What does the E10 suffix mean on M-frame breakers?

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What does the E10 suffix indicate on PowerPacT M-frame breakers?

Issue:
What does E10 mean on the end of an M frame breaker?

Product Line:
PowerPacT M-frames

Resolution:
The E10 suffix indicates a new electronic trip unit for the M-frame breakers that has both adjustable long time and adjustable instantaneous trip.