3LEECTRICAL CIRCUIT INTERRUPTING DEVICE

摘要

A microprocessor based overcurrent trip unit which generates trip signals as an adjustable function of current and time, has a visual representation of the trip function on a front panel with 2-color LEDs associated with the trip function serving as indicators of trip conditions when red, and of a selected programmable paramater when green. The gren LEDs flash to indicate a parameter selected for modification in a program mode and illuminate steady in a view mode.