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What is contact wear indication in Micrologic of Masterpact NT/NW and in which micrologic this feature is available.

Each time Contact opens, the Micrologic P trip unit measures the interrupted current and increments the contact-wear indicator as a
function of the interrupted current, according to test results stored in memory. Breaking under normal load conditions results in a very
slight increment. The indicator value may be read on the FDM121 display. It provides an estimation of contact wear calculated on the
basis of the cumulative forces affecting the circuit breaker. When the indicator reaches 100 %, it is advised to inspect the circuit breaker to
ensure the availability of the protected equipment.

This feature is available in Micrologic P only.The indicator value may be read on the FDM121 display only.
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