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On the occasion of the InnoTrans Fair Schaltbau has launched a new safety contactor designed for use with control boxes. It combines the functions of the main contactor and the disconnecting and earthing device in one single high performance unit. A special mechanism provides a positive means of turning the power OFF by forcing the main contacts open even when they have become welded together. Thus, with the pantograph still raised to the catenary, the ZH2000 Series safety contactor allows for disconnecting individual electrical loads like inverters of motorised trains from the high-voltage power supply which remains available for all other loads in the train. This makes it possible for two maintenance teams to start working in parallel at the high-voltage system of the train and at facilities in the carriages with the hotel power uninterrupted and running. The result is a significant reduction in downtime.
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