a strut arrangement having a plurality of struts. Each strut has a first foot area, a second foot, area and a center area which is located between the first foot area and the second foot area, respectively. The struts are arranged along a circumference around a longitudinal extent axis of the strut arrangement. The strut arrangement has a first mechanical coupling area on a side of the first foot areas for coupling to a first pole of a circuit breaker, and a second mechanical coupling area on a side of the second foot areas for coupling to a second pole of a circuit breaker.