Origin	China
Model Number	EMD6
Brand Name	VMD

Earthing switch EMD6
1 same to ABB's EK6
2 as our new product, its outside shape and  technical parameters perfectly match EK6

Earthing switch EMD6 is our new product, it outside shape and technical parameters perfectly match EK6.

Working Principle

When operate driving mechanism to close earthing switch, applied moment gets principle axis to overcome drag torque, to spur console panel to turn under the closing direction, and gets moving contacts rocker to via spring dead point, and then spring will release energy, to close earthing switch quickly. In closing position, moving contact firmly connected with fixed contacts flange part.

When openning, applied moment gets principle axis to overcome drag torgue and spring power, spur console panel to turn under the opening direction, and gets moving contacts rocker to compress spring to dead point, and then spring energy storing is over, prepare for the next closing.

Technical Parameters

product model                           EMD6-12/31.5-210               /             EK6-40.5/31.5-280

rated voltage(kV)                                  10                                                   35

the largest working voltage scope(kv)       12                                                   40.5

4s stable current(kA)                             31.5                                                31.5

moving stable current( peak value)          80                                                     80

close-open current(peak value)                80                                                   80

pole central distance(mm)                       210                                                 280

close-open speed(m/s)                           >6                                                   >6

main circuit contacting resistance(ohm)    <120                                               <120