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Factory Automation

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  • No : 23239
  • Release Date : 2018/09/12 15:11
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About Low-voltage Power Distribution Products

What is the reason why turning "OFF" MCM once when star-start iscompleted and switch to delta-operation?
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In our 3-contactor type star-delta starter (EYD), in order to eliminate thebreaking duty of the star contactor (MCS), the main contactor (MCM)break the star-starting currents. Therefore, the MCS short-circuit methodis set as a delta short-circuit, and a smaller frame than at star short-circuitis selected.
Product Name
Motor Starters
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