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9.1.4 Trip unit ETU776
Overview
1) The trip cause is stored internally for at least two days if the trip unit has been activated for at least 10 min before tripping
(for unlimited time with auxiliary power).
NOTICE
Electrostatic Discharge
Trip unit may become inoperative.
Before the protective cover is removed, ensure that the equipment to be connected, and also the operating
personnel, are at the same potential.
Mechanical RESET
for Bell Alarm and
Rating plug
Indicators
Trip cause indicator
1)
Query button
Te s t b u t t o n
Areas to record
protective settings
Option: Ground-fault module
COMMUNICATIONS
Trip unit activated
Overcurrent alarm
Areas to record
protective settings
Option: Reset Lockout
Graphical display
Trip unit error indicator
Indicators
Ground-fault alarm
Ground-fault tripped
CLEAR button
Test connector
prevents accidental resetting of the lockout
mechanism after a trip
Sealing eyelet
remote trip
Operating keys for setting
tripping parameters
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