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        MDS1-1200/1500 high-voltage cut-off earthing switch
           Nominal voltage:                       DC 1500V
           Control voltage:                        DC 110V(auxiliary contact)
           Rated current:                         1200A
           Short-circuit current (non switching): 30kA,20ms
           Creepage distance:                      ≥40mm
           electric clearance:                    ≥20mm
         
           MDS1-1200/1500 metro high-voltage cut-off earthing switch is mainly used for connecting circuit formed by traction inverter and auxiliary inverter to coil-in DC power supply, and used for enabling high-voltage filter capacitor to discharge for safe routine maintenance in workshop. Under usual working condition, filter capacitor will discharge through such switch in accordance with train control means.
         
         
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