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  1. Industrial Electrical Forum
    Had an interesting thing at work today. A 25 HP bucket had a contactor chattering. To me this has always been a pretty clear indicator that the contactor is done. Changed the bucket and had the exact same thing happen. I had my apprentice stand by the motor, it sounded awful and the gear box...
  2. Commercial Electrical Forum
    We installed some fans for a customer with a speed control for them, all worked fine. The customer then asked for them to be put on a timer so they could be set to run for a few hours and then shut off. We installed a 30A clapper relay before the speed controllers that was controlled by a...
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