A pole part (1) of a low-, medium- or high voltage circuit breaker arrangement comprising a pole housing (3) for accommodating a vacuum interrupter (4) with a pair of corresponding electrical contacts (5, 6), wherein a fixed electrical contact (5) is connected to an upper electrical terminal (9) and a movable electrical contact (6) is connected to a lower electrical terminal (7) and operated by a pushrod (8), and a triggered -vacuum gap or -gas gap or the combination of gas and vacuum gap connected in sereies unit (2) is parallel connected to the electrical contacts (5, 6) in order to avoid contacts welding, wherein the triggered vacuum gap or gas gap unit (2) is removable mounted between the upper electrical terminal (9) and the lower electrical terminal (7) arranged adjacent to the pole housing (3). Furthermore there is the possibility to trigger directly the vacuum interrupter device to get a similar effect to protect the vacuum interrupter device from inrush current load during the closing operation especially during capacitive switching.