The order for KGHM SA, consisted of modernization of withdrawable modules of the RD-1 switchgear. The units have been equipped with e²BRAVO vacuum circuit breakers and a set of interlocking compatible with the modernized bays. Thanks to this, the modernized RD-1 switchgear significantly increased the operational safety and reliability of work. The replacement of withdrawable modules has been made without interfering with the construction and control circuits of the switchgear and with the use of driving, insulating and connecting elements from the modernized element. The exchange could be carried out without the switchgear being switched off, which ensured the continuity of the plant’s operation.