A circuit breaker compartment, comprising: - one or more pole parts; and - a housing; wherein, each pole part comprises: - a vacuum interrupter comprising an insulating housing; - a first moveable contact; and - a second fixed contact; - and - a pushrod; wherein, the housing comprises: - a housing body part; - a first lid; and - a second lid; wherein, the first lid and/or second lid are configured to connect to the housing body part; wherein, a first end of each pole part is configured to connect to the first lid; wherein, a second end of each pole part is configured to connect to the second lid; wherein, in an assembled configuration: the first lid is connected to the housing body part; the second lid is connected to the housing body part; wherein, the first lid comprises one or more holes associated with the one or more pole parts and wherein the first end of each pole part comprises a portion that is configured to extend through a hole of the one or more holes in the first lid; characterized in that the first end of each pole part is connected to the first lid and the second end of each pole part is connected to the second lid to force such that the first lid and second lid are forced towards each other such that the housing provides a gastight and/or pressure resistant compartment, wherein the portion that is configured to extend through the hole of the one or more holes in the first lid comprises a threaded section, and wherein the connection of the first end of each pole part to the first lid comprises utilization of a nut that in the assembled configuration is positioned outside of the gastight and/or pressure resistant compartment. - one or more pole parts; and - a housing; wherein, each pole part comprises: - a vacuum interrupter comprising an insulating housing; - a first moveable contact; and - a second fixed contact; - and - a pushrod; - a vacuum interrupter comprising an insulating housing; - a first moveable contact; and - a second fixed contact; - and - a pushrod; wherein, the housing comprises: - a housing body part; - a first lid; and - a second lid; - a housing body part; - a first lid; and - a second lid; wherein, the first lid and/or second lid are configured to connect to the housing body part; wherein, a first end of each pole part is configured to connect to the first lid; wherein, a second end of each pole part is configured to connect to the second lid; wherein, in an assembled configuration: the first lid is connected to the housing body part; the second lid is connected to the housing body part; wherein, the first lid comprises one or more holes associated with the one or more pole parts and wherein the first end of each pole part comprises a portion that is configured to extend through a hole of the one or more holes in the first lid; the first lid is connected to the housing body part; the second lid is connected to the housing body part; wherein, the first lid comprises one or more holes associated with the one or more pole parts and wherein the first end of each pole part comprises a portion that is configured to extend through a hole of the one or more holes in the first lid; characterized in that the first end of each pole part is connected to the first lid and the second end of each pole part is connected to the second lid to force such that the first lid and second lid are forced towards each other such that the housing provides a gastight and/or pressure resistant compartment, wherein the portion that is configured to extend through the hole of the one or more holes in the first lid comprises a threaded section, and wherein the connection of the first end of each pole part to the first lid comprises utilization of a nut that in the assembled configuration is positioned outside of the gastight and/or pressure resistant compartment.