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  1. PLCs, VFDs, Motors and Controls
    Hi guys, I been asked to quote on a 175hp 600v 3ph Atlas air compressor, no name plate as unit hasnt been ordered yet. Been spending the past few years doing mainly resi so im a bit rusty and hopefully can get some confirmation from you guys. (CEC).. from my calc, conductors would be 3/O...
  2. General Electrical Discussion
    Air Compressor problem. Tank pressure activates pressure switch activates magnetic starter activates electric motor. Air pressure "Unloader" copper pipe goes from tank to pressure switch to turn compressor on. Air pressure from tank goes to pressure switch to turn compressor off. This is a...
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