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A few tips on how to select contactors for use in direct on line starters

Contactors for DOL starters Contactors for use in direct on line starters (DOL) are normally selected by their AC3 rating, that is the switching on of a cage type induction motor and switching off the supply to the motor after the motor has run up to full speed. The other most common utilisation categories are […]

from Energy and Power – EEP – Electrical Engineering Portal http://ift.tt/1WUlP1B
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