Reply to "Protecting Legacy Electronics"

NortonOGR Forum Member

While thermal breakers have long trip times, electronic breakers actually trip in just over 1/2 a 60 HZ wavelength or about 9 milliseconds. This was verified on an Oscilloscope with both a TMCC Lock On and 180 watt brick. An amplifier monitors the current and opens the circuit at its set point virtually immediately. It doesn't depend on temperature increase to break a contact.

Pete

8/10/2010:00 AM

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