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How do the Micrologic trip units respond to harmonic loads?

Product Line:
Circuit Breaker Micrologic Trip Units

Applies to the following Trip Units:
ET1.0I for P and R frames, 
3.0, 3.0A
5.0, 5.0A, 5.0P, 5.0H*
6.0A, 6.0P, 6.0H*

DOES NOT apply to ET1.0 for M frame


The Micrologic Trip Unit samples the current waveform to provide true RMS sensing and protection through the 15th harmonic.

* For the 5.0H and 6.0H Harmonic trip units measure FFT (fast fourier transform) of odd harmonics up to 31st harmonic (percentage of rms value with respect to rms value of the fundamental)
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